Start fixing 2015 for new API.

2024 day 8.
Force flush API message.
2024-12-08 12:13:41 +01:00 · 2024-12-08 08:53:36 +01:00 · 2024-12-07 12:38:02 +01:00 · 2024-12-07 12:21:57 +01:00 · 2024-12-07 09:39:17 +01:00 · 2024-12-06 21:15:18 +01:00
152 changed files with 1653 additions and 20841 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,3 @@ __pycache__
 .ruff_cache
 .vscode
 build
-files
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,15 +1,4 @@
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@@ -144,30 +133,6 @@ traitlets = ">=4"
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@@ -214,19 +179,6 @@ files = [
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@@ -522,133 +430,68 @@ files = [

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@@ -1308,40 +1026,90 @@ cffi = {version = "*", markers = "implementation_name == \"pypy\""}

 [[package]]
 name = "ruff"
-version = "0.8.3"
+version = "0.8.1"
 description = "An extremely fast Python linter and code formatter, written in Rust."
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 python-versions = ">=3.7"
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 ]

+[[package]]
+name = "scipy"
+version = "1.14.1"
+description = "Fundamental algorithms for scientific computing in Python"
+optional = false
+python-versions = ">=3.10"
+files = [
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+    {file = "scipy-1.14.1.tar.gz", hash = "sha256:5a275584e726026a5699459aa72f828a610821006228e841b94275c4a7c08417"},
+]
+
+[package.dependencies]
+numpy = ">=1.23.5,<2.3"
+
+[package.extras]
+dev = ["cython-lint (>=0.12.2)", "doit (>=0.36.0)", "mypy (==1.10.0)", "pycodestyle", "pydevtool", "rich-click", "ruff (>=0.0.292)", "types-psutil", "typing_extensions"]
+doc = ["jupyterlite-pyodide-kernel", "jupyterlite-sphinx (>=0.13.1)", "jupytext", "matplotlib (>=3.5)", "myst-nb", "numpydoc", "pooch", "pydata-sphinx-theme (>=0.15.2)", "sphinx (>=5.0.0,<=7.3.7)", "sphinx-design (>=0.4.0)"]
+test = ["Cython", "array-api-strict (>=2.0)", "asv", "gmpy2", "hypothesis (>=6.30)", "meson", "mpmath", "ninja", "pooch", "pytest", "pytest-cov", "pytest-timeout", "pytest-xdist", "scikit-umfpack", "threadpoolctl"]
+
 [[package]]
 name = "six"
-version = "1.17.0"
+version = "1.16.0"
 description = "Python 2 and 3 compatibility utilities"
 optional = false
-python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,>=2.7"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
 files = [
-    {file = "six-1.17.0-py2.py3-none-any.whl", hash = "sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274"},
-    {file = "six-1.17.0.tar.gz", hash = "sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81"},
+    {file = "six-1.16.0-py2.py3-none-any.whl", hash = "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"},
+    {file = "six-1.16.0.tar.gz", hash = "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926"},
 ]

 [[package]]
@@ -1527,4 +1295,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "5b57bccd8dc65a9acecbe187939bae625ef6a259f4188c6587907245bcfa604f"
+content-hash = "c91bc307ff4a5b3e8cd1976ebea211c9749fe09d563dd80861f70ce26826cda9"
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,12 +12,10 @@ python = "^3.10"
 numpy = "^2.1.3"
 tqdm = "^4.67.1"
 parse = "^1.20.2"
+scipy = "^1.14.1"
 sympy = "^1.13.3"
 networkx = "^3.4.2"
-pillow = "^11.0.0"
-imageio = "^2.36.1"
-pygifsicle = "^1.1.0"
-opencv-python = "^4.10.0.84"
+pandas = "^2.2.3"

 [tool.poetry.group.dev.dependencies]
 pyright = "^1.1.389"
@@ -27,13 +25,6 @@ ipykernel = "^6.29.5"
 networkx-stubs = "^0.0.1"
 types-networkx = "^3.4.2.20241115"

-[tool.poetry.group.cplex.dependencies]
-docplex = "^2.28.240"
-cplex = "^22.1.1.2"
-
-[tool.poetry.group.ortools.dependencies]
-ortools = "^9.11.4210"
-
 [tool.poetry.scripts]
 holt59-aoc = "holt59.aoc.__main__:main"

--- a/src/holt59/aoc/2015/day19.py
+++ b/src/holt59/aoc/2015/day19.py
@@ -52,6 +52,7 @@ class Solver(BaseSolver):
                    m2 += molecule[i]
                    i += 1

+            # print(m2)
            molecule = m2

        yield count
--- a/src/holt59/aoc/2015/day22.py
+++ b/src/holt59/aoc/2015/day22.py
@@ -173,6 +173,7 @@ class Solver(BaseSolver):
            )
        )

+        # 1242 (not working)
        yield sum(
            c
            for _, c in play(
--- a/src/holt59/aoc/2015/day23.py
+++ b/src/holt59/aoc/2015/day23.py
@@ -1,107 +0,0 @@
-import inspect
-from typing import Any, Callable, Final, Iterator, Mapping
-
-from ..base import BaseSolver
-
-
-class Instruction:
-    def __init__(self, fn: Callable[..., None]):
-        self._fn = fn
-
-        args = inspect.getfullargspec(fn)
-
-        self._argtypes = [args.annotations[arg] for arg in args.args[1:]]
-
-    def __call__(self, args: tuple[str, ...]):
-        self._fn(
-            *(argtype(arg) for arg, argtype in zip(args, self._argtypes, strict=True))
-        )
-
-
-class Machine:
-    def __init__(
-        self, instructions: list[str], registers: dict[str, int] = {"a": 0, "b": 1}
-    ):
-        self.instructions: Final = [
-            (part[0], tuple(arg.strip() for arg in " ".join(part[1:]).split(",")))
-            for instruction in instructions
-            if (part := instruction.split())
-        ]
-
-        self._fns = {
-            name: Instruction(getattr(self, name))
-            for name in ("hlf", "tpl", "inc", "jmp", "jie", "jio")
-        }
-
-        self._registers = registers.copy()
-        self._ip = 0
-
-    @property
-    def registers(self) -> Mapping[str, int]:
-        return self._registers
-
-    @property
-    def ip(self) -> int:
-        return self._ip
-
-    def reset(self, registers: dict[str, int] = {"a": 0, "b": 0}):
-        self._registers = registers.copy()
-        self._ip = 0
-
-    def hlf(self, register: str):
-        self._registers[register] //= 2
-        self._ip += 1
-
-    def tpl(self, register: str):
-        self._registers[register] *= 3
-        self._ip += 1
-
-    def inc(self, register: str):
-        self._registers[register] += 1
-        self._ip += 1
-
-    def jmp(self, offset: int):
-        self._ip += offset
-        assert 0 <= self._ip < len(self.instructions)
-
-    def jie(self, register: str, offset: int):
-        if self._registers[register] % 2 == 0:
-            self._ip += offset
-        else:
-            self._ip += 1
-
-    def jio(self, register: str, offset: int):
-        if self._registers[register] == 1:
-            self._ip += offset
-        else:
-            self._ip += 1
-
-    def _exec(self) -> bool:
-        # execute next instruction
-        if self._ip >= len(self.instructions):
-            return False
-
-        ins, args = self.instructions[self._ip]
-
-        if ins not in self._fns:
-            return False
-
-        self._fns[ins](args)
-        return True
-
-    def run(self):
-        while self._exec():
-            ...
-        return self.registers
-
-
-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        machine = Machine(input.splitlines())
-
-        registers = machine.run()
-        yield registers["b"]
-
-        machine.reset({"a": 1, "b": 0})
-        registers = machine.run()
-        yield registers["b"]
--- a/src/holt59/aoc/2015/day24.py
+++ b/src/holt59/aoc/2015/day24.py
@@ -1,88 +0,0 @@
-from typing import Any, Iterator, TypeAlias
-
-from ..base import BaseSolver
-
-TupleOfInts: TypeAlias = tuple[int, ...]
-
-
-def check_n_groups(
-    target: int, groups: tuple[TupleOfInts, ...], numbers: TupleOfInts
-) -> bool:
-    n_groups = len(groups)
-    groups_s = tuple(sum(group) for group in groups)
-
-    if all(target == group_s for group_s in groups_s):
-        return not numbers
-
-    if not numbers:
-        return False
-
-    head, *tail_l = numbers
-    tail, tail_s = tuple(tail_l), sum(tail_l)
-
-    return any(
-        groups_s[i] + head <= target
-        and sum(groups_s[j] for j in range(len(groups)) if i != j) + tail_s
-        >= (n_groups - 1) * target
-        and check_n_groups(
-            target, groups[:i] + ((groups[i] + (head,)),) + groups[i + 1 :], tail
-        )
-        for i in range(len(groups))
-    )
-
-
-def enumerate_single_subset(
-    target: int, numbers: TupleOfInts
-) -> Iterator[tuple[int, TupleOfInts, TupleOfInts]]:
-    """
-    Enumerate subset of numbers whose sum equals target.
-
-    Subset are enumerated in increasing order of length, then product (quantum value).
-
-    Args:
-        target: Target for the sum of the subset.
-        numbers: Tuple of integers to find the subset from.
-
-    Returns:
-        A generator (quantum, subset, remaining) where subset if the subset of numbers
-        whose sum equals target, quantum the product of the subset, and remaining the
-        remaining numbers.
-    """
-    groups: list[tuple[int, TupleOfInts, TupleOfInts]] = [(1, (), numbers)]
-
-    for _ in range(len(numbers)):
-        new_groups: list[tuple[int, TupleOfInts, TupleOfInts]] = []
-
-        for g_quantum, group, remaining in groups:
-            sg = sum(group)
-            for i in range(len(remaining)):
-                if group and remaining[i] <= group[-1]:
-                    continue
-
-                uv = remaining[:i] + remaining[i + 1 :]
-                kv = g_quantum * remaining[i], group + (remaining[i],), uv
-
-                if sg + remaining[i] == target:
-                    yield kv
-                elif sg + remaining[i] < target:
-                    new_groups.append(kv)
-
-        groups = new_groups
-
-
-def find_min_quantum(numbers: tuple[int, ...], n_groups: int):
-    return next(
-        g_quantum
-        for g_quantum, group_1v2, group_234v2 in enumerate_single_subset(
-            sum(numbers) // n_groups, numbers
-        )
-        if check_n_groups(sum(group_1v2), ((),) * (n_groups - 1), group_234v2)
-    )
-
-
-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        numbers = tuple(map(int, input.split()))
-
-        yield find_min_quantum(numbers, 3)
-        yield find_min_quantum(numbers, 4)
--- a/src/holt59/aoc/2015/day25.py
+++ b/src/holt59/aoc/2015/day25.py
@@ -1,16 +0,0 @@
-import re
-from typing import Any, Iterator
-
-from ..base import BaseSolver
-from ..tools.math import pow_mod
-
-
-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        m = re.search(r"row\s*([0-9]+)\s*,\s*column\s*([0-9]+)", input)
-        assert m is not None
-
-        row, col = int(m.group(1)), int(m.group(2))
-        n = (row * (row - 1)) // 2 + col * (col + 1) // 2 + (row - 1) * (col - 1)
-
-        yield (20151125 * pow_mod(252533, n - 1, 33554393)) % 33554393
--- a/src/holt59/aoc/2021/day1.py
+++ b/src/holt59/aoc/2021/day1.py
@@ -1,17 +1,14 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+values = [int(line) for line in lines]

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = input.splitlines()
+# part 1
+answer_1 = sum(v2 > v1 for v1, v2 in zip(values[:-1], values[1:]))
+print(f"answer 1 is {answer_1}")

-        values = [int(line) for line in lines]
-
-        # part 1
-        yield sum(v2 > v1 for v1, v2 in zip(values[:-1], values[1:]))
-
-        # part 2
-        runnings = [sum(values[i : i + 3]) for i in range(len(values) - 2)]
-        yield sum(v2 > v1 for v1, v2 in zip(runnings[:-1], runnings[1:]))
+# part 2
+runnings = [sum(values[i : i + 3]) for i in range(len(values) - 2)]
+answer_2 = sum(v2 > v1 for v1, v2 in zip(runnings[:-1], runnings[1:]))
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day10.py
+++ b/src/holt59/aoc/2021/day10.py
@@ -1,47 +1,11 @@
-from functools import reduce
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

-BRACKETS = {"{": "}", "[": "]", "<": ">", "(": ")"}
+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-CORRUPT_SCORES = {")": 3, "]": 57, "}": 1197, ">": 25137}
-COMPLETE_SCORES = {")": 1, "]": 2, "}": 3, ">": 4}
-
-
-def corrupted_or_incomplete(line: str) -> tuple[bool, str]:
-    opens: list[str] = []
-
-    for c in line:
-        if c in BRACKETS:
-            opens.append(c)
-        elif BRACKETS[opens[-1]] != c:
-            return True, c
-        else:
-            opens.pop()
-
-    return (False, "".join(opens))
-
-
-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = input.splitlines()
-
-        answer_1: int = 0
-        incomplete_scores: list[int] = []
-
-        for line in lines:
-            c, r = corrupted_or_incomplete(line)
-            if c:
-                answer_1 += CORRUPT_SCORES[r]
-            else:
-                incomplete_scores.append(
-                    reduce(
-                        lambda s, c: s * 5 + COMPLETE_SCORES[BRACKETS[c]],
-                        reversed(r),
-                        0,
-                    ),
-                )
-
-        yield answer_1
-        yield sorted(incomplete_scores)[len(incomplete_scores) // 2]
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day11.py
+++ b/src/holt59/aoc/2021/day11.py
@@ -1,66 +1,11 @@
-import itertools as it
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-def do_step(values: list[list[int]]) -> tuple[list[list[int]], set[tuple[int, int]]]:
-    values = [[c + 1 for c in r] for r in values]
-    flashed: set[tuple[int, int]] = set()
-
-    while True:
-        found = False
-
-        for i_row, row in enumerate(values):
-            for i_col, col in enumerate(row):
-                if col <= 9 or (i_row, i_col) in flashed:
-                    continue
-
-                found = True
-                flashed.add((i_row, i_col))
-                for dr, dc in it.product((-1, 0, 1), repeat=2):
-                    if 0 <= i_row + dr < len(values) and 0 <= i_col + dc < len(
-                        values[0]
-                    ):
-                        values[i_row + dr][i_col + dc] += 1
-
-        if not found:
-            break
-
-    for i, j in flashed:
-        values[i][j] = 0
-
-    return values, flashed
-
-
-class Solver(BaseSolver):
-    def print_grid(self, values: list[list[int]], flashed: set[tuple[int, int]]):
-        for i_row, row in enumerate(values):
-            s_row = ""
-            for i_col, col in enumerate(row):
-                if (i_row, i_col) in flashed:
-                    s_row += f"\033[0;31m{col}\033[0;00m"
-                else:
-                    s_row += str(col)
-            self.logger.info(s_row)
-        self.logger.info("")
-
-    def solve(self, input: str) -> Iterator[Any]:
-        values_0 = [[int(c) for c in r] for r in input.splitlines()]
-
-        values = values_0
-        total_flashed: int = 0
-        for _ in range(100):
-            values, flashed = do_step(values)
-            total_flashed += len(flashed)
-
-        yield total_flashed
-
-        n_cells = len(values) * len(values[0])
-        flashed: set[tuple[int, int]] = set()
-        values, step = values_0, 0
-        while len(flashed) != n_cells:
-            values, flashed = do_step(values)
-            step += 1
-
-        yield step
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day12.py
+++ b/src/holt59/aoc/2021/day12.py
@@ -1,64 +1,11 @@
-import string
-from collections import defaultdict
-from functools import cache
-from typing import Any, Iterator, Mapping, Sequence
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-@cache
-def is_small(node: str):
-    return all(c in string.ascii_lowercase for c in node)
-
-
-def enumerate_paths(
-    neighbors: Mapping[str, Sequence[str]],
-    duplicate_smalls: int = 0,
-    start: str = "start",
-    current: tuple[str, ...] = ("start",),
-) -> Iterator[tuple[str, ...]]:
-    if start == "end":
-        yield current
-
-    for neighbor in neighbors[start]:
-        if not is_small(neighbor):
-            yield from enumerate_paths(
-                neighbors, duplicate_smalls, neighbor, current + (neighbor,)
-            )
-        elif neighbor not in current:
-            yield from enumerate_paths(
-                neighbors, duplicate_smalls, neighbor, current + (neighbor,)
-            )
-        elif duplicate_smalls > 0:
-            yield from enumerate_paths(
-                neighbors, duplicate_smalls - 1, neighbor, current + (neighbor,)
-            )
-
-
-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        neighbors: dict[str, list[str]] = defaultdict(list)
-
-        for row in input.splitlines():
-            a, b = row.split("-")
-            if a != "end" and b != "start":
-                neighbors[a].append(b)
-            if b != "end" and a != "start":
-                neighbors[b].append(a)
-
-        if self.files:
-            graph = "graph {\n"
-            for node, neighbors_of in neighbors.items():
-                graph += (
-                    " ".join(
-                        f"{node} -- {neighbor};"
-                        for neighbor in neighbors_of
-                        if node <= neighbor or node == "start" or neighbor == "end"
-                    )
-                    + "\n"
-                )
-            graph += "}\n"
-            self.files.create("graph.dot", graph.encode(), False)
-
-        yield len(list(enumerate_paths(neighbors)))
-        yield len(list(enumerate_paths(neighbors, 1)))
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day13.py
+++ b/src/holt59/aoc/2021/day13.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day14.py
+++ b/src/holt59/aoc/2021/day14.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day15.py
+++ b/src/holt59/aoc/2021/day15.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day16.py
+++ b/src/holt59/aoc/2021/day16.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day17.py
+++ b/src/holt59/aoc/2021/day17.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day18.py
+++ b/src/holt59/aoc/2021/day18.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day19.py
+++ b/src/holt59/aoc/2021/day19.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day2.py
+++ b/src/holt59/aoc/2021/day2.py
@@ -1,38 +1,41 @@
+import sys
 from math import prod
-from typing import Any, Iterator, Literal, TypeAlias, cast
+from typing import Literal, TypeAlias, cast

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

 Command: TypeAlias = Literal["forward", "up", "down"]

+commands: list[tuple[Command, int]] = [
+    (cast(Command, (p := line.split())[0]), int(p[1])) for line in lines
+]

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = input.splitlines()

-        commands: list[tuple[Command, int]] = [
-            (cast(Command, (p := line.split())[0]), int(p[1])) for line in lines
-        ]
+def depth_and_position(use_aim: bool):
+    aim, pos, depth = 0, 0, 0
+    for command, value in commands:
+        d_depth = 0
+        match command:
+            case "forward":
+                pos += value
+                depth += value * aim
+            case "up":
+                d_depth = -value
+            case "down":
+                d_depth = value

-        def depth_and_position(use_aim: bool):
-            aim, pos, depth = 0, 0, 0
-            for command, value in commands:
-                d_depth = 0
-                match command:
-                    case "forward":
-                        pos += value
-                        depth += value * aim
-                    case "up":
-                        d_depth = -value
-                    case "down":
-                        d_depth = value
+        if use_aim:
+            aim += d_depth
+        else:
+            depth += value

-                if use_aim:
-                    aim += d_depth
-                else:
-                    depth += value
+    return depth, pos

-            return depth, pos

-        yield prod(depth_and_position(False))
-        yield prod(depth_and_position(True))
+# part 1
+answer_1 = prod(depth_and_position(False))
+print(f"answer 1 is {answer_1}")
+
+# part 2
+answer_2 = prod(depth_and_position(True))
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day20.py
+++ b/src/holt59/aoc/2021/day20.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day21.py
+++ b/src/holt59/aoc/2021/day21.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day22.py
+++ b/src/holt59/aoc/2021/day22.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day23.py
+++ b/src/holt59/aoc/2021/day23.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day24.py
+++ b/src/holt59/aoc/2021/day24.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day25.py
+++ b/src/holt59/aoc/2021/day25.py
@@ -1,7 +1,11 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+# part 1
+answer_1 = ...
+print(f"answer 1 is {answer_1}")

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]: ...
+# part 2
+answer_2 = ...
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day3.py
+++ b/src/holt59/aoc/2021/day3.py
@@ -1,7 +1,6 @@
+import sys
 from collections import Counter
-from typing import Any, Iterator, Literal
-
-from ..base import BaseSolver
+from typing import Literal


 def generator_rating(
@@ -21,23 +20,20 @@ def generator_rating(
    return values[0]


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = input.splitlines()
+lines = sys.stdin.read().splitlines()

-        # part 1
-        most_and_least_common = [
-            tuple(
-                Counter(line[col] for line in lines).most_common(2)[m][0]
-                for m in range(2)
-            )
-            for col in range(len(lines[0]))
-        ]
-        gamma_rate = int("".join(most for most, _ in most_and_least_common), base=2)
-        epsilon_rate = int("".join(least for _, least in most_and_least_common), base=2)
-        yield gamma_rate * epsilon_rate

-        # part 2
-        oxygen_generator_rating = int(generator_rating(lines, True, "1"), base=2)
-        co2_scrubber_rating = int(generator_rating(lines, False, "0"), base=2)
-        yield oxygen_generator_rating * co2_scrubber_rating
+# part 1
+most_and_least_common = [
+    tuple(Counter(line[col] for line in lines).most_common(2)[m][0] for m in range(2))
+    for col in range(len(lines[0]))
+]
+gamma_rate = int("".join(most for most, _ in most_and_least_common), base=2)
+epsilon_rate = int("".join(least for _, least in most_and_least_common), base=2)
+print(f"answer 1 is {gamma_rate * epsilon_rate}")
+
+# part 2
+oxygen_generator_rating = int(generator_rating(lines, True, "1"), base=2)
+co2_scrubber_rating = int(generator_rating(lines, False, "0"), base=2)
+answer_2 = oxygen_generator_rating * co2_scrubber_rating
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day4.py
+++ b/src/holt59/aoc/2021/day4.py
@@ -1,52 +1,45 @@
-from typing import Any, Iterator
+import sys

 import numpy as np

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+numbers = [int(c) for c in lines[0].split(",")]

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = input.splitlines()
+boards = np.asarray(
+    [
+        [[int(c) for c in line.split()] for line in lines[start : start + 5]]
+        for start in range(2, len(lines), 6)
+    ]
+)

-        numbers = [int(c) for c in lines[0].split(",")]
+# (round, score) for each board (-1 when not found)
+winning_rounds: list[tuple[int, int]] = [(-1, -1) for _ in range(len(boards))]
+marked = np.zeros_like(boards, dtype=bool)

-        boards = np.asarray(
-            [
-                [[int(c) for c in line.split()] for line in lines[start : start + 5]]
-                for start in range(2, len(lines), 6)
-            ]
-        )
+for round, number in enumerate(numbers):
+    # mark boards
+    marked[boards == number] = True

-        # (round, score) for each board (-1 when not found)
-        winning_rounds: list[tuple[int, int]] = [(-1, -1) for _ in range(len(boards))]
-        marked = np.zeros_like(boards, dtype=bool)
+    # check each board for winning
+    for index in range(len(boards)):
+        if winning_rounds[index][0] > 0:
+            continue

-        for round, number in enumerate(numbers):
-            # mark boards
-            marked[boards == number] = True
+        if np.any(np.all(marked[index], axis=0) | np.all(marked[index], axis=1)):
+            winning_rounds[index] = (
+                round,
+                number * int(np.sum(boards[index][~marked[index]])),
+            )

-            # check each board for winning
-            for index in range(len(boards)):
-                if winning_rounds[index][0] > 0:
-                    continue
+    # all boards are winning - break
+    if np.all(marked.all(axis=1) | marked.all(axis=2)):
+        break

-                if np.any(
-                    np.all(marked[index], axis=0) | np.all(marked[index], axis=1)
-                ):
-                    winning_rounds[index] = (
-                        round,
-                        number * int(np.sum(boards[index][~marked[index]])),
-                    )
+# part 1
+(_, score) = min(winning_rounds, key=lambda w: w[0])
+print(f"answer 1 is {score}")

-            # all boards are winning - break
-            if np.all(marked.all(axis=1) | marked.all(axis=2)):
-                break
-
-        # part 1
-        (_, score) = min(winning_rounds, key=lambda w: w[0])
-        yield score
-
-        # part 2
-        (_, score) = max(winning_rounds, key=lambda w: w[0])
-        yield score
+# part 2
+(_, score) = max(winning_rounds, key=lambda w: w[0])
+print(f"answer 2 is {score}")
--- a/src/holt59/aoc/2021/day5.py
+++ b/src/holt59/aoc/2021/day5.py
@@ -1,48 +1,48 @@
-from typing import Any, Iterator
+import sys

 import numpy as np

-from ..base import BaseSolver
+lines: list[str] = sys.stdin.read().splitlines()

+sections: list[tuple[tuple[int, int], tuple[int, int]]] = [
+    (
+        (
+            int(line.split(" -> ")[0].split(",")[0]),
+            int(line.split(" -> ")[0].split(",")[1]),
+        ),
+        (
+            int(line.split(" -> ")[1].split(",")[0]),
+            int(line.split(" -> ")[1].split(",")[1]),
+        ),
+    )
+    for line in lines
+]

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = input.splitlines()
+np_sections = np.array(sections).reshape(-1, 4)

-        sections: list[tuple[tuple[int, int], tuple[int, int]]] = [
-            (
-                (
-                    int(line.split(" -> ")[0].split(",")[0]),
-                    int(line.split(" -> ")[0].split(",")[1]),
-                ),
-                (
-                    int(line.split(" -> ")[1].split(",")[0]),
-                    int(line.split(" -> ")[1].split(",")[1]),
-                ),
-            )
-            for line in lines
-        ]
+x_min, x_max, y_min, y_max = (
+    min(np_sections[:, 0].min(), np_sections[:, 2].min()),
+    max(np_sections[:, 0].max(), np_sections[:, 2].max()),
+    min(np_sections[:, 1].min(), np_sections[:, 3].min()),
+    max(np_sections[:, 1].max(), np_sections[:, 3].max()),
+)

-        np_sections = np.array(sections).reshape(-1, 4)
+counts_1 = np.zeros((y_max + 1, x_max + 1), dtype=int)
+counts_2 = counts_1.copy()

-        x_max, y_max = (
-            max(np_sections[:, 0].max(), np_sections[:, 2].max()),
-            max(np_sections[:, 1].max(), np_sections[:, 3].max()),
-        )
+for (x1, y1), (x2, y2) in sections:
+    x_rng = range(x1, x2 + 1, 1) if x2 >= x1 else range(x1, x2 - 1, -1)
+    y_rng = range(y1, y2 + 1, 1) if y2 >= y1 else range(y1, y2 - 1, -1)

-        counts_1 = np.zeros((y_max + 1, x_max + 1), dtype=int)
-        counts_2 = counts_1.copy()
+    if x1 == x2 or y1 == y2:
+        counts_1[list(y_rng), list(x_rng)] += 1
+        counts_2[list(y_rng), list(x_rng)] += 1
+    elif abs(x2 - x1) == abs(y2 - y1):
+        for i, j in zip(y_rng, x_rng):
+            counts_2[i, j] += 1

-        for (x1, y1), (x2, y2) in sections:
-            x_rng = range(x1, x2 + 1, 1) if x2 >= x1 else range(x1, x2 - 1, -1)
-            y_rng = range(y1, y2 + 1, 1) if y2 >= y1 else range(y1, y2 - 1, -1)
+answer_1 = (counts_1 >= 2).sum()
+print(f"answer 1 is {answer_1}")

-            if x1 == x2 or y1 == y2:
-                counts_1[list(y_rng), list(x_rng)] += 1
-                counts_2[list(y_rng), list(x_rng)] += 1
-            elif abs(x2 - x1) == abs(y2 - y1):
-                for i, j in zip(y_rng, x_rng):
-                    counts_2[i, j] += 1
-
-        yield (counts_1 >= 2).sum()
-        yield (counts_2 >= 2).sum()
+answer_2 = (counts_2 >= 2).sum()
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day6.py
+++ b/src/holt59/aoc/2021/day6.py
@@ -1,21 +1,21 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+values = [int(c) for c in sys.stdin.read().strip().split(",")]

+days = 256
+lanterns = {day: 0 for day in range(days)}
+for value in values:
+    for day in range(value, days, 7):
+        lanterns[day] += 1

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        values = [int(c) for c in input.split(",")]
+for day in range(days):
+    for day2 in range(day + 9, days, 7):
+        lanterns[day2] += lanterns[day]

-        days = 256
-        lanterns = {day: 0 for day in range(days)}
-        for value in values:
-            for day in range(value, days, 7):
-                lanterns[day] += 1
+# part 1
+answer_1 = sum(v for k, v in lanterns.items() if k < 80) + len(values)
+print(f"answer 1 is {answer_1}")

-        for day in range(days):
-            for day2 in range(day + 9, days, 7):
-                lanterns[day2] += lanterns[day]
-
-        yield sum(v for k, v in lanterns.items() if k < 80) + len(values)
-        yield sum(lanterns.values()) + len(values)
+# part 2
+answer_2 = sum(lanterns.values()) + len(values)
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day7.py
+++ b/src/holt59/aoc/2021/day7.py
@@ -1,22 +1,19 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+positions = [int(c) for c in sys.stdin.read().strip().split(",")]

+min_position, max_position = min(positions), max(positions)

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        positions = [int(c) for c in input.split(",")]
+# part 1
+answer_1 = min(
+    sum(abs(p - position) for p in positions)
+    for position in range(min_position, max_position + 1)
+)
+print(f"answer 1 is {answer_1}")

-        min_position, max_position = min(positions), max(positions)
-
-        # part 1
-        yield min(
-            sum(abs(p - position) for p in positions)
-            for position in range(min_position, max_position + 1)
-        )
-
-        # part 2
-        yield min(
-            sum(abs(p - position) * (abs(p - position) + 1) // 2 for p in positions)
-            for position in range(min_position, max_position + 1)
-        )
+# part 2
+answer_2 = min(
+    sum(abs(p - position) * (abs(p - position) + 1) // 2 for p in positions)
+    for position in range(min_position, max_position + 1)
+)
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day8.py
+++ b/src/holt59/aoc/2021/day8.py
@@ -1,7 +1,8 @@
 import itertools
-from typing import Any, Iterator
+import os
+import sys

-from ..base import BaseSolver
+VERBOSE = os.getenv("AOC_VERBOSE") == "True"

 digits = {
    "abcefg": 0,
@@ -16,74 +17,71 @@ digits = {
    "abcdfg": 9,
 }

+lines = sys.stdin.read().splitlines()

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = input.splitlines()
+# part 1
+lengths = {len(k) for k, v in digits.items() if v in (1, 4, 7, 8)}
+answer_1 = sum(
+    len(p) in lengths for line in lines for p in line.split("|")[1].strip().split()
+)
+print(f"answer 1 is {answer_1}")

-        # part 1
-        lengths = {len(k) for k, v in digits.items() if v in (1, 4, 7, 8)}
-        yield sum(
-            len(p) in lengths
-            for line in lines
-            for p in line.split("|")[1].strip().split()
-        )
+# part 2
+values: list[int] = []

-        # part 2
-        values: list[int] = []
+for line in lines:
+    parts = line.split("|")
+    broken_digits = sorted(parts[0].strip().split(), key=len)

-        for line in lines:
-            parts = line.split("|")
-            broken_digits = sorted(parts[0].strip().split(), key=len)
+    per_length = {
+        k: list(v)
+        for k, v in itertools.groupby(sorted(broken_digits, key=len), key=len)
+    }

-            per_length = {
-                k: list(v)
-                for k, v in itertools.groupby(sorted(broken_digits, key=len), key=len)
-            }
+    # a can be found immediately
+    a = next(u for u in per_length[3][0] if u not in per_length[2][0])

-            # a can be found immediately
-            a = next(u for u in per_length[3][0] if u not in per_length[2][0])
+    # c and f have only two possible values corresponding to the single entry of
+    # length 2
+    cf = list(per_length[2][0])

-            # c and f have only two possible values corresponding to the single entry of
-            # length 2
-            cf = list(per_length[2][0])
+    # the only digit of length 4 contains bcdf, so we can deduce bd by removing cf
+    bd = [u for u in per_length[4][0] if u not in cf]

-            # the only digit of length 4 contains bcdf, so we can deduce bd by removing cf
-            bd = [u for u in per_length[4][0] if u not in cf]
+    # the 3 digits of length 5 have a, d and g in common
+    adg = [u for u in per_length[5][0] if all(u in pe for pe in per_length[5][1:])]

-            # the 3 digits of length 5 have a, d and g in common
-            adg = [
-                u for u in per_length[5][0] if all(u in pe for pe in per_length[5][1:])
-            ]
+    # we can remove a
+    dg = [u for u in adg if u != a]

-            # we can remove a
-            dg = [u for u in adg if u != a]
+    # we can deduce d and g
+    d = next(u for u in dg if u in bd)
+    g = next(u for u in dg if u != d)

-            # we can deduce d and g
-            d = next(u for u in dg if u in bd)
-            g = next(u for u in dg if u != d)
+    # then b
+    b = next(u for u in bd if u != d)

-            # then b
-            b = next(u for u in bd if u != d)
+    # f is in the three 6-length digits, while c is only in 2
+    f = next(u for u in cf if all(u in p for p in per_length[6]))

-            # f is in the three 6-length digits, while c is only in 2
-            f = next(u for u in cf if all(u in p for p in per_length[6]))
+    # c is not f
+    c = next(u for u in cf if u != f)

-            # c is not f
-            c = next(u for u in cf if u != f)
+    # e is the last one
+    e = next(u for u in "abcdefg" if u not in {a, b, c, d, f, g})

-            # e is the last one
-            e = next(u for u in "abcdefg" if u not in {a, b, c, d, f, g})
+    mapping = dict(zip((a, b, c, d, e, f, g), "abcdefg"))

-            mapping = dict(zip((a, b, c, d, e, f, g), "abcdefg"))
+    value = 0
+    for number in parts[1].strip().split():
+        digit = "".join(sorted(mapping[c] for c in number))
+        value = 10 * value + digits[digit]

-            value = 0
-            for number in parts[1].strip().split():
-                digit = "".join(sorted(mapping[c] for c in number))
-                value = 10 * value + digits[digit]
+    if VERBOSE:
+        print(value)

-            self.logger.info(f"value for '{line}' is {value}")
+    values.append(value)

-            values.append(value)

-        yield sum(values)
+answer_2 = sum(values)
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2021/day9.py
+++ b/src/holt59/aoc/2021/day9.py
@@ -1,18 +1,18 @@
+import sys
 from math import prod
-from typing import Any, Iterator

-from ..base import BaseSolver
+values = [[int(c) for c in row] for row in sys.stdin.read().splitlines()]
+n_rows, n_cols = len(values), len(values[0])


-def neighbors(point: tuple[int, int], n_rows: int, n_cols: int):
+def neighbors(point: tuple[int, int]):
    i, j = point
    for di, dj in ((-1, 0), (+1, 0), (0, -1), (0, +1)):
        if 0 <= i + di < n_rows and 0 <= j + dj < n_cols:
            yield (i + di, j + dj)


-def basin(values: list[list[int]], start: tuple[int, int]) -> set[tuple[int, int]]:
-    n_rows, n_cols = len(values), len(values[0])
+def basin(start: tuple[int, int]) -> set[tuple[int, int]]:
    visited: set[tuple[int, int]] = set()
    queue = [start]

@@ -23,25 +23,22 @@ def basin(values: list[list[int]], start: tuple[int, int]) -> set[tuple[int, int
            continue

        visited.add((i, j))
-        queue.extend(neighbors((i, j), n_rows, n_cols))
+        queue.extend(neighbors((i, j)))

    return visited


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        values = [[int(c) for c in row] for row in input.splitlines()]
-        n_rows, n_cols = len(values), len(values[0])
+low_points = [
+    (i, j)
+    for i in range(n_rows)
+    for j in range(n_cols)
+    if all(values[ti][tj] > values[i][j] for ti, tj in neighbors((i, j)))
+]

-        low_points = [
-            (i, j)
-            for i in range(n_rows)
-            for j in range(n_cols)
-            if all(
-                values[ti][tj] > values[i][j]
-                for ti, tj in neighbors((i, j), n_rows, n_cols)
-            )
-        ]
+# part 1
+answer_1 = sum(values[i][j] + 1 for i, j in low_points)
+print(f"answer 1 is {answer_1}")

-        yield sum(values[i][j] + 1 for i, j in low_points)
-        yield prod(sorted(len(basin(values, point)) for point in low_points)[-3:])
+# part 2
+answer_2 = prod(sorted(len(basin(point)) for point in low_points)[-3:])
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2022/day1.py
+++ b/src/holt59/aoc/2022/day1.py
@@ -1,12 +1,7 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+blocks = sys.stdin.read().split("\n\n")
+values = sorted(sum(map(int, block.split())) for block in blocks)

-
-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        blocks = input.split("\n\n")
-        values = sorted(sum(map(int, block.split())) for block in blocks)
-
-        yield values[-1]
-        yield sum(values[-3:])
+print(f"answer 1 is {values[-1]}")
+print(f"answer 2 is {sum(values[-3:])}")
--- a/src/holt59/aoc/2022/day10.py
+++ b/src/holt59/aoc/2022/day10.py
@@ -1,43 +1,38 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()
+
+cycle = 1
+x = 1
+
+values = {cycle: x}
+
+for line in lines:
+    cycle += 1
+
+    if line == "noop":
+        pass
+    else:
+        r = int(line.split()[1])
+
+        values[cycle] = x
+
+        cycle += 1
+        x += r
+
+    values[cycle] = x
+
+answer_1 = sum(c * values[c] for c in range(20, max(values.keys()) + 1, 40))
+print(f"answer 1 is {answer_1}")


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = [line.strip() for line in input.splitlines()]
+for i in range(6):
+    for j in range(40):
+        v = values[1 + i * 40 + j]

-        cycle, x = 1, 1
-        values = {cycle: x}
+        if j >= v - 1 and j <= v + 1:
+            print("#", end="")
+        else:
+            print(".", end="")

-        for line in lines:
-            cycle += 1
-
-            if line == "noop":
-                pass
-            else:
-                r = int(line.split()[1])
-
-                values[cycle] = x
-
-                cycle += 1
-                x += r
-
-            values[cycle] = x
-
-        answer_1 = sum(c * values[c] for c in range(20, max(values.keys()) + 1, 40))
-        yield answer_1
-
-        yield (
-            "\n"
-            + "\n".join(
-                "".join(
-                    "#"
-                    if j >= (v := values[1 + i * 40 + j]) - 1 and j <= v + 1
-                    else "."
-                    for j in range(40)
-                )
-                for i in range(6)
-            )
-            + "\n"
-        )
+    print()
--- a/src/holt59/aoc/2022/day11.py
+++ b/src/holt59/aoc/2022/day11.py
@@ -1,8 +1,7 @@
 import copy
+import sys
 from functools import reduce
-from typing import Any, Callable, Final, Iterator, Mapping, Sequence
-
-from ..base import BaseSolver
+from typing import Callable, Final, Mapping, Sequence


 class Monkey:
@@ -120,28 +119,24 @@ def monkey_business(inspects: dict[Monkey, int]) -> int:
    return sorted_levels[-2] * sorted_levels[-1]


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        monkeys = [parse_monkey(block.splitlines()) for block in input.split("\n\n")]
+monkeys = [parse_monkey(block.splitlines()) for block in sys.stdin.read().split("\n\n")]

-        # case 1: we simply divide the worry by 3 after applying the monkey worry operation
-        yield monkey_business(
-            run(copy.deepcopy(monkeys), 20, me_worry_fn=lambda w: w // 3)
-        )
+# case 1: we simply divide the worry by 3 after applying the monkey worry operation
+answer_1 = monkey_business(
+    run(copy.deepcopy(monkeys), 20, me_worry_fn=lambda w: w // 3)
+)
+print(f"answer 1 is {answer_1}")

-        # case 2: to keep reasonable level values, we can use a modulo operation, we need to
-        # use the product of all "divisible by" test so that the test remains valid
-        #
-        # (a + b) % c == ((a % c) + (b % c)) % c --- this would work for a single test value
-        #
-        # (a + b) % c == ((a % d) + (b % d)) % c --- if d is a multiple of c, which is why here
-        # we use the product of all test value
-        #
-        total_test_value = reduce(lambda w, m: w * m.test_value, monkeys, 1)
-        yield monkey_business(
-            run(
-                copy.deepcopy(monkeys),
-                10_000,
-                me_worry_fn=lambda w: w % total_test_value,
-            )
-        )
+# case 2: to keep reasonable level values, we can use a modulo operation, we need to
+# use the product of all "divisible by" test so that the test remains valid
+#
+# (a + b) % c == ((a % c) + (b % c)) % c --- this would work for a single test value
+#
+# (a + b) % c == ((a % d) + (b % d)) % c --- if d is a multiple of c, which is why here
+# we use the product of all test value
+#
+total_test_value = reduce(lambda w, m: w * m.test_value, monkeys, 1)
+answer_2 = monkey_business(
+    run(copy.deepcopy(monkeys), 10_000, me_worry_fn=lambda w: w % total_test_value)
+)
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2022/day12.py
+++ b/src/holt59/aoc/2022/day12.py
@@ -1,7 +1,6 @@
 import heapq
-from typing import Any, Callable, Iterator, TypeVar
-
-from ..base import BaseSolver
+import sys
+from typing import Callable, Iterator, TypeVar

 Node = TypeVar("Node")

@@ -69,6 +68,30 @@ def make_path(parents: dict[Node, Node], start: Node, end: Node) -> list[Node] |
    return list(reversed(path))


+def print_path(path: list[tuple[int, int]], n_rows: int, n_cols: int) -> None:
+    end = path[-1]
+
+    graph = [["." for _c in range(n_cols)] for _r in range(n_rows)]
+    graph[end[0]][end[1]] = "E"
+
+    for i in range(0, len(path) - 1):
+        cr, cc = path[i]
+        nr, nc = path[i + 1]
+
+        if cr == nr and nc == cc - 1:
+            graph[cr][cc] = "<"
+        elif cr == nr and nc == cc + 1:
+            graph[cr][cc] = ">"
+        elif cr == nr - 1 and nc == cc:
+            graph[cr][cc] = "v"
+        elif cr == nr + 1 and nc == cc:
+            graph[cr][cc] = "^"
+        else:
+            assert False, "{} -> {} infeasible".format(path[i], path[i + 1])
+
+    print("\n".join("".join(row) for row in graph))
+
+
 def neighbors(
    grid: list[list[int]], node: tuple[int, int], up: bool
 ) -> Iterator[tuple[int, int]]:
@@ -95,82 +118,46 @@ def neighbors(

 # === main code ===

+lines = sys.stdin.read().splitlines()

-class Solver(BaseSolver):
-    def print_path(
-        self, name: str, path: list[tuple[int, int]], n_rows: int, n_cols: int
-    ) -> None:
-        if not self.files:
-            return
+grid = [[ord(cell) - ord("a") for cell in line] for line in lines]

-        end = path[-1]
+start: tuple[int, int] | None = None
+end: tuple[int, int] | None = None

-        graph = [["." for _c in range(n_cols)] for _r in range(n_rows)]
-        graph[end[0]][end[1]] = "E"
+# for part 2
+start_s: list[tuple[int, int]] = []

-        for i in range(0, len(path) - 1):
-            cr, cc = path[i]
-            nr, nc = path[i + 1]
+for i_row, row in enumerate(grid):
+    for i_col, col in enumerate(row):
+        if chr(col + ord("a")) == "S":
+            start = (i_row, i_col)
+            start_s.append(start)
+        elif chr(col + ord("a")) == "E":
+            end = (i_row, i_col)
+        elif col == 0:
+            start_s.append((i_row, i_col))

-            if cr == nr and nc == cc - 1:
-                graph[cr][cc] = "<"
-            elif cr == nr and nc == cc + 1:
-                graph[cr][cc] = ">"
-            elif cr == nr - 1 and nc == cc:
-                graph[cr][cc] = "v"
-            elif cr == nr + 1 and nc == cc:
-                graph[cr][cc] = "^"
-            else:
-                assert False, "{} -> {} infeasible".format(path[i], path[i + 1])
+assert start is not None
+assert end is not None

-        self.files.create(
-            f"graph_{name}.txt",
-            "\n".join("".join(row) for row in graph).encode(),
-            text=True,
-        )
+# fix values
+grid[start[0]][start[1]] = 0
+grid[end[0]][end[1]] = ord("z") - ord("a")

-    def solve(self, input: str) -> Iterator[Any]:
-        lines = input.splitlines()

-        grid = [[ord(cell) - ord("a") for cell in line] for line in lines]
+lengths_1, parents_1 = dijkstra(
+    start=start, neighbors=lambda n: neighbors(grid, n, True), cost=lambda lhs, rhs: 1
+)
+path_1 = make_path(parents_1, start, end)
+assert path_1 is not None

-        start: tuple[int, int] | None = None
-        end: tuple[int, int] | None = None
+print_path(path_1, n_rows=len(grid), n_cols=len(grid[0]))

-        # for part 2
-        start_s: list[tuple[int, int]] = []
+print(f"answer 1 is {lengths_1[end] - 1}")

-        for i_row, row in enumerate(grid):
-            for i_col, col in enumerate(row):
-                if chr(col + ord("a")) == "S":
-                    start = (i_row, i_col)
-                    start_s.append(start)
-                elif chr(col + ord("a")) == "E":
-                    end = (i_row, i_col)
-                elif col == 0:
-                    start_s.append((i_row, i_col))
-
-        assert start is not None
-        assert end is not None
-
-        # fix values
-        grid[start[0]][start[1]] = 0
-        grid[end[0]][end[1]] = ord("z") - ord("a")
-
-        lengths_1, parents_1 = dijkstra(
-            start=start,
-            neighbors=lambda n: neighbors(grid, n, True),
-            cost=lambda lhs, rhs: 1,
-        )
-        path_1 = make_path(parents_1, start, end)
-        assert path_1 is not None
-
-        self.print_path("answer1", path_1, n_rows=len(grid), n_cols=len(grid[0]))
-        yield lengths_1[end] - 1
-
-        lengths_2, _ = dijkstra(
-            start=end,
-            neighbors=lambda n: neighbors(grid, n, False),
-            cost=lambda lhs, rhs: 1,
-        )
-        yield min(lengths_2.get(start, float("inf")) for start in start_s)
+lengths_2, parents_2 = dijkstra(
+    start=end, neighbors=lambda n: neighbors(grid, n, False), cost=lambda lhs, rhs: 1
+)
+answer_2 = min(lengths_2.get(start, float("inf")) for start in start_s)
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2022/day13.py
+++ b/src/holt59/aoc/2022/day13.py
@@ -1,8 +1,11 @@
 import json
+import sys
 from functools import cmp_to_key
-from typing import Any, Iterator, TypeAlias, cast
+from typing import TypeAlias, cast

-from ..base import BaseSolver
+blocks = sys.stdin.read().strip().split("\n\n")
+
+pairs = [tuple(json.loads(p) for p in block.split("\n")) for block in blocks]

 Packet: TypeAlias = list[int | list["Packet"]]

@@ -25,18 +28,14 @@ def compare(lhs: Packet, rhs: Packet) -> int:
    return len(rhs) - len(lhs)


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        blocks = input.split("\n\n")
-        pairs = [tuple(json.loads(p) for p in block.split("\n")) for block in blocks]
+answer_1 = sum(i + 1 for i, (lhs, rhs) in enumerate(pairs) if compare(lhs, rhs) > 0)
+print(f"answer_1 is {answer_1}")

-        yield sum(i + 1 for i, (lhs, rhs) in enumerate(pairs) if compare(lhs, rhs) > 0)
+dividers = [[[2]], [[6]]]

-        dividers = [[[2]], [[6]]]
+packets = [packet for packets in pairs for packet in packets]
+packets.extend(dividers)
+packets = list(reversed(sorted(packets, key=cmp_to_key(compare))))

-        packets = [packet for packets in pairs for packet in packets]
-        packets.extend(dividers)
-        packets = list(reversed(sorted(packets, key=cmp_to_key(compare))))
-
-        d_index = [packets.index(d) + 1 for d in dividers]
-        yield d_index[0] * d_index[1]
+d_index = [packets.index(d) + 1 for d in dividers]
+print(f"answer 2 is {d_index[0] * d_index[1]}")
--- a/src/holt59/aoc/2022/day14.py
+++ b/src/holt59/aoc/2022/day14.py
@@ -1,7 +1,6 @@
+import sys
 from enum import Enum, auto
-from typing import Any, Callable, Iterator, cast
-
-from ..base import BaseSolver
+from typing import Callable, cast


 class Cell(Enum):
@@ -13,6 +12,26 @@ class Cell(Enum):
        return {Cell.AIR: ".", Cell.ROCK: "#", Cell.SAND: "O"}[self]


+def print_blocks(blocks: dict[tuple[int, int], Cell]):
+    """
+    Print the given set of blocks on a grid.
+
+    Args:
+        blocks: Set of blocks to print.
+    """
+    x_min, y_min, x_max, y_max = (
+        min(x for x, _ in blocks),
+        0,
+        max(x for x, _ in blocks),
+        max(y for _, y in blocks),
+    )
+
+    for y in range(y_min, y_max + 1):
+        print(
+            "".join(str(blocks.get((x, y), Cell.AIR)) for x in range(x_min, x_max + 1))
+        )
+
+
 def flow(
    blocks: dict[tuple[int, int], Cell],
    stop_fn: Callable[[int, int], bool],
@@ -65,82 +84,57 @@ def flow(

 # === inputs ===

+lines = sys.stdin.read().splitlines()

-class Solver(BaseSolver):
-    def print_blocks(self, name: str, blocks: dict[tuple[int, int], Cell]):
-        """
-        Print the given set of blocks on a grid.
+paths: list[list[tuple[int, int]]] = []
+for line in lines:
+    parts = line.split(" -> ")
+    paths.append(
+        [
+            cast(tuple[int, int], tuple(int(c.strip()) for c in part.split(",")))
+            for part in parts
+        ]
+    )

-        Args:
-            blocks: Set of blocks to print.
-        """
-        if not self.files:
-            return

-        x_min, y_min, x_max, y_max = (
-            min(x for x, _ in blocks),
-            0,
-            max(x for x, _ in blocks),
-            max(y for _, y in blocks),
-        )
+blocks: dict[tuple[int, int], Cell] = {}
+for path in paths:
+    for start, end in zip(path[:-1], path[1:]):
+        x_start = min(start[0], end[0])
+        x_end = max(start[0], end[0]) + 1
+        y_start = min(start[1], end[1])
+        y_end = max(start[1], end[1]) + 1

-        self.files.create(
-            f"blocks_{name}.txt",
-            "\n".join(
-                "".join(
-                    str(blocks.get((x, y), Cell.AIR)) for x in range(x_min, x_max + 1)
-                )
-                for y in range(y_min, y_max + 1)
-            ).encode(),
-            True,
-        )
+        for x in range(x_start, x_end):
+            for y in range(y_start, y_end):
+                blocks[x, y] = Cell.ROCK

-    def solve(self, input: str) -> Iterator[Any]:
-        lines = [line.strip() for line in input.splitlines()]
+print_blocks(blocks)
+print()

-        paths: list[list[tuple[int, int]]] = []
-        for line in lines:
-            parts = line.split(" -> ")
-            paths.append(
-                [
-                    cast(
-                        tuple[int, int], tuple(int(c.strip()) for c in part.split(","))
-                    )
-                    for part in parts
-                ]
-            )
+x_min, y_min, x_max, y_max = (
+    min(x for x, _ in blocks),
+    0,
+    max(x for x, _ in blocks),
+    max(y for _, y in blocks),
+)

-        blocks: dict[tuple[int, int], Cell] = {}
-        for path in paths:
-            for start, end in zip(path[:-1], path[1:]):
-                x_start = min(start[0], end[0])
-                x_end = max(start[0], end[0]) + 1
-                y_start = min(start[1], end[1])
-                y_end = max(start[1], end[1]) + 1
+# === part 1 ===

-                for x in range(x_start, x_end):
-                    for y in range(y_start, y_end):
-                        blocks[x, y] = Cell.ROCK
+blocks_1 = flow(
+    blocks.copy(), stop_fn=lambda x, y: y > y_max, fill_fn=lambda x, y: Cell.AIR
+)
+print_blocks(blocks_1)
+print(f"answer 1 is {sum(v == Cell.SAND for v in blocks_1.values())}")
+print()

-        self.print_blocks("start", blocks)
+# === part 2 ===

-        y_max = max(y for _, y in blocks)
-
-        # === part 1 ===
-
-        blocks_1 = flow(
-            blocks.copy(), stop_fn=lambda x, y: y > y_max, fill_fn=lambda x, y: Cell.AIR
-        )
-        self.print_blocks("part1", blocks_1)
-        yield sum(v == Cell.SAND for v in blocks_1.values())
-
-        # === part 2 ===
-
-        blocks_2 = flow(
-            blocks.copy(),
-            stop_fn=lambda x, y: x == 500 and y == 0,
-            fill_fn=lambda x, y: Cell.AIR if y < y_max + 2 else Cell.ROCK,
-        )
-        blocks_2[500, 0] = Cell.SAND
-        self.print_blocks("part2", blocks_2)
-        yield sum(v == Cell.SAND for v in blocks_2.values())
+blocks_2 = flow(
+    blocks.copy(),
+    stop_fn=lambda x, y: x == 500 and y == 0,
+    fill_fn=lambda x, y: Cell.AIR if y < y_max + 2 else Cell.ROCK,
+)
+blocks_2[500, 0] = Cell.SAND
+print_blocks(blocks_2)
+print(f"answer 2 is {sum(v == Cell.SAND for v in blocks_2.values())}")
--- a/src/holt59/aoc/2022/day15.py
+++ b/src/holt59/aoc/2022/day15.py
@@ -1,4 +1,4 @@
-import itertools as it
+import sys
 from typing import Any, Iterator

 import numpy as np
@@ -21,7 +21,9 @@ class Solver(BaseSolver):
            no_beacons_row_l.append(sx + np.arange(0, d - abs(sy - row) + 1))  # type: ignore

        beacons_at_row = set(bx for (bx, by) in sensor_to_beacon.values() if by == row)
-        no_beacons_row = set(it.chain(*no_beacons_row_l)).difference(beacons_at_row)  # type: ignore
+        no_beacons_row = set(np.concatenate(no_beacons_row_l)).difference(
+            beacons_at_row
+        )  # type: ignore

        return len(no_beacons_row)

@@ -60,9 +62,8 @@ class Solver(BaseSolver):
        for (sx, sy), (bx, by) in sensor_to_beacon.items():
            d = abs(sx - bx) + abs(sy - by)
            m.add_constraint(
-                m.abs(x - sx) + m.abs(y - sy) >= d + 1,  # type: ignore
-                ctname=f"ct_{sx}_{sy}",
-            )
+                m.abs(x - sx) + m.abs(y - sy) >= d + 1, ctname=f"ct_{sx}_{sy}"
+            )  # type: ignore

        m.set_objective("min", x + y)

@@ -91,5 +92,5 @@ class Solver(BaseSolver):

        # x, y, a2 = part2_cplex(sensor_to_beacon, xy_max)
        x, y, a2 = self.part2_intervals(sensor_to_beacon, xy_max)
-        self.logger.info(f"answer 2 is {a2} (x={x}, y={y})")
+        self.logger.info("answer 2 is {at} (x={x}, y={y})")
        yield a2
--- a/src/holt59/aoc/2022/day16.py
+++ b/src/holt59/aoc/2022/day16.py
@@ -3,10 +3,11 @@ from __future__ import annotations
 import heapq
 import itertools
 import re
+import sys
 from collections import defaultdict
-from typing import Any, FrozenSet, Iterator, NamedTuple
+from typing import FrozenSet, NamedTuple

-from ..base import BaseSolver
+from tqdm import tqdm


 class Pipe(NamedTuple):
@@ -35,8 +36,8 @@ def breadth_first_search(pipes: dict[str, Pipe], pipe: Pipe) -> dict[Pipe, int]:
    Runs a BFS from the given pipe and return the shortest distance (in term of hops)
    to all other pipes.
    """
-    queue = [(0, pipe)]
-    visited: set[Pipe] = set()
+    queue = [(0, pipe_1)]
+    visited = set()
    distances: dict[Pipe, int] = {}

    while len(distances) < len(pipes):
@@ -60,100 +61,98 @@ def update_with_better(
    node_at_times[flowing] = max(node_at_times[flowing], flow)


+def part_1(
+    start_pipe: Pipe,
+    max_time: int,
+    distances: dict[tuple[Pipe, Pipe], int],
+    relevant_pipes: FrozenSet[Pipe],
+):
+    node_at_times: dict[int, dict[Pipe, dict[FrozenSet[Pipe], int]]] = defaultdict(
+        lambda: defaultdict(lambda: defaultdict(lambda: 0))
+    )
+    node_at_times[0] = {start_pipe: {frozenset(): 0}}
+
+    for time in range(max_time):
+        for c_pipe, nodes in node_at_times[time].items():
+            for flowing, flow in nodes.items():
+                for target in relevant_pipes:
+                    distance = distances[c_pipe, target] + 1
+                    if time + distance >= max_time or target in flowing:
+                        continue
+
+                    update_with_better(
+                        node_at_times[time + distance][target],
+                        flow + sum(pipe.flow for pipe in flowing) * distance,
+                        flowing | {target},
+                    )
+
+                update_with_better(
+                    node_at_times[max_time][c_pipe],
+                    flow + sum(pipe.flow for pipe in flowing) * (max_time - time),
+                    flowing,
+                )
+
+    return max(
+        flow
+        for nodes_of_pipe in node_at_times[max_time].values()
+        for flow in nodes_of_pipe.values()
+    )
+
+
+def part_2(
+    start_pipe: Pipe,
+    max_time: int,
+    distances: dict[tuple[Pipe, Pipe], int],
+    relevant_pipes: FrozenSet[Pipe],
+):
+    def compute(pipes_for_me: FrozenSet[Pipe]) -> int:
+        return part_1(start_pipe, max_time, distances, pipes_for_me) + part_1(
+            start_pipe, max_time, distances, relevant_pipes - pipes_for_me
+        )
+
+    combs = [
+        frozenset(relevant_pipes_1)
+        for r in range(2, len(relevant_pipes) // 2 + 1)
+        for relevant_pipes_1 in itertools.combinations(relevant_pipes, r)
+    ]
+
+    return max(compute(comb) for comb in tqdm(combs))
+
+
 # === MAIN ===


-class Solver(BaseSolver):
-    def part_1(
-        self,
-        start_pipe: Pipe,
-        max_time: int,
-        distances: dict[tuple[Pipe, Pipe], int],
-        relevant_pipes: FrozenSet[Pipe],
-    ):
-        node_at_times: dict[int, dict[Pipe, dict[FrozenSet[Pipe], int]]] = defaultdict(
-            lambda: defaultdict(lambda: defaultdict(lambda: 0))
-        )
-        node_at_times[0] = {start_pipe: {frozenset(): 0}}
+lines = sys.stdin.read().splitlines()

-        for time in range(max_time):
-            for c_pipe, nodes in node_at_times[time].items():
-                for flowing, flow in nodes.items():
-                    for target in relevant_pipes:
-                        distance = distances[c_pipe, target] + 1
-                        if time + distance >= max_time or target in flowing:
-                            continue

-                        update_with_better(
-                            node_at_times[time + distance][target],
-                            flow + sum(pipe.flow for pipe in flowing) * distance,
-                            flowing | {target},
-                        )
+pipes: dict[str, Pipe] = {}
+for line in lines:
+    r = re.match(
+        R"Valve ([A-Z]+) has flow rate=([0-9]+); tunnels? leads? to valves? (.+)",
+        line,
+    )
+    assert r

-                    update_with_better(
-                        node_at_times[max_time][c_pipe],
-                        flow + sum(pipe.flow for pipe in flowing) * (max_time - time),
-                        flowing,
-                    )
+    g = r.groups()

-        return max(
-            flow
-            for nodes_of_pipe in node_at_times[max_time].values()
-            for flow in nodes_of_pipe.values()
-        )
+    pipes[g[0]] = Pipe(g[0], int(g[1]), g[2].split(", "))

-    def part_2(
-        self,
-        start_pipe: Pipe,
-        max_time: int,
-        distances: dict[tuple[Pipe, Pipe], int],
-        relevant_pipes: FrozenSet[Pipe],
-    ):
-        def compute(pipes_for_me: FrozenSet[Pipe]) -> int:
-            return self.part_1(
-                start_pipe, max_time, distances, pipes_for_me
-            ) + self.part_1(
-                start_pipe, max_time, distances, relevant_pipes - pipes_for_me
-            )
+# compute distances from one valve to any other
+distances: dict[tuple[Pipe, Pipe], int] = {}
+for pipe_1 in pipes.values():
+    distances.update(
+        {
+            (pipe_1, pipe_2): distance
+            for pipe_2, distance in breadth_first_search(pipes, pipe_1).items()
+        }
+    )

-        combs = [
-            frozenset(relevant_pipes_1)
-            for r in range(2, len(relevant_pipes) // 2 + 1)
-            for relevant_pipes_1 in itertools.combinations(relevant_pipes, r)
-        ]
+# valves with flow
+relevant_pipes = frozenset(pipe for pipe in pipes.values() if pipe.flow > 0)

-        return max(compute(comb) for comb in self.progress.wrap(combs))

-    def solve(self, input: str) -> Iterator[Any]:
-        lines = [line.strip() for line in input.splitlines()]
+# 1651, 1653
+print(part_1(pipes["AA"], 30, distances, relevant_pipes))

-        pipes: dict[str, Pipe] = {}
-        for line in lines:
-            r = re.match(
-                R"Valve ([A-Z]+) has flow rate=([0-9]+); tunnels? leads? to valves? (.+)",
-                line,
-            )
-            assert r
-
-            g = r.groups()
-
-            pipes[g[0]] = Pipe(g[0], int(g[1]), g[2].split(", "))
-
-        # compute distances from one valve to any other
-        distances: dict[tuple[Pipe, Pipe], int] = {}
-        for pipe_1 in pipes.values():
-            distances.update(
-                {
-                    (pipe_1, pipe_2): distance
-                    for pipe_2, distance in breadth_first_search(pipes, pipe_1).items()
-                }
-            )
-
-        # valves with flow
-        relevant_pipes = frozenset(pipe for pipe in pipes.values() if pipe.flow > 0)
-
-        # 1651, 1653
-        yield self.part_1(pipes["AA"], 30, distances, relevant_pipes)
-
-        # 1707, 2223
-        yield self.part_2(pipes["AA"], 26, distances, relevant_pipes)
+# 1707, 2223
+print(part_2(pipes["AA"], 26, distances, relevant_pipes))
--- a/src/holt59/aoc/2022/day17.py
+++ b/src/holt59/aoc/2022/day17.py
@@ -1,16 +1,23 @@
-from typing import Any, Iterator, Sequence, TypeAlias, TypeVar
+import sys
+from typing import Sequence, TypeVar

 import numpy as np
-from numpy.typing import NDArray
-
-from ..base import BaseSolver

 T = TypeVar("T")

-Tower: TypeAlias = NDArray[np.bool]
+
+def print_tower(tower: np.ndarray, out: str = "#"):
+    print("-" * (tower.shape[1] + 2))
+    non_empty = False
+    for row in reversed(range(1, tower.shape[0])):
+        if not non_empty and not tower[row, :].any():
+            continue
+        non_empty = True
+        print("|" + "".join(out if c else "." for c in tower[row, :]) + "|")
+    print("+" + "-" * tower.shape[1] + "+")


-def tower_height(tower: Tower) -> int:
+def tower_height(tower: np.ndarray) -> int:
    return int(tower.shape[0] - tower[::-1, :].argmax(axis=0).min() - 1)


@@ -38,8 +45,8 @@ def build_tower(
    n_rocks: int,
    jets: str,
    early_stop: bool = False,
-    init: Tower = np.ones(WIDTH, dtype=bool),
-) -> tuple[Tower, int, int, dict[int, int]]:
+    init: np.ndarray = np.ones(WIDTH, dtype=bool),
+) -> tuple[np.ndarray, int, int, dict[int, int]]:
    tower = EMPTY_BLOCKS.copy()
    tower[0, :] = init

@@ -88,24 +95,26 @@ def build_tower(
    return tower, rock_count, done_at.get((i_rock, i_jet), -1), heights


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        tower, *_ = build_tower(2022, input)
-        yield tower_height(tower)
+line = sys.stdin.read().strip()

-        TOTAL_ROCKS = 1_000_000_000_000
-        _tower_1, n_rocks_1, prev_1, heights_1 = build_tower(TOTAL_ROCKS, input, True)
-        assert prev_1 > 0
+tower, *_ = build_tower(2022, line)
+answer_1 = tower_height(tower)
+print(f"answer 1 is {answer_1}")

-        # 2767 1513
-        remaining_rocks = TOTAL_ROCKS - n_rocks_1
-        n_repeat_rocks = n_rocks_1 - prev_1
-        n_repeat_towers = remaining_rocks // n_repeat_rocks
+TOTAL_ROCKS = 1_000_000_000_000
+tower_1, n_rocks_1, prev_1, heights_1 = build_tower(TOTAL_ROCKS, line, True)
+assert prev_1 > 0

-        base_height = heights_1[prev_1]
-        repeat_height = heights_1[prev_1 + n_repeat_rocks - 1] - heights_1[prev_1]
-        remaining_height = (
-            heights_1[prev_1 + remaining_rocks % n_repeat_rocks] - heights_1[prev_1]
-        )
+# 2767 1513
+remaining_rocks = TOTAL_ROCKS - n_rocks_1
+n_repeat_rocks = n_rocks_1 - prev_1
+n_repeat_towers = remaining_rocks // n_repeat_rocks

-        yield base_height + (n_repeat_towers + 1) * repeat_height + remaining_height
+base_height = heights_1[prev_1]
+repeat_height = heights_1[prev_1 + n_repeat_rocks - 1] - heights_1[prev_1]
+remaining_height = (
+    heights_1[prev_1 + remaining_rocks % n_repeat_rocks] - heights_1[prev_1]
+)
+
+answer_2 = base_height + (n_repeat_towers + 1) * repeat_height + remaining_height
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2022/day18.py
+++ b/src/holt59/aoc/2022/day18.py
@@ -1,58 +1,50 @@
-from typing import Any, Iterator
+import sys

 import numpy as np

-from ..base import BaseSolver
+xyz = np.asarray(
+    [
+        tuple(int(x) for x in row.split(","))  # type: ignore
+        for row in sys.stdin.read().splitlines()
+    ]
+)

+xyz = xyz - xyz.min(axis=0) + 1

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        xyz = np.asarray(
-            [
-                tuple(int(x) for x in row.split(","))  # type: ignore
-                for row in input.splitlines()
-            ]
-        )
+cubes = np.zeros(xyz.max(axis=0) + 3, dtype=bool)
+cubes[xyz[:, 0], xyz[:, 1], xyz[:, 2]] = True

-        xyz = xyz - xyz.min(axis=0) + 1
+n_dims = len(cubes.shape)

-        cubes = np.zeros(xyz.max(axis=0) + 3, dtype=bool)
-        cubes[xyz[:, 0], xyz[:, 1], xyz[:, 2]] = True
+faces = [(-1, 0, 0), (1, 0, 0), (0, -1, 0), (0, 1, 0), (0, 0, -1), (0, 0, 1)]

-        faces = [(-1, 0, 0), (1, 0, 0), (0, -1, 0), (0, 1, 0), (0, 0, -1), (0, 0, 1)]
+answer_1 = sum(
+    1 for x, y, z in xyz for dx, dy, dz in faces if not cubes[x + dx, y + dy, z + dz]
+)
+print(f"answer 1 is {answer_1}")

-        yield sum(
-            1
-            for x, y, z in xyz
-            for dx, dy, dz in faces
-            if not cubes[x + dx, y + dy, z + dz]
-        )
+visited = np.zeros_like(cubes, dtype=bool)
+queue = [(0, 0, 0)]

-        visited = np.zeros_like(cubes, dtype=bool)
-        queue = [(0, 0, 0)]
+n_faces = 0
+while queue:
+    x, y, z = queue.pop(0)

-        n_faces = 0
-        while queue:
-            x, y, z = queue.pop(0)
+    if visited[x, y, z]:
+        continue

-            if visited[x, y, z]:
-                continue
+    visited[x, y, z] = True

-            visited[x, y, z] = True
+    for dx, dy, dz in faces:
+        nx, ny, nz = x + dx, y + dy, z + dz
+        if not all(n >= 0 and n < cubes.shape[i] for i, n in enumerate((nx, ny, nz))):
+            continue

-            for dx, dy, dz in faces:
-                nx, ny, nz = x + dx, y + dy, z + dz
-                if not all(
-                    n >= 0 and n < cubes.shape[i] for i, n in enumerate((nx, ny, nz))
-                ):
-                    continue
+        if visited[nx, ny, nz]:
+            continue

-                if visited[nx, ny, nz]:
-                    continue
-
-                if cubes[nx, ny, nz]:
-                    n_faces += 1
-                else:
-                    queue.append((nx, ny, nz))
-
-        yield n_faces
+        if cubes[nx, ny, nz]:
+            n_faces += 1
+        else:
+            queue.append((nx, ny, nz))
+print(f"answer 2 is {n_faces}")
--- a/src/holt59/aoc/2022/day19.py
+++ b/src/holt59/aoc/2022/day19.py
@@ -1,11 +1,10 @@
-from typing import Any, Iterator, Literal
+import sys
+from typing import Any, Literal

 import numpy as np
 import parse  # pyright: ignore[reportMissingTypeStubs]
 from numpy.typing import NDArray

-from ..base import BaseSolver
-
 Reagent = Literal["ore", "clay", "obsidian", "geode"]
 REAGENTS: tuple[Reagent, ...] = (
    "ore",
@@ -63,6 +62,29 @@ def dominates(lhs: State, rhs: State):
    )


+lines = sys.stdin.read().splitlines()
+
+blueprints: list[dict[Reagent, IntOfReagent]] = []
+for line in lines:
+    r: list[int] = parse.parse(  # type: ignore
+        "Blueprint {}: "
+        "Each ore robot costs {:d} ore. "
+        "Each clay robot costs {:d} ore. "
+        "Each obsidian robot costs {:d} ore and {:d} clay. "
+        "Each geode robot costs {:d} ore and {:d} obsidian.",
+        line,
+    )
+
+    blueprints.append(
+        {
+            "ore": {"ore": r[1]},
+            "clay": {"ore": r[2]},
+            "obsidian": {"ore": r[3], "clay": r[4]},
+            "geode": {"ore": r[5], "obsidian": r[6]},
+        }
+    )
+
+
 def run(blueprint: dict[Reagent, dict[Reagent, int]], max_time: int) -> int:
    # since we can only build one robot per time, we do not need more than X robots
    # of type K where X is the maximum number of K required among all robots, e.g.,
@@ -151,31 +173,11 @@ def run(blueprint: dict[Reagent, dict[Reagent, int]], max_time: int) -> int:
    return max(state.reagents["geode"] for state in state_after_t[max_time])


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        blueprints: list[dict[Reagent, IntOfReagent]] = []
-        for line in input.splitlines():
-            r: list[int] = parse.parse(  # type: ignore
-                "Blueprint {}: "
-                "Each ore robot costs {:d} ore. "
-                "Each clay robot costs {:d} ore. "
-                "Each obsidian robot costs {:d} ore and {:d} clay. "
-                "Each geode robot costs {:d} ore and {:d} obsidian.",
-                line,
-            )
+answer_1 = sum(
+    (i_blueprint + 1) * run(blueprint, 24)
+    for i_blueprint, blueprint in enumerate(blueprints)
+)
+print(f"answer 1 is {answer_1}")

-            blueprints.append(
-                {
-                    "ore": {"ore": r[1]},
-                    "clay": {"ore": r[2]},
-                    "obsidian": {"ore": r[3], "clay": r[4]},
-                    "geode": {"ore": r[5], "obsidian": r[6]},
-                }
-            )
-
-        yield sum(
-            (i_blueprint + 1) * run(blueprint, 24)
-            for i_blueprint, blueprint in enumerate(blueprints)
-        )
-
-        yield (run(blueprints[0], 32) * run(blueprints[1], 32) * run(blueprints[2], 32))
+answer_2 = run(blueprints[0], 32) * run(blueprints[1], 32) * run(blueprints[2], 32)
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2022/day2.py
+++ b/src/holt59/aoc/2022/day2.py
@@ -1,6 +1,4 @@
-from typing import Any, Iterator
-
-from ..base import BaseSolver
+import sys


 def score_1(ux: int, vx: int) -> int:
@@ -35,23 +33,21 @@ def score_2(ux: int, vx: int) -> int:
    return (ux + vx - 1) % 3 + 1 + vx * 3


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = input.splitlines()
+lines = sys.stdin.readlines()

-        # the solution relies on replacing rock / paper / scissor by values 0 / 1 / 2 and using
-        # modulo-3 arithmetic
-        #
-        # in modulo-3 arithmetic, the winning move is 1 + the opponent move (e.g., winning move
-        # if opponent plays 0 is 1, or 0 if opponent plays 2 (0 = (2 + 1 % 3)))
-        #
+# the solution relies on replacing rock / paper / scissor by values 0 / 1 / 2 and using
+# modulo-3 arithmetic
+#
+# in modulo-3 arithmetic, the winning move is 1 + the opponent move (e.g., winning move
+# if opponent plays 0 is 1, or 0 if opponent plays 2 (0 = (2 + 1 % 3)))
+#

-        # we read the lines in a Nx2 in array with value 0/1/2 instead of A/B/C or X/Y/Z for
-        # easier manipulation
-        values = [(ord(row[0]) - ord("A"), ord(row[2]) - ord("X")) for row in lines]
+# we read the lines in a Nx2 in array with value 0/1/2 instead of A/B/C or X/Y/Z for
+# easier manipulation
+values = [(ord(row[0]) - ord("A"), ord(row[2]) - ord("X")) for row in lines]

-        # part 1 - 13526
-        yield sum(score_1(*v) for v in values)
+# part 1 - 13526
+print(f"answer 1 is {sum(score_1(*v) for v in values)}")

-        # part 2 - 14204
-        yield sum(score_2(*v) for v in values)
+# part 2 - 14204
+print(f"answer 2 is {sum(score_2(*v) for v in values)}")
--- a/src/holt59/aoc/2022/day20.py
+++ b/src/holt59/aoc/2022/day20.py
@@ -1,8 +1,6 @@
 from __future__ import annotations

-from typing import Any, Iterator
-
-from ..base import BaseSolver
+import sys


 class Number:
@@ -67,9 +65,10 @@ def decrypt(numbers: list[Number], key: int, rounds: int) -> int:
    )


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        numbers = [Number(int(x)) for x in input.splitlines()]
+numbers = [Number(int(x)) for i, x in enumerate(sys.stdin.readlines())]

-        yield decrypt(numbers, 1, 1)
-        yield decrypt(numbers, 811589153, 10)
+answer_1 = decrypt(numbers, 1, 1)
+print(f"answer 1 is {answer_1}")
+
+answer_2 = decrypt(numbers, 811589153, 10)
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2022/day21.py
+++ b/src/holt59/aoc/2022/day21.py
@@ -1,7 +1,6 @@
 import operator
-from typing import Any, Callable, Iterator
-
-from ..base import BaseSolver
+import sys
+from typing import Callable


 def compute(monkeys: dict[str, int | tuple[str, str, str]], monkey: str) -> int:
@@ -78,31 +77,31 @@ def invert(
    return monkeys


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = [line.strip() for line in input.splitlines()]
+lines = sys.stdin.read().splitlines()

-        monkeys: dict[str, int | tuple[str, str, str]] = {}
+monkeys: dict[str, int | tuple[str, str, str]] = {}

-        op_monkeys: set[str] = set()
+op_monkeys: set[str] = set()

-        for line in lines:
-            parts = line.split(":")
-            name = parts[0].strip()
+for line in lines:
+    parts = line.split(":")
+    name = parts[0].strip()

-            try:
-                value = int(parts[1].strip())
-                monkeys[name] = value
-            except ValueError:
-                op1, ope, op2 = parts[1].strip().split()
-                monkeys[name] = (op1, ope, op2)
+    try:
+        value = int(parts[1].strip())
+        monkeys[name] = value
+    except ValueError:
+        op1, ope, op2 = parts[1].strip().split()
+        monkeys[name] = (op1, ope, op2)

-                op_monkeys.add(name)
+        op_monkeys.add(name)

-        yield compute(monkeys.copy(), "root")

-        # assume the second operand of 'root' can be computed, and the first one depends on
-        # humn, which is the case is my input and the test input
-        assert isinstance(monkeys["root"], tuple)
-        p1, _, p2 = monkeys["root"]  # type: ignore
-        yield compute(invert(monkeys, "humn", compute(monkeys.copy(), p2)), "humn")
+answer_1 = compute(monkeys.copy(), "root")
+print(f"answer 1 is {answer_1}")
+
+# assume the second operand of 'root' can be computed, and the first one depends on
+# humn, which is the case is my input and the test input
+p1, _, p2 = monkeys["root"]  # type: ignore
+answer_2 = compute(invert(monkeys, "humn", compute(monkeys.copy(), p2)), "humn")
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2022/day22.py
+++ b/src/holt59/aoc/2022/day22.py
@@ -1,243 +1,223 @@
 import re
-from typing import Any, Callable, Iterator
+import sys
+from typing import Callable

 import numpy as np

-from ..base import BaseSolver
-
 VOID, EMPTY, WALL = 0, 1, 2
 TILE_FROM_CHAR = {" ": VOID, ".": EMPTY, "#": WALL}

 SCORES = {"E": 0, "S": 1, "W": 2, "N": 3}


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        board_map_s, direction_s = input.split("\n\n")
+board_map_s, direction_s = sys.stdin.read().split("\n\n")

-        # board
-        board_lines = board_map_s.splitlines()
-        max_line = max(len(line) for line in board_lines)
-        board = np.array(
-            [
-                [TILE_FROM_CHAR[c] for c in row] + [VOID] * (max_line - len(row))
-                for row in board_map_s.splitlines()
-            ]
-        )
+# board
+board_lines = board_map_s.splitlines()
+max_line = max(len(line) for line in board_lines)
+board = np.array(
+    [
+        [TILE_FROM_CHAR[c] for c in row] + [VOID] * (max_line - len(row))
+        for row in board_map_s.splitlines()
+    ]
+)

-        directions = [
-            int(p1) if p2 else p1
-            for p1, p2 in re.findall(R"(([0-9])+|L|R)", direction_s)
-        ]
+directions = [
+    int(p1) if p2 else p1 for p1, p2 in re.findall(R"(([0-9])+|L|R)", direction_s)
+]

-        # find on each row and column the first and last non-void
-        row_first_non_void = np.argmax(board != VOID, axis=1)
-        row_last_non_void = (
-            board.shape[1] - np.argmax(board[:, ::-1] != VOID, axis=1) - 1
-        )
-        col_first_non_void = np.argmax(board != VOID, axis=0)
-        col_last_non_void = (
-            board.shape[0] - np.argmax(board[::-1, :] != VOID, axis=0) - 1
-        )

-        faces = np.zeros_like(board)
-        size = np.gcd(board.shape[0], board.shape[1])
-        for row in range(0, board.shape[0], size):
-            for col in range(row_first_non_void[row], row_last_non_void[row], size):
-                faces[row : row + size, col : col + size] = faces.max() + 1
+# find on each row and column the first and last non-void
+row_first_non_void = np.argmax(board != VOID, axis=1)
+row_last_non_void = board.shape[1] - np.argmax(board[:, ::-1] != VOID, axis=1) - 1
+col_first_non_void = np.argmax(board != VOID, axis=0)
+col_last_non_void = board.shape[0] - np.argmax(board[::-1, :] != VOID, axis=0) - 1

-        SIZE = np.gcd(*board.shape)

-        # TODO: deduce this from the actual cube...
-        faces_wrap: dict[int, dict[str, Callable[[int, int], tuple[int, int, str]]]]
+faces = np.zeros_like(board)
+size = np.gcd(board.shape[0], board.shape[1])
+for row in range(0, board.shape[0], size):
+    for col in range(row_first_non_void[row], row_last_non_void[row], size):
+        faces[row : row + size, col : col + size] = faces.max() + 1

-        if board.shape == (12, 16):  # example
-            faces_wrap = {
-                1: {
-                    "W": lambda y, x: (4, 4 + y, "S"),  # 3N
-                    "N": lambda y, x: (4, 11 - x, "S"),  # 2N
-                    "E": lambda y, x: (11 - y, 15, "W"),  # 6E
-                },
-                2: {
-                    "W": lambda y, x: (11, 19 - y, "N"),  # 6S
-                    "N": lambda y, x: (0, 11 - y, "S"),  # 1N
-                    "S": lambda y, x: (11, 11 - x, "N"),  # 5S
-                },
-                3: {
-                    "N": lambda y, x: (x - 4, 8, "E"),  # 1W
-                    "S": lambda y, x: (15 - x, 8, "E"),  # 5W
-                },
-                4: {"E": lambda y, x: (8, 19 - y, "S")},  # 6N
-                5: {
-                    "W": lambda y, x: (7, 15 - y, "N"),  # 3S
-                    "S": lambda y, x: (7, 11 - x, "N"),  # 2S
-                },
-                6: {
-                    "N": lambda y, x: (19 - x, 11, "W"),  # 4E
-                    "E": lambda y, x: (11 - y, 11, "W"),  # 1E
-                    "S": lambda y, x: (19 - x, 0, "E"),  # 2W
-                },
-            }
+SIZE = np.gcd(*board.shape)

+# TODO: deduce this from the actual cube...
+faces_wrap: dict[int, dict[str, Callable[[int, int], tuple[int, int, str]]]]
+
+if board.shape == (12, 16):  # example
+    faces_wrap = {
+        1: {
+            "W": lambda y, x: (4, 4 + y, "S"),  # 3N
+            "N": lambda y, x: (4, 11 - x, "S"),  # 2N
+            "E": lambda y, x: (11 - y, 15, "W"),  # 6E
+        },
+        2: {
+            "W": lambda y, x: (11, 19 - y, "N"),  # 6S
+            "N": lambda y, x: (0, 11 - y, "S"),  # 1N
+            "S": lambda y, x: (11, 11 - x, "N"),  # 5S
+        },
+        3: {
+            "N": lambda y, x: (x - 4, 8, "E"),  # 1W
+            "S": lambda y, x: (15 - x, 8, "E"),  # 5W
+        },
+        4: {"E": lambda y, x: (8, 19 - y, "S")},  # 6N
+        5: {
+            "W": lambda y, x: (7, 15 - y, "N"),  # 3S
+            "S": lambda y, x: (7, 11 - x, "N"),  # 2S
+        },
+        6: {
+            "N": lambda y, x: (19 - x, 11, "W"),  # 4E
+            "E": lambda y, x: (11 - y, 11, "W"),  # 1E
+            "S": lambda y, x: (19 - x, 0, "E"),  # 2W
+        },
+    }
+
+else:
+    faces_wrap = {
+        1: {
+            "W": lambda y, x: (3 * SIZE - y - 1, 0, "E"),  # 4W
+            "N": lambda y, x: (2 * SIZE + x, 0, "E"),  # 6W
+        },
+        2: {
+            "N": lambda y, x: (4 * SIZE - 1, x - 2 * SIZE, "N"),  # 6S
+            "E": lambda y, x: (3 * SIZE - y - 1, 2 * SIZE - 1, "W"),  # 5E
+            "S": lambda y, x: (x - SIZE, 2 * SIZE - 1, "W"),  # 3E
+        },
+        3: {
+            "W": lambda y, x: (2 * SIZE, y - SIZE, "S"),  # 4N
+            "E": lambda y, x: (SIZE - 1, SIZE + y, "N"),  # 2S
+        },
+        4: {
+            "W": lambda y, x: (3 * SIZE - y - 1, SIZE, "E"),  # 1W
+            "N": lambda y, x: (SIZE + x, SIZE, "E"),  # 3W
+        },
+        5: {
+            "E": lambda y, x: (3 * SIZE - y - 1, 3 * SIZE - 1, "W"),  # 2E
+            "S": lambda y, x: (2 * SIZE + x, SIZE - 1, "W"),  # 6E
+        },
+        6: {
+            "W": lambda y, x: (0, y - 2 * SIZE, "S"),  # 1N
+            "E": lambda y, x: (3 * SIZE - 1, y - 2 * SIZE, "N"),  # 5S
+            "S": lambda y, x: (0, x + 2 * SIZE, "S"),  # 2N
+        },
+    }
+
+
+def wrap_part_1(y0: int, x0: int, r0: str) -> tuple[int, int, str]:
+    if r0 == "E":
+        return y0, row_first_non_void[y0], r0
+    elif r0 == "S":
+        return col_first_non_void[x0], x0, r0
+    elif r0 == "W":
+        return y0, row_last_non_void[y0], r0
+    elif r0 == "N":
+        return col_last_non_void[x0], x0, r0
+
+    assert False
+
+
+def wrap_part_2(y0: int, x0: int, r0: str) -> tuple[int, int, str]:
+    cube = faces[y0, x0]
+    assert r0 in faces_wrap[cube]
+    return faces_wrap[cube][r0](y0, x0)
+
+
+def run(wrap: Callable[[int, int, str], tuple[int, int, str]]) -> tuple[int, int, str]:
+    y0 = 0
+    x0 = np.where(board[0] == EMPTY)[0][0]
+    r0 = "E"
+
+    for direction in directions:
+        if isinstance(direction, int):
+            while direction > 0:
+                if r0 == "E":
+                    xi = np.where(board[y0, x0 + 1 : x0 + direction + 1] == WALL)[0]
+                    if len(xi):
+                        x0 = x0 + xi[0]
+                        direction = 0
+                    elif (
+                        x0 + direction < board.shape[1]
+                        and board[y0, x0 + direction] == EMPTY
+                    ):
+                        x0 = x0 + direction
+                        direction = 0
+                    else:
+                        y0_t, x0_t, r0_t = wrap(y0, x0, r0)
+                        if board[y0_t, x0_t] == WALL:
+                            x0 = row_last_non_void[y0]
+                            direction = 0
+                        else:
+                            direction = direction - (row_last_non_void[y0] - x0) - 1
+                            y0, x0, r0 = y0_t, x0_t, r0_t
+                elif r0 == "S":
+                    yi = np.where(board[y0 + 1 : y0 + direction + 1, x0] == WALL)[0]
+                    if len(yi):
+                        y0 = y0 + yi[0]
+                        direction = 0
+                    elif (
+                        y0 + direction < board.shape[0]
+                        and board[y0 + direction, x0] == EMPTY
+                    ):
+                        y0 = y0 + direction
+                        direction = 0
+                    else:
+                        y0_t, x0_t, r0_t = wrap(y0, x0, r0)
+                        if board[y0_t, x0_t] == WALL:
+                            y0 = col_last_non_void[x0]
+                            direction = 0
+                        else:
+                            direction = direction - (col_last_non_void[x0] - y0) - 1
+                            y0, x0, r0 = y0_t, x0_t, r0_t
+                elif r0 == "W":
+                    left = max(x0 - direction - 1, 0)
+                    xi = np.where(board[y0, left:x0] == WALL)[0]
+                    if len(xi):
+                        x0 = left + xi[-1] + 1
+                        direction = 0
+                    elif x0 - direction >= 0 and board[y0, x0 - direction] == EMPTY:
+                        x0 = x0 - direction
+                        direction = 0
+                    else:
+                        y0_t, x0_t, r0_t = wrap(y0, x0, r0)
+                        if board[y0_t, x0_t] == WALL:
+                            x0 = row_first_non_void[y0]
+                            direction = 0
+                        else:
+                            direction = direction - (x0 - row_first_non_void[y0]) - 1
+                            y0, x0, r0 = y0_t, x0_t, r0_t
+                elif r0 == "N":
+                    top = max(y0 - direction - 1, 0)
+                    yi = np.where(board[top:y0, x0] == WALL)[0]
+                    if len(yi):
+                        y0 = top + yi[-1] + 1
+                        direction = 0
+                    elif y0 - direction >= 0 and board[y0 - direction, x0] == EMPTY:
+                        y0 = y0 - direction
+                        direction = 0
+                    else:
+                        y0_t, x0_t, r0_t = wrap(y0, x0, r0)
+                        if board[y0_t, x0_t] == WALL:
+                            y0 = col_first_non_void[x0]
+                            direction = 0
+                        else:
+                            direction = direction - (y0 - col_first_non_void[x0]) - 1
+                            y0, x0, r0 = y0_t, x0_t, r0_t
        else:
-            faces_wrap = {
-                1: {
-                    "W": lambda y, x: (3 * SIZE - y - 1, 0, "E"),  # 4W
-                    "N": lambda y, x: (2 * SIZE + x, 0, "E"),  # 6W
-                },
-                2: {
-                    "N": lambda y, x: (4 * SIZE - 1, x - 2 * SIZE, "N"),  # 6S
-                    "E": lambda y, x: (3 * SIZE - y - 1, 2 * SIZE - 1, "W"),  # 5E
-                    "S": lambda y, x: (x - SIZE, 2 * SIZE - 1, "W"),  # 3E
-                },
-                3: {
-                    "W": lambda y, x: (2 * SIZE, y - SIZE, "S"),  # 4N
-                    "E": lambda y, x: (SIZE - 1, SIZE + y, "N"),  # 2S
-                },
-                4: {
-                    "W": lambda y, x: (3 * SIZE - y - 1, SIZE, "E"),  # 1W
-                    "N": lambda y, x: (SIZE + x, SIZE, "E"),  # 3W
-                },
-                5: {
-                    "E": lambda y, x: (3 * SIZE - y - 1, 3 * SIZE - 1, "W"),  # 2E
-                    "S": lambda y, x: (2 * SIZE + x, SIZE - 1, "W"),  # 6E
-                },
-                6: {
-                    "W": lambda y, x: (0, y - 2 * SIZE, "S"),  # 1N
-                    "E": lambda y, x: (3 * SIZE - 1, y - 2 * SIZE, "N"),  # 5S
-                    "S": lambda y, x: (0, x + 2 * SIZE, "S"),  # 2N
-                },
-            }
+            r0 = {
+                "E": {"L": "N", "R": "S"},
+                "N": {"L": "W", "R": "E"},
+                "W": {"L": "S", "R": "N"},
+                "S": {"L": "E", "R": "W"},
+            }[r0][direction]

-        def wrap_part_1(y0: int, x0: int, r0: str) -> tuple[int, int, str]:
-            if r0 == "E":
-                return y0, row_first_non_void[y0], r0
-            elif r0 == "S":
-                return col_first_non_void[x0], x0, r0
-            elif r0 == "W":
-                return y0, row_last_non_void[y0], r0
-            elif r0 == "N":
-                return col_last_non_void[x0], x0, r0
+    return y0, x0, r0

-            assert False

-        def wrap_part_2(y0: int, x0: int, r0: str) -> tuple[int, int, str]:
-            cube = faces[y0, x0]
-            assert r0 in faces_wrap[cube]
-            return faces_wrap[cube][r0](y0, x0)
+y1, x1, r1 = run(wrap_part_1)
+answer_1 = 1000 * (1 + y1) + 4 * (1 + x1) + SCORES[r1]
+print(f"answer 1 is {answer_1}")

-        def run(
-            wrap: Callable[[int, int, str], tuple[int, int, str]],
-        ) -> tuple[int, int, str]:
-            y0 = 0
-            x0 = np.where(board[0] == EMPTY)[0][0]
-            r0 = "E"
-
-            for direction in directions:
-                if isinstance(direction, int):
-                    while direction > 0:
-                        if r0 == "E":
-                            xi = np.where(
-                                board[y0, x0 + 1 : x0 + direction + 1] == WALL
-                            )[0]
-                            if len(xi):
-                                x0 = x0 + xi[0]
-                                direction = 0
-                            elif (
-                                x0 + direction < board.shape[1]
-                                and board[y0, x0 + direction] == EMPTY
-                            ):
-                                x0 = x0 + direction
-                                direction = 0
-                            else:
-                                y0_t, x0_t, r0_t = wrap(y0, x0, r0)
-                                if board[y0_t, x0_t] == WALL:
-                                    x0 = row_last_non_void[y0]
-                                    direction = 0
-                                else:
-                                    direction = (
-                                        direction - (row_last_non_void[y0] - x0) - 1
-                                    )
-                                    y0, x0, r0 = y0_t, x0_t, r0_t
-                        elif r0 == "S":
-                            yi = np.where(
-                                board[y0 + 1 : y0 + direction + 1, x0] == WALL
-                            )[0]
-                            if len(yi):
-                                y0 = y0 + yi[0]
-                                direction = 0
-                            elif (
-                                y0 + direction < board.shape[0]
-                                and board[y0 + direction, x0] == EMPTY
-                            ):
-                                y0 = y0 + direction
-                                direction = 0
-                            else:
-                                y0_t, x0_t, r0_t = wrap(y0, x0, r0)
-                                if board[y0_t, x0_t] == WALL:
-                                    y0 = col_last_non_void[x0]
-                                    direction = 0
-                                else:
-                                    direction = (
-                                        direction - (col_last_non_void[x0] - y0) - 1
-                                    )
-                                    y0, x0, r0 = y0_t, x0_t, r0_t
-                        elif r0 == "W":
-                            left = max(x0 - direction - 1, 0)
-                            xi = np.where(board[y0, left:x0] == WALL)[0]
-                            if len(xi):
-                                x0 = left + xi[-1] + 1
-                                direction = 0
-                            elif (
-                                x0 - direction >= 0
-                                and board[y0, x0 - direction] == EMPTY
-                            ):
-                                x0 = x0 - direction
-                                direction = 0
-                            else:
-                                y0_t, x0_t, r0_t = wrap(y0, x0, r0)
-                                if board[y0_t, x0_t] == WALL:
-                                    x0 = row_first_non_void[y0]
-                                    direction = 0
-                                else:
-                                    direction = (
-                                        direction - (x0 - row_first_non_void[y0]) - 1
-                                    )
-                                    y0, x0, r0 = y0_t, x0_t, r0_t
-                        elif r0 == "N":
-                            top = max(y0 - direction - 1, 0)
-                            yi = np.where(board[top:y0, x0] == WALL)[0]
-                            if len(yi):
-                                y0 = top + yi[-1] + 1
-                                direction = 0
-                            elif (
-                                y0 - direction >= 0
-                                and board[y0 - direction, x0] == EMPTY
-                            ):
-                                y0 = y0 - direction
-                                direction = 0
-                            else:
-                                y0_t, x0_t, r0_t = wrap(y0, x0, r0)
-                                if board[y0_t, x0_t] == WALL:
-                                    y0 = col_first_non_void[x0]
-                                    direction = 0
-                                else:
-                                    direction = (
-                                        direction - (y0 - col_first_non_void[x0]) - 1
-                                    )
-                                    y0, x0, r0 = y0_t, x0_t, r0_t
-                else:
-                    r0 = {
-                        "E": {"L": "N", "R": "S"},
-                        "N": {"L": "W", "R": "E"},
-                        "W": {"L": "S", "R": "N"},
-                        "S": {"L": "E", "R": "W"},
-                    }[r0][direction]
-
-            return y0, x0, r0
-
-        y1, x1, r1 = run(wrap_part_1)
-        yield 1000 * (1 + y1) + 4 * (1 + x1) + SCORES[r1]
-
-        y2, x2, r2 = run(wrap_part_2)
-        yield 1000 * (1 + y2) + 4 * (1 + x2) + SCORES[r2]
+y2, x2, r2 = run(wrap_part_2)
+answer_2 = 1000 * (1 + y2) + 4 * (1 + x2) + SCORES[r2]
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2022/day23.py
+++ b/src/holt59/aoc/2022/day23.py
@@ -1,8 +1,6 @@
 import itertools
+import sys
 from collections import defaultdict
-from typing import Any, Iterator
-
-from ..base import BaseSolver

 Directions = list[
    tuple[
@@ -20,10 +18,22 @@ DIRECTIONS: Directions = [


 def min_max_yx(positions: set[tuple[int, int]]) -> tuple[int, int, int, int]:
-    ys, xs = {y for y, _x in positions}, {x for _y, x in positions}
+    ys, xs = {y for y, x in positions}, {x for y, x in positions}
    return min(ys), min(xs), max(ys), max(xs)


+def print_positions(positions: set[tuple[int, int]]):
+    min_y, min_x, max_y, max_x = min_max_yx(positions)
+    print(
+        "\n".join(
+            "".join(
+                "#" if (y, x) in positions else "." for x in range(min_x - 1, max_x + 2)
+            )
+            for y in range(min_y - 1, max_y + 2)
+        )
+    )
+
+
 def round(
    positions: set[tuple[int, int]],
    directions: Directions,
@@ -59,38 +69,35 @@ def round(
    directions.append(directions.pop(0))


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        POSITIONS = {
-            (i, j)
-            for i, row in enumerate(input.splitlines())
-            for j, col in enumerate(row)
-            if col == "#"
-        }
+POSITIONS = {
+    (i, j)
+    for i, row in enumerate(sys.stdin.read().splitlines())
+    for j, col in enumerate(row)
+    if col == "#"
+}

-        # === part 1 ===
+# === part 1 ===

-        p1, d1 = POSITIONS.copy(), DIRECTIONS.copy()
-        for _ in range(10):
-            round(p1, d1)
+p1, d1 = POSITIONS.copy(), DIRECTIONS.copy()
+for r in range(10):
+    round(p1, d1)

-        min_y, min_x, max_y, max_x = min_max_yx(p1)
-        yield sum(
-            (y, x) not in p1
-            for y in range(min_y, max_y + 1)
-            for x in range(min_x, max_x + 1)
-        )
+min_y, min_x, max_y, max_x = min_max_yx(p1)
+answer_1 = sum(
+    (y, x) not in p1 for y in range(min_y, max_y + 1) for x in range(min_x, max_x + 1)
+)
+print(f"answer 1 is {answer_1}")

-        # === part 2 ===
+# === part 2 ===

-        p2, d2 = POSITIONS.copy(), DIRECTIONS.copy()
-        answer_2 = 0
-        while True:
-            answer_2 += 1
-            backup = p2.copy()
-            round(p2, d2)
+p2, d2 = POSITIONS.copy(), DIRECTIONS.copy()
+answer_2 = 0
+while True:
+    answer_2 += 1
+    backup = p2.copy()
+    round(p2, d2)

-            if backup == p2:
-                break
+    if backup == p2:
+        break

-        yield answer_2
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2022/day24.py
+++ b/src/holt59/aoc/2022/day24.py
@@ -1,117 +1,98 @@
 import heapq
 import math
+import sys
 from collections import defaultdict
-from typing import Any, Iterator

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()
+
+winds = {
+    (i - 1, j - 1, lines[i][j])
+    for i in range(1, len(lines) - 1)
+    for j in range(1, len(lines[i]) - 1)
+    if lines[i][j] != "."
+}
+
+n_rows, n_cols = len(lines) - 2, len(lines[0]) - 2
+CYCLE = math.lcm(n_rows, n_cols)
+
+east_winds = [{j for j in range(n_cols) if (i, j, ">") in winds} for i in range(n_rows)]
+west_winds = [{j for j in range(n_cols) if (i, j, "<") in winds} for i in range(n_rows)]
+north_winds = [
+    {i for i in range(n_rows) if (i, j, "^") in winds} for j in range(n_cols)
+]
+south_winds = [
+    {i for i in range(n_rows) if (i, j, "v") in winds} for j in range(n_cols)
+]


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = [line.strip() for line in input.splitlines()]
+def run(start: tuple[int, int], start_cycle: int, end: tuple[int, int]):
+    def heuristic(y: int, x: int) -> int:
+        return abs(end[0] - y) + abs(end[1] - x)

-        winds = {
-            (i - 1, j - 1, lines[i][j])
-            for i in range(1, len(lines) - 1)
-            for j in range(1, len(lines[i]) - 1)
-            if lines[i][j] != "."
-        }
+    # (distance + heuristic, distance, (start_pos, cycle))
+    queue = [(heuristic(start[0], start[1]), 0, ((start[0], start[1]), start_cycle))]
+    visited: set[tuple[tuple[int, int], int]] = set()
+    distances: dict[tuple[int, int], dict[int, int]] = defaultdict(lambda: {})

-        n_rows, n_cols = len(lines) - 2, len(lines[0]) - 2
-        CYCLE = math.lcm(n_rows, n_cols)
+    while queue:
+        _, distance, ((y, x), cycle) = heapq.heappop(queue)

-        east_winds = [
-            {j for j in range(n_cols) if (i, j, ">") in winds} for i in range(n_rows)
-        ]
-        west_winds = [
-            {j for j in range(n_cols) if (i, j, "<") in winds} for i in range(n_rows)
-        ]
-        north_winds = [
-            {i for i in range(n_rows) if (i, j, "^") in winds} for j in range(n_cols)
-        ]
-        south_winds = [
-            {i for i in range(n_rows) if (i, j, "v") in winds} for j in range(n_cols)
-        ]
+        if ((y, x), cycle) in visited:
+            continue

-        def run(start: tuple[int, int], start_cycle: int, end: tuple[int, int]):
-            def heuristic(y: int, x: int) -> int:
-                return abs(end[0] - y) + abs(end[1] - x)
+        distances[y, x][cycle] = distance

-            # (distance + heuristic, distance, (start_pos, cycle))
-            queue = [
-                (heuristic(start[0], start[1]), 0, ((start[0], start[1]), start_cycle))
-            ]
-            visited: set[tuple[tuple[int, int], int]] = set()
-            distances: dict[tuple[int, int], dict[int, int]] = defaultdict(lambda: {})
+        visited.add(((y, x), cycle))

-            while queue:
-                _, distance, ((y, x), cycle) = heapq.heappop(queue)
+        if (y, x) == (end[0], end[1]):
+            break

-                if ((y, x), cycle) in visited:
+        for dy, dx in (0, 0), (-1, 0), (1, 0), (0, -1), (0, 1):
+            ty = y + dy
+            tx = x + dx
+
+            n_cycle = (cycle + 1) % CYCLE
+
+            if (ty, tx) == end:
+                heapq.heappush(queue, (distance + 1, distance + 1, ((ty, tx), n_cycle)))
+                break
+
+            if ((ty, tx), n_cycle) in visited:
+                continue
+
+            if (ty, tx) != start and (ty < 0 or tx < 0 or ty >= n_rows or tx >= n_cols):
+                continue
+
+            if (ty, tx) != start:
+                if (ty - n_cycle) % n_rows in south_winds[tx]:
+                    continue
+                if (ty + n_cycle) % n_rows in north_winds[tx]:
+                    continue
+                if (tx + n_cycle) % n_cols in west_winds[ty]:
+                    continue
+                if (tx - n_cycle) % n_cols in east_winds[ty]:
                    continue

-                distances[y, x][cycle] = distance
+            heapq.heappush(
+                queue,
+                ((heuristic(ty, tx) + distance + 1, distance + 1, ((ty, tx), n_cycle))),
+            )

-                visited.add(((y, x), cycle))
+    return distances, next(iter(distances[end].values()))

-                if (y, x) == (end[0], end[1]):
-                    break

-                for dy, dx in (0, 0), (-1, 0), (1, 0), (0, -1), (0, 1):
-                    ty = y + dy
-                    tx = x + dx
+start = (
+    -1,
+    next(j for j in range(1, len(lines[0]) - 1) if lines[0][j] == ".") - 1,
+)
+end = (
+    n_rows,
+    next(j for j in range(1, len(lines[-1]) - 1) if lines[-1][j] == ".") - 1,
+)

-                    n_cycle = (cycle + 1) % CYCLE
+distances_1, forward_1 = run(start, 0, end)
+print(f"answer 1 is {forward_1}")

-                    if (ty, tx) == end:
-                        heapq.heappush(
-                            queue, (distance + 1, distance + 1, ((ty, tx), n_cycle))
-                        )
-                        break
-
-                    if ((ty, tx), n_cycle) in visited:
-                        continue
-
-                    if (ty, tx) != start and (
-                        ty < 0 or tx < 0 or ty >= n_rows or tx >= n_cols
-                    ):
-                        continue
-
-                    if (ty, tx) != start:
-                        if (ty - n_cycle) % n_rows in south_winds[tx]:
-                            continue
-                        if (ty + n_cycle) % n_rows in north_winds[tx]:
-                            continue
-                        if (tx + n_cycle) % n_cols in west_winds[ty]:
-                            continue
-                        if (tx - n_cycle) % n_cols in east_winds[ty]:
-                            continue
-
-                    heapq.heappush(
-                        queue,
-                        (
-                            (
-                                heuristic(ty, tx) + distance + 1,
-                                distance + 1,
-                                ((ty, tx), n_cycle),
-                            )
-                        ),
-                    )
-
-            return distances, next(iter(distances[end].values()))
-
-        start = (
-            -1,
-            next(j for j in range(1, len(lines[0]) - 1) if lines[0][j] == ".") - 1,
-        )
-        end = (
-            n_rows,
-            next(j for j in range(1, len(lines[-1]) - 1) if lines[-1][j] == ".") - 1,
-        )
-
-        distances_1, forward_1 = run(start, 0, end)
-        yield forward_1
-
-        distances_2, return_1 = run(end, next(iter(distances_1[end].keys())), start)
-        _distances_3, forward_2 = run(start, next(iter(distances_2[start].keys())), end)
-        yield forward_1 + return_1 + forward_2
+distances_2, return_1 = run(end, next(iter(distances_1[end].keys())), start)
+distances_3, forward_2 = run(start, next(iter(distances_2[start].keys())), end)
+print(f"answer 2 is {forward_1 + return_1 + forward_2}")
--- a/src/holt59/aoc/2022/day25.py
+++ b/src/holt59/aoc/2022/day25.py
@@ -1,28 +1,27 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()
+
+coeffs = {"2": 2, "1": 1, "0": 0, "-": -1, "=": -2}


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = [line.strip() for line in input.splitlines()]
+def snafu2number(number: str) -> int:
+    value = 0
+    for c in number:
+        value *= 5
+        value += coeffs[c]
+    return value

-        coeffs = {"2": 2, "1": 1, "0": 0, "-": -1, "=": -2}

-        def snafu2number(number: str) -> int:
-            value = 0
-            for c in number:
-                value *= 5
-                value += coeffs[c]
-            return value
+def number2snafu(number: int) -> str:
+    values = ["0", "1", "2", "=", "-"]
+    res = ""
+    while number > 0:
+        mod = number % 5
+        res = res + values[mod]
+        number = number // 5 + int(mod >= 3)
+    return "".join(reversed(res))

-        def number2snafu(number: int) -> str:
-            values = ["0", "1", "2", "=", "-"]
-            res = ""
-            while number > 0:
-                mod = number % 5
-                res = res + values[mod]
-                number = number // 5 + int(mod >= 3)
-            return "".join(reversed(res))

-        yield number2snafu(sum(map(snafu2number, lines)))
+answer_1 = number2snafu(sum(map(snafu2number, lines)))
+print(f"answer 1 is {answer_1}")
--- a/src/holt59/aoc/2022/day3.py
+++ b/src/holt59/aoc/2022/day3.py
@@ -1,28 +1,23 @@
 import string
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = [line.strip() for line in sys.stdin.readlines()]

+# extract content of each part
+parts = [(set(line[: len(line) // 2]), set(line[len(line) // 2 :])) for line in lines]

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = [line.strip() for line in input.splitlines()]
+# priorities
+priorities = {c: i + 1 for i, c in enumerate(string.ascii_letters)}

-        # extract content of each part
-        parts = [
-            (set(line[: len(line) // 2]), set(line[len(line) // 2 :])) for line in lines
-        ]
+# part 1
+part1 = sum(priorities[c] for p1, p2 in parts for c in p1.intersection(p2))
+print(f"answer 1 is {part1}")

-        # priorities
-        priorities = {c: i + 1 for i, c in enumerate(string.ascii_letters)}
-
-        # part 1
-        yield sum(priorities[c] for p1, p2 in parts for c in p1.intersection(p2))
-
-        # part 2
-        n_per_group = 3
-        yield sum(
-            priorities[c]
-            for i in range(0, len(lines), n_per_group)
-            for c in set(lines[i]).intersection(*lines[i + 1 : i + n_per_group])
-        )
+# part 2
+n_per_group = 3
+part2 = sum(
+    priorities[c]
+    for i in range(0, len(lines), n_per_group)
+    for c in set(lines[i]).intersection(*lines[i + 1 : i + n_per_group])
+)
+print(f"answer 2 is {part2}")
--- a/src/holt59/aoc/2022/day4.py
+++ b/src/holt59/aoc/2022/day4.py
@@ -1,6 +1,6 @@
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+lines = [line.strip() for line in sys.stdin.readlines()]


 def make_range(value: str) -> set[int]:
@@ -8,13 +8,10 @@ def make_range(value: str) -> set[int]:
    return set(range(int(parts[0]), int(parts[1]) + 1))


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = [line.strip() for line in input.splitlines()]
+sections = [tuple(make_range(part) for part in line.split(",")) for line in lines]

-        sections = [
-            tuple(make_range(part) for part in line.split(",")) for line in lines
-        ]
+answer_1 = sum(s1.issubset(s2) or s2.issubset(s1) for s1, s2 in sections)
+print(f"answer 1 is {answer_1}")

-        yield sum(s1.issubset(s2) or s2.issubset(s1) for s1, s2 in sections)
-        yield sum(bool(s1.intersection(s2)) for s1, s2 in sections)
+answer_2 = sum(bool(s1.intersection(s2)) for s1, s2 in sections)
+print(f"answer 1 is {answer_2}")
--- a/src/holt59/aoc/2022/day5.py
+++ b/src/holt59/aoc/2022/day5.py
@@ -1,43 +1,41 @@
 import copy
-from typing import Any, Iterator
+import sys

-from ..base import BaseSolver
+blocks_s, moves_s = (part.splitlines() for part in sys.stdin.read().split("\n\n"))

+blocks: dict[str, list[str]] = {stack: [] for stack in blocks_s[-1].split()}

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        blocks_s, moves_s = (part.splitlines() for part in input.split("\n\n"))
+# this codes assumes that the lines are regular, i.e., 4 characters per "crate" in the
+# form of '[X] ' (including the trailing space)
+#
+for block in blocks_s[-2::-1]:
+    for stack, index in zip(blocks, range(0, len(block), 4)):
+        crate = block[index + 1 : index + 2].strip()

-        blocks: dict[str, list[str]] = {stack: [] for stack in blocks_s[-1].split()}
+        if crate:
+            blocks[stack].append(crate)

-        # this codes assumes that the lines are regular, i.e., 4 characters per "crate" in the
-        # form of '[X] ' (including the trailing space)
-        #
-        for block in blocks_s[-2::-1]:
-            for stack, index in zip(blocks, range(0, len(block), 4)):
-                crate = block[index + 1 : index + 2].strip()
+# part 1 - deep copy for part 2
+blocks_1 = copy.deepcopy(blocks)

-                if crate:
-                    blocks[stack].append(crate)
+for move in moves_s:
+    _, count_s, _, from_, _, to_ = move.strip().split()

-        # part 1 - deep copy for part 2
-        blocks_1 = copy.deepcopy(blocks)
+    for _i in range(int(count_s)):
+        blocks_1[to_].append(blocks_1[from_].pop())

-        for move in moves_s:
-            _, count_s, _, from_, _, to_ = move.strip().split()
+# part 2
+blocks_2 = copy.deepcopy(blocks)

-            for _i in range(int(count_s)):
-                blocks_1[to_].append(blocks_1[from_].pop())
+for move in moves_s:
+    _, count_s, _, from_, _, to_ = move.strip().split()
+    count = int(count_s)

-        # part 2
-        blocks_2 = copy.deepcopy(blocks)
+    blocks_2[to_].extend(blocks_2[from_][-count:])
+    del blocks_2[from_][-count:]

-        for move in moves_s:
-            _, count_s, _, from_, _, to_ = move.strip().split()
-            count = int(count_s)
+answer_1 = "".join(s[-1] for s in blocks_1.values())
+print(f"answer 1 is {answer_1}")

-            blocks_2[to_].extend(blocks_2[from_][-count:])
-            del blocks_2[from_][-count:]
-
-        yield "".join(s[-1] for s in blocks_1.values())
-        yield "".join(s[-1] for s in blocks_2.values())
+answer_2 = "".join(s[-1] for s in blocks_2.values())
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2022/day6.py
+++ b/src/holt59/aoc/2022/day6.py
@@ -1,6 +1,4 @@
-from typing import Any, Iterator
-
-from ..base import BaseSolver
+import sys


 def index_of_first_n_differents(data: str, n: int) -> int:
@@ -10,7 +8,8 @@ def index_of_first_n_differents(data: str, n: int) -> int:
    return -1


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        yield index_of_first_n_differents(input, 4)
-        yield index_of_first_n_differents(input, 14)
+data = sys.stdin.read().strip()
+
+
+print(f"answer 1 is {index_of_first_n_differents(data, 4)}")
+print(f"answer 2 is {index_of_first_n_differents(data, 14)}")
--- a/src/holt59/aoc/2022/day7.py
+++ b/src/holt59/aoc/2022/day7.py
@@ -1,81 +1,80 @@
+import sys
 from pathlib import Path
-from typing import Any, Iterator

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()
+
+# we are going to use Path to create path and go up/down in the file tree since it
+# implements everything we need
+#
+# we can use .resolve() to get normalized path, although this will add C:\ to all paths
+# on Windows but that is not an issue since only the sizes matter
+#
+
+# mapping from path to list of files or directories
+trees: dict[Path, list[Path]] = {}
+
+# mapping from paths to either size (for file) or -1 for directory
+sizes: dict[Path, int] = {}
+
+# first line must be a cd otherwise we have no idea where we are
+assert lines[0].startswith("$ cd")
+base_path = Path(lines[0].strip("$").split()[1]).resolve()
+cur_path = base_path
+
+trees[cur_path] = []
+sizes[cur_path] = -1
+
+for line in lines[1:]:
+    # command
+    if line.startswith("$"):
+        parts = line.strip("$").strip().split()
+        command = parts[0]
+
+        if command == "cd":
+            cur_path = cur_path.joinpath(parts[1]).resolve()
+
+            # just initialize the lis of files if not already done
+            if cur_path not in trees:
+                trees[cur_path] = []
+        else:
+            # nothing to do here
+            pass
+
+    # fill the current path
+    else:
+        parts = line.split()
+        name: str = parts[1]
+        if line.startswith("dir"):
+            size = -1
+        else:
+            size = int(parts[0])
+
+        path = cur_path.joinpath(name)
+        trees[cur_path].append(path)
+        sizes[path] = size


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = [line.strip() for line in input.splitlines()]
+def compute_size(path: Path) -> int:
+    size = sizes[path]

-        # we are going to use Path to create path and go up/down in the file tree since it
-        # implements everything we need
-        #
-        # we can use .resolve() to get normalized path, although this will add C:\ to all paths
-        # on Windows but that is not an issue since only the sizes matter
-        #
+    if size >= 0:
+        return size

-        # mapping from path to list of files or directories
-        trees: dict[Path, list[Path]] = {}
+    return sum(compute_size(sub) for sub in trees[path])

-        # mapping from paths to either size (for file) or -1 for directory
-        sizes: dict[Path, int] = {}

-        # first line must be a cd otherwise we have no idea where we are
-        assert lines[0].startswith("$ cd")
-        base_path = Path(lines[0].strip("$").split()[1]).resolve()
-        cur_path = base_path
+acc_sizes = {path: compute_size(path) for path in trees}

-        trees[cur_path] = []
-        sizes[cur_path] = -1
+# part 1
+answer_1 = sum(size for size in acc_sizes.values() if size <= 100_000)
+print(f"answer 1 is {answer_1}")

-        for line in lines[1:]:
-            # command
-            if line.startswith("$"):
-                parts = line.strip("$").strip().split()
-                command = parts[0]
+# part 2
+total_space = 70_000_000
+update_space = 30_000_000
+free_space = total_space - acc_sizes[base_path]

-                if command == "cd":
-                    cur_path = cur_path.joinpath(parts[1]).resolve()
+to_free_space = update_space - free_space

-                    # just initialize the lis of files if not already done
-                    if cur_path not in trees:
-                        trees[cur_path] = []
-                else:
-                    # nothing to do here
-                    pass
-
-            # fill the current path
-            else:
-                parts = line.split()
-                name: str = parts[1]
-                if line.startswith("dir"):
-                    size = -1
-                else:
-                    size = int(parts[0])
-
-                path = cur_path.joinpath(name)
-                trees[cur_path].append(path)
-                sizes[path] = size
-
-        def compute_size(path: Path) -> int:
-            size = sizes[path]
-
-            if size >= 0:
-                return size
-
-            return sum(compute_size(sub) for sub in trees[path])
-
-        acc_sizes = {path: compute_size(path) for path in trees}
-
-        # part 1
-        yield sum(size for size in acc_sizes.values() if size <= 100_000)
-
-        # part 2
-        total_space = 70_000_000
-        update_space = 30_000_000
-        free_space = total_space - acc_sizes[base_path]
-
-        to_free_space = update_space - free_space
-
-        yield min(size for size in acc_sizes.values() if size >= to_free_space)
+answer_2 = min(size for size in acc_sizes.values() if size >= to_free_space)
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2022/day8.py
+++ b/src/holt59/aoc/2022/day8.py
@@ -1,54 +1,53 @@
-from typing import Any, Iterator
+import sys

 import numpy as np
 from numpy.typing import NDArray

-from ..base import BaseSolver
+lines = sys.stdin.read().splitlines()

+trees = np.array([[int(x) for x in row] for row in lines])

-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = [line.strip() for line in input.splitlines()]
-
-        trees = np.array([[int(x) for x in row] for row in lines])
-
-        # answer 1
-        highest_trees = np.ones(trees.shape + (4,), dtype=int) * -1
-        highest_trees[1:-1, 1:-1] = [
-            [
-                [
-                    trees[:i, j].max(),
-                    trees[i + 1 :, j].max(),
-                    trees[i, :j].max(),
-                    trees[i, j + 1 :].max(),
-                ]
-                for j in range(1, trees.shape[1] - 1)
-            ]
-            for i in range(1, trees.shape[0] - 1)
+# answer 1
+highest_trees = np.ones(trees.shape + (4,), dtype=int) * -1
+highest_trees[1:-1, 1:-1] = [
+    [
+        [
+            trees[:i, j].max(),
+            trees[i + 1 :, j].max(),
+            trees[i, :j].max(),
+            trees[i, j + 1 :].max(),
        ]
+        for j in range(1, trees.shape[1] - 1)
+    ]
+    for i in range(1, trees.shape[0] - 1)
+]

-        yield (highest_trees.min(axis=2) < trees).sum()
+answer_1 = (highest_trees.min(axis=2) < trees).sum()
+print(f"answer 1 is {answer_1}")

-        def viewing_distance(row_of_trees: NDArray[np.int_], value: int) -> int:
-            w = np.where(row_of_trees >= value)[0]

-            if not w.size:
-                return len(row_of_trees)
+def viewing_distance(row_of_trees: NDArray[np.int_], value: int) -> int:
+    w = np.where(row_of_trees >= value)[0]

-            return w[0] + 1
+    if not w.size:
+        return len(row_of_trees)

-        # answer 2
-        v_distances = np.zeros(trees.shape + (4,), dtype=int)
-        v_distances[1:-1, 1:-1, :] = [
-            [
-                [
-                    viewing_distance(trees[i - 1 :: -1, j], trees[i, j]),
-                    viewing_distance(trees[i, j - 1 :: -1], trees[i, j]),
-                    viewing_distance(trees[i, j + 1 :], trees[i, j]),
-                    viewing_distance(trees[i + 1 :, j], trees[i, j]),
-                ]
-                for j in range(1, trees.shape[1] - 1)
-            ]
-            for i in range(1, trees.shape[0] - 1)
+    return w[0] + 1
+
+
+# answer 2
+v_distances = np.zeros(trees.shape + (4,), dtype=int)
+v_distances[1:-1, 1:-1, :] = [
+    [
+        [
+            viewing_distance(trees[i - 1 :: -1, j], trees[i, j]),
+            viewing_distance(trees[i, j - 1 :: -1], trees[i, j]),
+            viewing_distance(trees[i, j + 1 :], trees[i, j]),
+            viewing_distance(trees[i + 1 :, j], trees[i, j]),
        ]
-        yield np.prod(v_distances, axis=2).max()
+        for j in range(1, trees.shape[1] - 1)
+    ]
+    for i in range(1, trees.shape[0] - 1)
+]
+answer_2 = np.prod(v_distances, axis=2).max()
+print(f"answer 2 is {answer_2}")
--- a/src/holt59/aoc/2022/day9.py
+++ b/src/holt59/aoc/2022/day9.py
@@ -1,10 +1,7 @@
-import itertools as it
-from typing import Any, Iterator
+import sys

 import numpy as np

-from ..base import BaseSolver
-

 def move(head: tuple[int, int], command: str) -> tuple[int, int]:
    h_col, h_row = head
@@ -46,14 +43,17 @@ def run(commands: list[str], n_blocks: int) -> list[tuple[int, int]]:
    return visited


-class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        lines = [line.strip() for line in input.splitlines()]
+lines = sys.stdin.read().splitlines()

-        # flatten the commands
-        commands = list(
-            it.chain(*(p[0] * int(p[1]) for line in lines if (p := line.split())))
-        )
+# flatten the commands
+commands: list[str] = []
+for line in lines:
+    d, c = line.split()
+    commands.extend(d * int(c))

-        yield len(set(run(commands, n_blocks=2)))
-        yield len(set(run(commands, n_blocks=10)))
+
+visited_1 = run(commands, n_blocks=2)
+print(f"answer 1 is {len(set(visited_1))}")
+
+visited_2 = run(commands, n_blocks=10)
+print(f"answer 2 is {len(set(visited_2))}")
--- a/src/holt59/aoc/2023/day10.py
+++ b/src/holt59/aoc/2023/day10.py
@@ -83,17 +83,18 @@ class Solver(BaseSolver):
                if (i, j) in loop_s and lines[i][j] in "|LJ":
                    cnt += 1

-        if self.files:
-            rows = [["." for _j in range(len(lines[0]))] for _i in range(len(lines))]
-            rows[si][sj] = "\033[91mS\033[0m"
-
-            for i, j in loop:
-                rows[i][j] = lines[i][j]
-            for i, j in inside:
-                rows[i][j] = "\033[92mI\033[0m"
-
-            self.files.create(
-                "output.txt", "\n".join("".join(row) for row in rows).encode(), True
-            )
+        if self.verbose:
+            for i in range(len(lines)):
+                s = ""
+                for j in range(len(lines[0])):
+                    if (i, j) == (si, sj):
+                        s += "\033[91mS\033[0m"
+                    elif (i, j) in loop:
+                        s += lines[i][j]
+                    elif (i, j) in inside:
+                        s += "\033[92mI\033[0m"
+                    else:
+                        s += "."
+                self.logger.info(s)

        yield len(inside)
--- a/src/holt59/aoc/2023/day16.py
+++ b/src/holt59/aoc/2023/day16.py
@@ -84,14 +84,9 @@ class Solver(BaseSolver):

        beams = propagate(layout, (0, 0), "R")

-        if self.files:
-            self.files.create(
-                "beams.txt",
-                "\n".join(
-                    "".join("#" if col else "." for col in row) for row in beams
-                ).encode(),
-                True,
-            )
+        if self.verbose:
+            for row in beams:
+                self.logger.info("".join("#" if col else "." for col in row))

        # part 1
        yield sum(sum(map(bool, row)) for row in beams)
--- a/src/holt59/aoc/2023/day17.py
+++ b/src/holt59/aoc/2023/day17.py
@@ -33,14 +33,10 @@ MAPPINGS: dict[Direction, tuple[int, int, Direction]] = {
 class Solver(BaseSolver):
    def print_shortest_path(
        self,
-        name: str,
        grid: list[list[int]],
        target: tuple[int, int],
        per_cell: dict[tuple[int, int], list[tuple[Label, int]]],
    ):
-        if not self.files:
-            return
-
        assert len(per_cell[target]) == 1
        label = per_cell[target][0][0]

@@ -78,9 +74,8 @@ class Solver(BaseSolver):

        p_grid[0][0] = f"\033[92m{grid[0][0]}\033[0m"

-        self.files.create(
-            name, "\n".join("".join(row) for row in p_grid).encode(), True
-        )
+        for row in p_grid:
+            self.logger.info("".join(row))

    def shortest_many_paths(self, grid: list[list[int]]) -> dict[tuple[int, int], int]:
        n_rows, n_cols = len(grid), len(grid[0])
@@ -134,7 +129,6 @@ class Solver(BaseSolver):

    def shortest_path(
        self,
-        name: str,
        grid: list[list[int]],
        min_straight: int,
        max_straight: int,
@@ -223,7 +217,8 @@ class Solver(BaseSolver):
                    ),
                )

-        self.print_shortest_path(f"shortest-path_{name}.txt", grid, target, per_cell)
+        if self.verbose:
+            self.print_shortest_path(grid, target, per_cell)

        return per_cell[target][0][1]

@@ -232,7 +227,7 @@ class Solver(BaseSolver):
        estimates = self.shortest_many_paths(data)

        # part 1
-        yield self.shortest_path("answer_1", data, 1, 3, lower_bounds=estimates)
+        yield self.shortest_path(data, 1, 3, lower_bounds=estimates)

        # part 2
-        yield self.shortest_path("answer_2", data, 4, 10, lower_bounds=estimates)
+        yield self.shortest_path(data, 4, 10, lower_bounds=estimates)
--- a/src/holt59/aoc/2023/day20.py
+++ b/src/holt59/aoc/2023/day20.py
@@ -1,3 +1,4 @@
+import sys
 from collections import defaultdict
 from math import lcm
 from typing import Any, Iterator, Literal, TypeAlias
@@ -66,7 +67,7 @@ class Solver(BaseSolver):
    def solve(self, input: str) -> Iterator[Any]:
        self._modules = {}

-        lines = input.splitlines()
+        lines = sys.stdin.read().splitlines()

        for line in lines:
            name, outputs_s = line.split(" -> ")
@@ -79,23 +80,22 @@ class Solver(BaseSolver):
                    outputs,
                )

-        if self.files:
-            contents = "digraph G {\n"
-            contents += "rx [shape=circle, color=red, style=filled];\n"
-            for name, (type, outputs) in self._modules.items():
-                if type == "conjunction":
-                    shape = "diamond"
-                elif type == "flip-flop":
-                    shape = "box"
-                else:
-                    shape = "circle"
-                contents += f"{name} [shape={shape}];\n"
-            for name, (type, outputs) in self._modules.items():
-                for output in outputs:
-                    contents += f"{name} -> {output};\n"
-            contents += "}\n"
-
-            self.files.create("day20.dot", contents.encode(), False)
+        if self.outputs:
+            with open("./day20.dot", "w") as fp:
+                fp.write("digraph G {\n")
+                fp.write("rx [shape=circle, color=red, style=filled];\n")
+                for name, (type, outputs) in self._modules.items():
+                    if type == "conjunction":
+                        shape = "diamond"
+                    elif type == "flip-flop":
+                        shape = "box"
+                    else:
+                        shape = "circle"
+                    fp.write(f"{name} [shape={shape}];\n")
+                for name, (type, outputs) in self._modules.items():
+                    for output in outputs:
+                        fp.write(f"{name} -> {output};\n")
+                fp.write("}\n")

        # part 1
        flip_flop_states: dict[str, Literal["on", "off"]] = {
--- a/src/holt59/aoc/2023/day21.py
+++ b/src/holt59/aoc/2023/day21.py
@@ -50,7 +50,7 @@ class Solver(BaseSolver):
        values.append(len(tiles := reachable(map, tiles, cycle)))
        values.append(len(tiles := reachable(map, tiles, cycle)))

-        if self.files:
+        if self.verbose:
            n_rows, n_cols = len(map), len(map[0])

            rows = [
@@ -66,9 +66,8 @@ class Solver(BaseSolver):
                    if (i // cycle) % 2 == (j // cycle) % 2:
                        rows[i][j] = f"\033[91m{rows[i][j]}\033[0m"

-            self.files.create(
-                "cycle.txt", "\n".join("".join(row) for row in rows).encode(), True
-            )
+            for row in rows:
+                self.logger.info("".join(row))

        self.logger.info(f"values to fit: {values}")

@@ -102,31 +101,32 @@ class Solver(BaseSolver):
        # depending on the number of cycles, either A or B will be in the center
        #

-        # counts = [
-        #     [
-        #         sum(
-        #             (i, j) in tiles
-        #             for i in range(ci * cycle, (ci + 1) * cycle)
-        #             for j in range(cj * cycle, (cj + 1) * cycle)
-        #         )
-        #         for cj in range(-2, 3)
-        #     ]
-        #     for ci in range(-2, 3)
-        # ]
+        counts = [
+            [
+                sum(
+                    (i, j) in tiles
+                    for i in range(ci * cycle, (ci + 1) * cycle)
+                    for j in range(cj * cycle, (cj + 1) * cycle)
+                )
+                for cj in range(-2, 3)
+            ]
+            for ci in range(-2, 3)
+        ]

-        # radius = (26501365 - rhombus) // cycle - 1
-        # A = counts[2][2] if radius % 2 == 0 else counts[2][1]
-        # B = counts[2][2] if radius % 2 == 1 else counts[2][1]
-        # answer_2 = (
-        #     (radius + 1) * A
-        #     + radius * B
-        #     + 2 * radius * (radius + 1) // 2 * A
-        #     + 2 * radius * (radius - 1) // 2 * B
-        #     + sum(counts[i][j] for i, j in ((0, 2), (-1, 2), (2, 0), (2, -1)))
-        #     + sum(counts[i][j] for i, j in ((0, 1), (0, 3), (-1, 1), (-1, 3)))
-        #     * (radius + 1)
-        #     + sum(counts[i][j] for i, j in ((1, 1), (1, 3), (-2, 1), (-2, 3))) * radius
-        # )
+        radius = (26501365 - rhombus) // cycle - 1
+        A = counts[2][2] if radius % 2 == 0 else counts[2][1]
+        B = counts[2][2] if radius % 2 == 1 else counts[2][1]
+        answer_2 = (
+            (radius + 1) * A
+            + radius * B
+            + 2 * radius * (radius + 1) // 2 * A
+            + 2 * radius * (radius - 1) // 2 * B
+            + sum(counts[i][j] for i, j in ((0, 2), (-1, 2), (2, 0), (2, -1)))
+            + sum(counts[i][j] for i, j in ((0, 1), (0, 3), (-1, 1), (-1, 3)))
+            * (radius + 1)
+            + sum(counts[i][j] for i, j in ((1, 1), (1, 3), (-2, 1), (-2, 3))) * radius
+        )
+        print(f"answer 2 (v1) is {answer_2}")

        # version 2: fitting a polynomial
        #
--- a/src/holt59/aoc/2023/day25.py
+++ b/src/holt59/aoc/2023/day25.py
@@ -1,5 +1,3 @@
-# pyright: reportUnknownMemberType=false
-
 from typing import Any, Iterator

 import networkx as nx
--- a/src/holt59/aoc/2024/day10.py
+++ b/src/holt59/aoc/2024/day10.py
@@ -1,35 +1,7 @@
-import itertools as it
 from typing import Any, Iterator

 from ..base import BaseSolver


-def process(
-    grid: list[list[int]], current: tuple[int, int]
-) -> set[tuple[tuple[int, int], ...]]:
-    row, col = current
-    value = grid[row][col] + 1
-
-    if grid[row][col] == 9:
-        return {((row, col),)}
-
-    return {
-        ((row, col),) + path
-        for i, j in ((row - 1, col), (row, col + 1), (row + 1, col), (row, col - 1))
-        if 0 <= i < len(grid) and 0 <= j < len(grid[i]) and grid[i][j] == value
-        for path in process(grid, (i, j))
-    }
-
-
 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        grid = [[int(col) for col in row] for row in input.splitlines()]
-
-        paths = {
-            (i, j): process(grid, (i, j))
-            for i, j in it.product(range(len(grid)), range(len(grid[0])))
-            if grid[i][j] == 0
-        }
-
-        yield sum(len({path[-1] for path in paths[head]}) for head in paths)
-        yield sum(len(paths_of) for paths_of in paths.values())
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day11.py
+++ b/src/holt59/aoc/2024/day11.py
@@ -1,36 +1,7 @@
-from functools import cache
 from typing import Any, Iterator

 from ..base import BaseSolver


-def n_digits(n: int) -> int:
-    c = int(n == 0)
-    while n > 0:
-        c, n = c + 1, n // 10
-    return c
-
-
-@cache
-def blink_one_stone(stone: int, round: int) -> int:
-    if round == 0:
-        return 1
-
-    if stone == 0:
-        return blink_one_stone(1, round - 1)
-
-    if (n := n_digits(stone)) % 2 == 0:
-        p = 10 ** (n // 2)
-        return blink_one_stone(stone // p, round - 1) + blink_one_stone(
-            stone % p, round - 1
-        )
-
-    return blink_one_stone(stone * 2024, round - 1)
-
-
 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        stones = list(map(int, input.split()))
-
-        yield sum(blink_one_stone(stone, 25) for stone in stones)
-        yield sum(blink_one_stone(stone, 75) for stone in stones)
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day12.py
+++ b/src/holt59/aoc/2024/day12.py
@@ -1,101 +1,7 @@
-import itertools as it
-from dataclasses import dataclass
-from typing import Any, Iterator, TypeAlias
+from typing import Any, Iterator

 from ..base import BaseSolver

-Node: TypeAlias = tuple[int, int]
-Edge: TypeAlias = tuple[Node, Node]
-
-
-@dataclass(frozen=True)
-class Region:
-    value: str
-    cells: set[tuple[int, int]]
-    edges: set[Edge]
-    sides: list[tuple[Edge, ...]]
-
-
-def extract_region(grid: list[str], cell: tuple[int, int]):
-    n_rows, n_cols = len(grid), len(grid[0])
-    row, col = cell
-
-    value = grid[row][col]
-
-    cells: set[tuple[int, int]] = set()
-    edges: set[Edge] = set()
-    sides: list[tuple[Edge, ...]] = []
-
-    queue: list[tuple[int, int]] = [(row, col)]
-    while queue:
-        row, col = queue.pop(0)
-
-        if (row, col) in cells:
-            continue
-
-        cells.add((row, col))
-
-        for ur, uc in (
-            (row - 1, col),
-            (row, col + 1),
-            (row + 1, col),
-            (row, col - 1),
-        ):
-            if 0 <= ur < n_rows and 0 <= uc < n_cols and grid[ur][uc] == value:
-                queue.append((ur, uc))
-                continue
-
-            if ((row, col), (ur, uc)) in edges:
-                continue
-
-            if col == uc:
-                mid, max = col, n_cols
-
-                def get(v: int):
-                    return (row, v, ur, v)
-            else:
-                mid, max = row, n_rows
-
-                def get(v: int):
-                    return (v, col, v, uc)
-
-            side: tuple[Edge, ...] = ((((row, col), (ur, uc))),)
-            for rng in (range(mid - 1, -1, -1), range(mid, max)):
-                for r2, c2, ur2, uc2 in map(get, rng):
-                    if grid[r2][c2] != value or (
-                        0 <= ur2 < n_rows
-                        and 0 <= uc2 < n_cols
-                        and grid[r2][c2] == grid[ur2][uc2]
-                    ):
-                        break
-                    side += ((((r2, c2), (ur2, uc2))),)
-
-            sides.append(side)
-            edges = edges.union(side)
-
-    return Region(value=value, cells=cells, edges=edges, sides=sides)
-

 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        grid = input.splitlines()
-
-        regions: list[Region] = []
-        to_visit: set[tuple[int, int]] = set(
-            it.product(range(len(grid)), range(len(grid[0])))
-        )
-
-        while to_visit:
-            region = extract_region(grid, next(iter(to_visit)))
-
-            self.logger.info(
-                f"region with {region.value}: "
-                f"{len(region.cells)} * {len(region.edges)} = {len(region.cells) * len(region.edges)}, "
-                f"{len(region.cells)} * {len(region.sides)} = {len(region.cells) * len(region.sides)}"
-            )
-
-            to_visit.difference_update(region.cells)
-            regions.append(region)
-
-        yield sum(len(region.cells) * len(region.edges) for region in regions)
-        yield sum(len(region.cells) * len(region.sides) for region in regions)
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day13.py
+++ b/src/holt59/aoc/2024/day13.py
@@ -1,79 +1,7 @@
-import math
-from dataclasses import dataclass
 from typing import Any, Iterator

-import parse  # pyright: ignore[reportMissingTypeStubs]
-
 from ..base import BaseSolver


-@dataclass(frozen=True)
-class Machine:
-    prize: tuple[int, int]
-    button_a: tuple[int, int]
-    button_b: tuple[int, int]
-
-
-def read_machine(block: str) -> Machine:
-    ba = parse.parse(  # type: ignore
-        """Button A: X{bax:d}, Y{bay:d}
-Button B: X{bbx:d}, Y{bby:d}
-Prize: X={px:d}, Y={py:d}""",
-        block,
-    )
-    return Machine(
-        prize=(ba["px"], ba["py"]),  # type: ignore
-        button_a=(ba["bax"], ba["bay"]),  # type: ignore
-        button_b=(ba["bbx"], ba["bby"]),  # type: ignore
-    )
-
-
-def diophantine(a: int, b: int, c: int) -> tuple[int, int]:
-    q, r = divmod(a, b)
-    if r == 0:
-        return (0, c // b)
-    else:
-        u, v = diophantine(b, r, c)
-        return (v, u - q * v)
-
-
-def solve(machine: Machine) -> int:
-    (ax, ay), (bx, by), (px, py) = machine.button_a, machine.button_b, machine.prize
-    dx, dy = math.gcd(ax, bx), math.gcd(ay, by)
-
-    if px % dx != 0 or py % dy != 0:
-        return 0
-
-    xa, xb = diophantine(ax, bx, px)
-    ya, yb = diophantine(ay, by, py)
-
-    # expr (x): xa - kx * bx / dx, xb + kx * ax / dx
-    # expr (y): ya - ky * by / dy, yb + ky * ay / dy
-
-    num = ay * (ya - xa) + by * (yb - xb)
-    den = (ax * by - ay * bx) // dx
-
-    if num % den != 0:
-        return 0
-
-    kx = num // den
-    pa, pb = xa - kx * bx // dx, xb + kx * ax // dx
-    return 3 * pa + pb
-
-
 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        machines = [read_machine(block) for block in input.split("\n\n")]
-
-        yield sum(map(solve, machines))
-
-        shift = 10000000000000
-        machines = [
-            Machine(
-                prize=(shift + m.prize[0], shift + m.prize[1]),
-                button_a=m.button_a,
-                button_b=m.button_b,
-            )
-            for m in machines
-        ]
-        yield sum(map(solve, machines))
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day14.py
+++ b/src/holt59/aoc/2024/day14.py
@@ -1,74 +1,7 @@
-import itertools as it
-import operator as op
-from math import prod
 from typing import Any, Iterator

-import numpy as np
-import parse  # pyright: ignore[reportMissingTypeStubs]
-
 from ..base import BaseSolver


 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        positions: list[tuple[int, int]] = []
-        velocities: list[tuple[int, int]] = []
-
-        for line in input.splitlines():
-            r = parse.parse("p={x:d},{y:d} v={vx:d},{vy:d}", line)  # type: ignore
-            positions.append((r["y"], r["x"]))  # type: ignore
-            velocities.append((r["vy"], r["vx"]))  # type: ignore
-
-        n_rows, n_cols = 103, 101
-        if len(positions) < 20:
-            n_rows, n_cols = 7, 11
-
-        n_rounds = 100
-        new_positions = [
-            ((row + v_row * n_rounds) % n_rows, (col + v_col * n_rounds) % n_cols)
-            for (row, col), (v_row, v_col) in zip(positions, velocities, strict=True)
-        ]
-
-        midrow = n_rows // 2
-        midcol = n_cols // 2
-
-        yield prod(
-            (
-                sum(opr(row, midrow) and opc(col, midcol) for row, col in new_positions)
-                for opr, opc in it.product((op.gt, op.lt), repeat=2)
-            )
-        )
-
-        new_positions = positions.copy()
-        for rnd in self.progress.wrap(range(10000)):
-            new_positions = [
-                ((row + v_row) % n_rows, (col + v_col) % n_cols)
-                for (row, col), (v_row, v_col) in zip(
-                    new_positions, velocities, strict=True
-                )
-            ]
-            m = [[False for _ in range(n_cols)] for _ in range(n_rows)]
-            for row, col in new_positions:
-                m[row][col] = True
-
-            found = False
-            for row in m:
-                if sum(row) <= 10:
-                    continue
-                if any(all(row[i : i + 10]) for i in range(n_cols - 10)):
-                    if self.files:
-                        self.files.create(
-                            f"result_{rnd+1}.txt",
-                            "\n".join(
-                                "".join("#" if m[i][j] else "." for j in range(n_cols))
-                                for i in range(n_rows)
-                            ).encode(),
-                            True,
-                        )
-                        self.files.image(f"result_{rnd+1}.png", np.array(m))
-                    yield rnd + 1
-                    # found = True
-                    break
-
-            if found:
-                break
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day15.py
+++ b/src/holt59/aoc/2024/day15.py
@@ -1,282 +1,7 @@
-from typing import Any, Callable, Final, Iterator, TypeAlias
-
-import numpy as np
-from numpy.typing import NDArray
+from typing import Any, Iterator

 from ..base import BaseSolver

-ImageGrid: TypeAlias = NDArray[np.uint8]
-
-
-class Grid:
-    FREE: Final = 0
-    BLOCK: Final = 1
-    ROBOT: Final = 2
-
-    robot: tuple[int, int]
-
-    def __init__(self, grid_s: list[str], large: bool):
-        grid: list[list[int]] = []
-        robot: tuple[int, int] | None = None
-        box_counter = 4 if not large else 5
-        for i_row, row in enumerate(grid_s):
-            row_u: list[int] = []
-            for i_col, col in enumerate(row):
-                if col in ".@":
-                    row_u.extend((Grid.FREE, Grid.FREE) if large else (Grid.FREE,))
-                    if col == "@":
-                        robot = (i_row, i_col * 2 if large else i_col)
-                elif col == "#":
-                    row_u.extend((Grid.BLOCK, Grid.BLOCK) if large else (Grid.BLOCK,))
-                else:
-                    row_u.extend(
-                        (box_counter, -box_counter) if large else (box_counter,)
-                    )
-                    box_counter += 2
-            grid.append(row_u)
-
-        self.grid = np.array(grid)
-
-        assert robot is not None
-        self.robot = robot
-
-    @property
-    def n_rows(self):
-        return len(self.grid)
-
-    @property
-    def n_columns(self):
-        return len(self.grid[0])
-
-    def __len__(self):
-        return self.n_rows
-
-    def __iter__(self):
-        return iter(self.grid)
-
-    def __getitem__(self, index: tuple[int, int]):
-        return self.grid[*index]
-
-    def __setitem__(self, index: tuple[int, int], value: int):
-        self.grid[*index] = value
-
-    def is_free(self, row: int, col: int):
-        return self[row, col] == Grid.FREE
-
-    def is_block(self, row: int, col: int):
-        return self[row, col] == Grid.BLOCK
-
-    def is_box(self, row: int, col: int):
-        return (c := self[row, col]) >= 4 and c % 2 == 0
-
-    def is_open_or_close_box(self, row: int, col: int):
-        return abs(c := self[row, col]) >= 4 and c % 2 == 1
-
-    def is_open_box(self, row: int, col: int):
-        return (c := self[row, col]) >= 4 and c % 2 == 1
-
-    def is_close_box(self, row: int, col: int):
-        return self[row, col] < 0
-
-    def _to_char(self, row: int, col: int):
-        if self.is_free(row, col):
-            return "."
-        elif self.is_block(row, col):
-            return "#"
-        elif self.is_box(row, col):
-            return "O"
-        elif self.is_open_box(row, col):
-            return "["
-        else:
-            return "]"
-
-    def as_numpy(self):
-        arr = self.grid.copy()
-        arr[*self.robot] = Grid.ROBOT
-        return arr
-
-    def as_printable(self):
-        grid_s = [
-            [self._to_char(row, col) for col in range(self.n_columns)]
-            for row in range(self.n_rows)
-        ]
-        grid_s[self.robot[0]][self.robot[1]] = "\033[31;1m@\033[00m"
-        return "\n".join("".join(row) for row in grid_s)
-
-    def __str__(self):
-        return self.as_printable()
-

 class Solver(BaseSolver):
-    def save_grid(self, name: str, grid: Grid):
-        if self.files:
-            self.files.create(name, grid.as_printable().encode(), True)
-
-    def step_part1(self, grid: Grid, move: str):
-        match move:
-            case "^":
-                d_row, d_col = -1, 0
-            case ">":
-                d_row, d_col = 0, 1
-            case "v":
-                d_row, d_col = 1, 0
-            case "<":
-                d_row, d_col = 0, -1
-            case _:
-                assert False
-
-        row, col = grid.robot
-        if grid.is_free(row + d_row, col + d_col):
-            grid.robot = (row + d_row, col + d_col)
-        elif not grid.is_block(row + d_row, col + d_col):
-            n = 1
-            while grid.is_box(row + n * d_row, col + n * d_col):
-                n += 1
-
-            if grid.is_free(row + n * d_row, col + n * d_col):
-                grid.robot = (row + d_row, col + d_col)
-                for k in range(2, n + 1):
-                    grid[row + k * d_row, col + k * d_col] = grid[
-                        row + (k - 1) * d_row, col + (k - 1) * d_col
-                    ]
-                grid[row + d_row, col + d_col] = Grid.FREE
-
-        return grid
-
-    def step_part2(self, grid: Grid, move: str):
-        match move:
-            case "^":
-                d_row, d_col = -1, 0
-            case ">":
-                d_row, d_col = 0, 1
-            case "v":
-                d_row, d_col = 1, 0
-            case "<":
-                d_row, d_col = 0, -1
-            case _:
-                assert False
-
-        row, col = grid.robot
-        if grid.is_free(row + d_row, col + d_col):
-            grid.robot = (row + d_row, col + d_col)
-        elif grid.is_block(row + d_row, col + d_col):
-            ...
-        elif move in "<>":
-            n = 1
-            while grid.is_open_or_close_box(row, col + n * d_col):
-                n += 1
-
-            if grid.is_free(row, col + n * d_col):
-                grid.robot = (row, col + d_col)
-                for k in range(n, 1, -1):
-                    grid[row, col + k * d_col] = grid[row, col + (k - 1) * d_col]
-                grid[row + d_row, col + d_col] = Grid.FREE
-
-        elif move in "^v":
-            n = 1
-            boxes: list[set[int]] = [{col}]
-            while True:
-                to_move = boxes[-1]
-                if any(grid.is_block(row + n * d_row, c) for c in to_move):
-                    break
-                if all(grid.is_free(row + n * d_row, c) for c in to_move):
-                    break
-
-                as_move: set[int] = set()
-
-                for c in to_move:
-                    if grid.is_close_box(row + n * d_row, c):
-                        as_move.update({c - 1, c})
-                    elif grid.is_open_box(row + n * d_row, c):
-                        as_move.update({c, c + 1})
-
-                boxes.append(as_move)
-                n += 1
-
-            if all(grid.is_free(row + n * d_row, c) for c in boxes[-1]):
-                for k, to_move in zip(range(n, 1, -1), boxes[-1:0:-1], strict=True):
-                    for c in to_move:
-                        grid[row + k * d_row, c] = grid[row + (k - 1) * d_row, c]
-                        grid[row + (k - 1) * d_row, c] = Grid.FREE
-                grid.robot = (row + d_row, col + d_col)
-
-        return grid
-
-    def run(
-        self,
-        name: str,
-        grid: Grid,
-        moves: str,
-        fn: Callable[[Grid, str], Grid],
-        generate: bool,
-    ) -> tuple[Grid, list[ImageGrid]]:
-        # initialize
-        images: list[ImageGrid] = []
-
-        if generate:
-            images.append(grid.as_numpy())
-
-        self.save_grid(f"initial_grid_{name}.txt", grid)
-
-        for move in self.progress.wrap(moves):
-            self.logger.debug(f"Move '{move}'...")
-            grid = fn(grid, move)
-
-            if generate:
-                images.append(grid.as_numpy())
-
-        self.save_grid(f"final_grid_{name}.txt", grid)
-
-        return grid, images
-
-    def solve(self, input: str) -> Iterator[Any]:
-        grid_s, moves = input.split("\n\n")
-        moves = "".join(moves.split())
-
-        n_boxes = grid_s.count("O")
-        colors = np.concatenate(
-            [
-                np.array(
-                    [[255, 255, 255], [64, 64, 64], [255, 0, 0]],
-                    dtype=np.uint8,
-                ),
-                np.random.randint(0, 256, size=(n_boxes, 3), dtype=np.uint8),
-            ],
-            dtype=np.uint8,
-        )
-
-        grid, images = self.run(
-            "part1",
-            Grid(grid_s.splitlines(), False),
-            moves,
-            self.step_part1,
-            self.files is not None,
-        )
-        if self.files:
-            images = np.stack(images, axis=0)
-            images[images >= 2] = 1 + images[images >= 2] // 2
-            self.files.video("anim_part1.webm", colors[images])
-        yield sum(
-            100 * row + col
-            for row in range(grid.n_rows)
-            for col in range(grid.n_columns)
-            if grid.is_box(row, col)
-        )
-
-        grid, images = self.run(
-            "part2",
-            Grid(grid_s.splitlines(), True),
-            moves,
-            self.step_part2,
-            self.files is not None,
-        )
-        if self.files:
-            images = np.abs(np.stack(images, axis=0))
-            images[images >= 2] = 1 + images[images >= 2] // 2
-            self.files.video("anim_part2.webm", colors[images])
-        yield sum(
-            100 * row + col
-            for row in range(grid.n_rows)
-            for col in range(grid.n_columns)
-            if grid.is_open_box(row, col)
-        )
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day16.py
+++ b/src/holt59/aoc/2024/day16.py
@@ -1,62 +1,7 @@
-import heapq
-from collections import defaultdict
-from typing import Any, Iterator, TypeAlias
+from typing import Any, Iterator

 from ..base import BaseSolver

-Position: TypeAlias = tuple[int, int]
-Direction: TypeAlias = tuple[int, int]
-

 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        grid = [list(r) for r in input.splitlines()]
-        n_rows, n_cols = len(grid), len(grid[0])
-        rein = next(
-            (i, j) for i in range(n_rows) for j in range(n_cols) if grid[i][j] == "S"
-        )
-        target = next(
-            (i, j) for i in range(n_rows) for j in range(n_cols) if grid[i][j] == "E"
-        )
-
-        queue: list[tuple[int, Position, Direction, tuple[Position, ...]]] = [
-            (0, rein, (0, 1), (rein,))
-        ]
-
-        max_score = n_rows * n_cols * 1000
-        target_score: int = max_score
-        scores: dict[tuple[Position, Direction], int] = defaultdict(lambda: max_score)
-        visited: set[Position] = set()
-
-        while queue:
-            score, pos, dir, path = heapq.heappop(queue)
-
-            if target_score < score:
-                break
-
-            if pos == target:
-                target_score = score
-                visited |= set(path)
-                continue
-
-            scores[pos, dir] = score
-
-            row, col = pos
-            d_row, d_col = dir
-
-            for cost, n_pos, n_dir in (
-                (1, (row + d_row, col + d_col), dir),
-                (1000, pos, (1, 0) if d_row == 0 else (0, 1)),
-                (1000, pos, (-1, 0) if d_row == 0 else (0, -1)),
-            ):
-                n_row, n_col = n_pos
-                score_n = score + cost
-                if grid[n_row][n_col] != "#" and score_n < scores[n_pos, n_dir]:
-                    heapq.heappush(
-                        queue,
-                        (score_n, n_pos, n_dir, path + (n_pos,)),
-                    )
-
-        assert target_score is not None
-        yield target_score
-        yield len(visited)
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day17.py
+++ b/src/holt59/aoc/2024/day17.py
@@ -3,128 +3,5 @@ from typing import Any, Iterator
 from ..base import BaseSolver


-def combo(registers: dict[str, int], operand: int):
-    if operand < 4:
-        return operand
-    assert operand < 7
-    return registers["ABC"[operand - 4]]
-
-
-def adv(registers: dict[str, int], operand: int) -> int | None:
-    registers["A"] = registers["A"] >> combo(registers, operand)
-
-
-def bxl(registers: dict[str, int], operand: int) -> int | None:
-    registers["B"] ^= operand
-
-
-def bst(registers: dict[str, int], operand: int) -> int | None:
-    registers["B"] = combo(registers, operand) % 8
-
-
-def jnz(registers: dict[str, int], operand: int) -> int | None:
-    if registers["A"] != 0:
-        return operand
-
-
-def bxc(registers: dict[str, int], operand: int) -> int | None:
-    registers["B"] = registers["B"] ^ registers["C"]
-
-
-def bdv(registers: dict[str, int], operand: int) -> int | None:
-    registers["B"] = registers["A"] >> combo(registers, operand)
-
-
-def cdv(registers: dict[str, int], operand: int) -> int | None:
-    registers["C"] = registers["A"] >> combo(registers, operand)
-
-
-def run(registers: dict[str, int], program: list[int]):
-    outputs: list[int] = []
-
-    def out(registers: dict[str, int], operand: int) -> int | None:
-        outputs.append(combo(registers, operand) % 8)
-
-    instructions = [adv, bxl, bst, jnz, bxc, out, bdv, cdv]
-
-    index = 0
-    while index < len(program):
-        instruction, operand = instructions[program[index]], program[index + 1]
-
-        ret = instruction(registers, operand)
-
-        if ret is None:
-            index += 2
-        else:
-            index = ret
-
-    return outputs
-
-
 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        register_s, program_s = input.split("\n\n")
-
-        registers = {
-            p[0][-1]: int(p[1].strip())
-            for line in register_s.splitlines()
-            if (p := line.split(":"))
-        }
-        program = [int(c) for c in program_s.split(":")[1].strip().split(",")]
-
-        self.logger.info(f"program ({len(program)}): " + ",".join(map(str, program)))
-
-        instruction_s = [
-            "A = A >> {}",
-            "B = B ^ {}",
-            "B = {} % 8",
-            "JMP {}",
-            "B = B ^ C",
-            "OUT {} % 8",
-            "B = A >> {}",
-            "C = A >> {}",
-        ]
-
-        self.logger.info("PROGRAM:")
-        for index in range(0, len(program), 2):
-            self.logger.info(
-                instruction_s[program[index]].format(
-                    ""
-                    if program[index] == 4
-                    else (
-                        program[index + 1]
-                        if program[index] in (1, 3) or program[index + 1] < 4
-                        else "ABC"[program[index + 1] - 4]
-                    )
-                ),
-            )
-
-        yield ",".join(map(str, run(registers.copy(), program)))
-
-        # last instruction is JNZ 0 (jump at the beginning), and it is the only jump
-        # in the program
-        jnz_indices = [i for i in range(0, len(program), 2) if program[i] == 3]
-        assert jnz_indices == [len(program) - 2] and program[-1] == 0
-
-        # previous instruction is dividing A by 8, or A = A >> 3
-        assert program[-4:-2] == [0, 3]
-
-        # previous instruction is a OUT B % 8, and it is the only OUT in the program
-        out_indices = [i for i in range(0, len(program), 2) if program[i] == 5]
-        assert out_indices == [len(program) - 6] and program[len(program) - 5] == 5
-
-        valid: list[int] = [0]
-        for p in reversed(program):
-            new_valid: list[int] = []
-            for v in valid:
-                a_high = v << 3
-                for a_low in range(0, 2**3):
-                    registers["A"] = a_high | a_low
-                    run(registers, program[:-6])
-                    if registers["B"] % 8 == p:
-                        new_valid.append(a_high | a_low)
-            valid = new_valid
-
-        assert run(registers | {"A": min(valid)}, program) == program
-
-        yield min(valid)
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day18.py
+++ b/src/holt59/aoc/2024/day18.py
@@ -1,58 +1,7 @@
 from typing import Any, Iterator

 from ..base import BaseSolver
-from ..tools import graphs


 class Solver(BaseSolver):
-    def print_grid(self, grid: list[tuple[int, int]], n_rows: int, n_cols: int):
-        values = set(grid)
-        if self.files:
-            self.files.create(
-                "graph.txt",
-                "\n".join(
-                    "".join(
-                        "#" if (row, col) in values else "." for col in range(n_cols)
-                    )
-                    for row in range(n_rows)
-                ).encode(),
-                text=True,
-            )
-        else:
-            for row in range(n_rows):
-                self.logger.info(
-                    "".join(
-                        "#" if (row, col) in values else "." for col in range(n_cols)
-                    )
-                )
-
-    def dijkstra(self, corrupted: list[tuple[int, int]], n_rows: int, n_cols: int):
-        return graphs.dijkstra(
-            (0, 0),
-            (n_rows - 1, n_cols - 1),
-            graphs.make_neighbors_grid_fn(n_rows, n_cols, set(corrupted)),
-        )
-
-    def solve(self, input: str) -> Iterator[Any]:
-        values = [
-            (int(p[0]), int(p[1])) for r in input.splitlines() if (p := r.split(","))
-        ]
-
-        _is_test = len(values) < 100
-
-        n_rows, n_cols, n_bytes_p1 = (7, 7, 12) if _is_test else (71, 71, 1024)
-
-        bytes_p1 = values[:n_bytes_p1]
-        self.print_grid(bytes_p1, n_rows, n_cols)
-
-        path_p1, cost_p1 = self.dijkstra(bytes_p1, n_rows, n_cols) or ((), -1)
-        yield cost_p1
-
-        path = path_p1
-        for b in range(n_bytes_p1, len(values)):
-            if values[b] not in path:
-                continue
-            path, _ = self.dijkstra(values[: b + 1], n_rows, n_cols) or (None, -1)
-            if path is None:
-                yield ",".join(map(str, values[b]))
-                break
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day19.py
+++ b/src/holt59/aoc/2024/day19.py
@@ -1,42 +1,7 @@
-from functools import cache
 from typing import Any, Iterator

 from ..base import BaseSolver


-@cache
-def is_valid(design: str, towels: tuple[str, ...]) -> bool:
-    if not design:
-        return True
-
-    return any(
-        design.startswith(towel) and is_valid(design[len(towel) :], towels)
-        for towel in towels
-    )
-
-
-@cache
-def count_valid(design: str, towels: tuple[str, ...]) -> int:
-    if not design:
-        return 1
-
-    return sum(
-        design.startswith(towel) and count_valid(design[len(towel) :], towels)
-        for towel in towels
-    )
-
-
 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        towels_s, designs_s = input.split("\n\n")
-
-        towels = tuple(s.strip() for s in towels_s.split(","))
-
-        designs = [
-            design
-            for design in self.progress.wrap(designs_s.splitlines())
-            if is_valid(design, towels)
-        ]
-
-        yield len(designs)
-        yield sum(count_valid(design, towels) for design in self.progress.wrap(designs))
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day20.py
+++ b/src/holt59/aoc/2024/day20.py
@@ -1,95 +1,7 @@
-import itertools
-from collections import Counter
-from typing import Any, Callable, Iterable, Iterator, Sequence, TypeAlias
+from typing import Any, Iterator

 from ..base import BaseSolver
-from ..tools.graphs import dijkstra, make_neighbors_grid_fn
-
-Node: TypeAlias = tuple[int, int]
-
-
-def make_neighbors_fn(grid: list[str], cheat_length: int):
-    n_rows, n_cols = len(grid), len(grid[0])
-
-    def _fn(node: Node):
-        row, col = node
-        return (
-            ((row_n, col_n), abs(row_n - row) + abs(col_n - col))
-            for row_d in range(-cheat_length, cheat_length + 1)
-            for col_d in range(
-                -cheat_length + abs(row_d), cheat_length - abs(row_d) + 1
-            )
-            if 0 <= (row_n := row + row_d) < n_rows
-            and 0 <= (col_n := col + col_d) < n_cols
-            and grid[row_n][col_n] != "#"
-        )
-
-    return _fn


 class Solver(BaseSolver):
-    def find_cheats(
-        self,
-        path: Sequence[Node],
-        cost: float,
-        costs_to_target: dict[Node, float],
-        neighbors_fn: Callable[[Node], Iterable[tuple[Node, float]]],
-    ):
-        cheats: dict[tuple[tuple[int, int], tuple[int, int]], float] = {}
-
-        for i_node, node in enumerate(self.progress.wrap(path)):
-            for reach_node, reach_cost in neighbors_fn(node):
-                n_cost = (
-                    i_node + reach_cost + costs_to_target.get(reach_node, float("inf"))
-                )
-                if n_cost < cost:
-                    cheats[node, reach_node] = cost - n_cost
-
-        return cheats
-
-    def solve(self, input: str) -> Iterator[Any]:
-        grid = input.splitlines()
-        n_rows, n_cols = len(grid), len(grid[0])
-        start = next(
-            (i, j) for i in range(n_rows) for j in range(n_cols) if grid[i][j] == "S"
-        )
-        target = next(
-            (i, j) for i in range(n_rows) for j in range(n_cols) if grid[i][j] == "E"
-        )
-
-        reachable = dijkstra(
-            target,
-            None,
-            make_neighbors_grid_fn(
-                n_rows,
-                n_cols,
-                excluded=(
-                    (i, j)
-                    for i in range(n_rows)
-                    for j in range(n_cols)
-                    if grid[i][j] == "#"
-                ),
-            ),
-        )
-
-        # note: path is inverted here
-        path, cost = reachable[start]
-        costs_to_target = {k: c for k, (_, c) in reachable.items()}
-
-        self.logger.info(f"found past from start to target with cost {cost}")
-
-        for cheat_length in (2, 20):
-            cheats = self.find_cheats(
-                list(reversed(path)),
-                cost,
-                costs_to_target,
-                make_neighbors_fn(grid, cheat_length),
-            )
-
-            for saving, count in sorted(Counter(cheats.values()).items()):
-                self.logger.debug(
-                    f"There are {count} cheats that save {saving} picoseconds."
-                )
-
-            target_saving = 100 if len(grid) > 20 else 50
-            yield sum(saving >= target_saving for saving in cheats.values())
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day21.py
+++ b/src/holt59/aoc/2024/day21.py
@@ -1,85 +1,7 @@
-import itertools
-from functools import cache
-from typing import Any, Iterator, Literal
+from typing import Any, Iterator

 from ..base import BaseSolver

-NUM_PAD_P = {
-    v: (i, j)
-    for i, r in enumerate(("789", "456", "123", " 0A"))
-    for j, v in enumerate(r)
-    if v.strip()
-}
-MOV_PAD_P = {
-    v: (i, j)
-    for i, r in enumerate((" ^A", "<v>"))
-    for j, v in enumerate(r)
-    if v.strip()
-}
-
-
-def path(start: tuple[int, int], end: tuple[int, int], pad: Literal["num", "mov"]):
-    # a move in the grid is composed of at most two straight line: up/down and
-    # left/right, since doing some kind of diagonal moves would create long path for
-    # the robot above (since this involves going back-and-forth to the letter 'A')
-    #
-    row_s, col_s = start
-    row_e, col_e = end
-
-    le, de, ue, re = (
-        "<" * max(0, col_s - col_e),
-        "v" * max(0, row_e - row_s),
-        "^" * max(0, row_s - row_e),
-        ">" * max(0, col_e - col_s),
-    )
-
-    # when the robot starts or ends on the row/column with the empty cell, there is
-    # only one way to move
-    #
-    if pad == "num" and (row_s, col_e) == (3, 0):
-        return ue + le
-    elif pad == "num" and (col_s, row_e) == (0, 3):
-        return re + de
-    elif pad == "mov" and col_s == 0:
-        return re + ue
-    elif pad == "mov" and col_e == 0:
-        return de + le
-
-    # otherwise, we need to decide if we want to go up/down first, or left/right, and
-    # apparently this is the best way to do it...
-    return le + de + ue + re
-
-
-@cache
-def v_clicks(clicks: str, depth: int) -> int:
-    if depth == 0:
-        return len(clicks)
-
-    n_clicks = 0
-    at = "A"
-    for _, group in itertools.groupby(clicks):
-        group = list(group)
-        n_clicks += v_clicks(
-            path(MOV_PAD_P[at], MOV_PAD_P[group[0]], "mov") + "A" * len(group),
-            depth - 1,
-        )
-        at = group[0]
-
-    return n_clicks
-
-
-def path_length(code: str, depth: int):
-    return sum(
-        v_clicks(path(NUM_PAD_P[start], NUM_PAD_P[end], "num") + "A", depth)
-        for start, end in zip("A" + code[:-1], code, strict=True)
-    )
-

 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        yield sum(
-            path_length(code, 2) * int(code[:-1], 10) for code in input.splitlines()
-        )
-        yield sum(
-            path_length(code, 25) * int(code[:-1], 10) for code in input.splitlines()
-        )
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day22.py
+++ b/src/holt59/aoc/2024/day22.py
@@ -3,57 +3,5 @@ from typing import Any, Iterator
 from ..base import BaseSolver


-def mix(secret: int, value: int) -> int:
-    return secret ^ value
-
-
-def prune(secret: int) -> int:
-    return secret % 16777216
-
-
-def next_number(secret: int) -> int:
-    # Calculate the result of multiplying the secret number by 64. Then, mix this
-    # result into the secret number. Finally, prune the secret number.
-    secret = prune(mix(secret, secret * 64))
-
-    # Calculate the result of dividing the secret number by 32. Round the result down
-    # to the nearest integer. Then, mix this result into the secret number. Finally,
-    # prune the secret number.
-    secret = prune(mix(secret, secret // 32))
-
-    # Calculate the result of multiplying the secret number by 2048. Then, mix this
-    # result into the secret number. Finally, prune the secret number.
-    secret = prune(mix(secret, secret * 2048))
-
-    return secret
-
-
 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        starts = [int(r) for r in input.splitlines()]
-
-        ends: list[int] = []
-        prices: list[int] = [0 for _ in range(2**16)]
-
-        for secret in self.progress.wrap(starts):
-            checked: list[bool] = [False] * len(prices)
-            hashed: int = 0
-
-            for i in range(2000):
-                last = secret % 10
-                secret = next_number(secret)
-                next = secret % 10
-
-                hashed = ((hashed << 4) & 0xFFFF) | ((last - next) & 0xF)
-
-                if i >= 3 and not checked[hashed]:
-                    checked[hashed] = True
-                    prices[hashed] += next
-
-            ends.append(secret)
-
-        for start, end in zip(starts, ends, strict=True):
-            self.logger.info(f"{start}: {end}")
-
-        yield sum(ends)
-        yield max(prices)
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day23.py
+++ b/src/holt59/aoc/2024/day23.py
@@ -1,36 +1,7 @@
-from collections import defaultdict
 from typing import Any, Iterator

 from ..base import BaseSolver
-from ..tools.graphs import iter_max_cliques


 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        connections: dict[str, set[str]] = defaultdict(set)
-        for row in input.splitlines():
-            src, dst = row.split("-")
-            connections[src].add(dst)
-            connections[dst].add(src)
-
-        if self.files:
-            content = "graph G {\n"
-            for row in input.splitlines():
-                src, dst = row.split("-")
-                content += f"{src} -- {dst}\n"
-            content += "}"
-            self.files.create("graph.dot", content.encode(), False)
-
-        cliques: set[frozenset[str]] = set()
-
-        for node1, neighbors in connections.items():
-            for node2 in neighbors:
-                for node3 in connections[node2].intersection(neighbors):
-                    cliques.add(frozenset({node1, node2, node3}))
-
-        self.logger.info(f"found {len(cliques)} cliques of size 3")
-        yield sum(any(node.startswith("t") for node in clique) for clique in cliques)
-
-        # clique = max(nx.algorithms.clique.find_cliques(G), key=len)
-        clique = max(iter_max_cliques(connections), key=len)
-        yield ",".join(sorted(clique))
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day24.py
+++ b/src/holt59/aoc/2024/day24.py
@@ -1,170 +1,7 @@
-from dataclasses import dataclass
-from typing import Any, Iterator, Literal, TypeAlias, cast
+from typing import Any, Iterator

 from ..base import BaseSolver

-GateType: TypeAlias = Literal["and", "or", "xor"]
-
-
-@dataclass(frozen=True, eq=True)
-class Gate:
-    type: GateType
-    lhs: str
-    rhs: str
-
-    def __call__(self, lhs: int, rhs: int) -> Any:
-        match self.type:
-            case "or":
-                return int(lhs or rhs)
-            case "and":
-                return int(lhs and rhs)
-            case "xor":
-                return int(lhs != rhs)
-

 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        inputs_s, gates_s = input.split("\n\n")
-
-        wires: dict[str, int | None] = {}
-        for row in inputs_s.splitlines():
-            parts = row.split(": ")
-            wires[parts[0]] = int(parts[1])
-
-        gates: dict[str, Gate] = {}
-        for row in gates_s.splitlines():
-            parts = row.split()
-            assert parts[4] not in gates
-            assert parts[4] not in wires
-
-            lhs, rhs = sorted([parts[0], parts[2]])
-
-            gates[parts[4]] = Gate(cast(GateType, parts[1].lower()), lhs, rhs)
-            wires[parts[4]] = None
-
-        if self.files:
-            content = "digraph G {\n"
-            for wire in wires:
-                content += f'{wire} [label="{wire}"]\n'
-            for wire, gate in gates.items():
-                gate_n = f"G_{wire}"
-                content += f'{gate_n} [label="{gate.type.upper()}"]\n'
-                content += f"{gate.lhs} -> {gate_n}\n"
-                content += f"{gate.rhs} -> {gate_n}\n"
-                content += f"{gate_n} -> {wire}\n"
-            content += "}\n"
-            self.files.create("gates.dot", content.encode(), text=False)
-
-        wires_to_find = set(gates)
-
-        while wires_to_find:
-            wires_found: list[str] = []
-            for wire in wires_to_find:
-                gate = gates[wire]
-
-                lhs, rhs = wires[gate.lhs], wires[gate.rhs]
-
-                if lhs is None or rhs is None:
-                    continue
-
-                assert wires[wire] is None
-                wires[wire] = gate(lhs, rhs)
-
-                wires_found.append(wire)
-
-            wires_to_find.difference_update(wires_found)
-
-        z_wires = sorted((wire for wire in wires if wire.startswith("z")))
-        self.logger.info(
-            "binary value is '{}'".format(
-                "".join(str(wires[w]) for w in reversed(z_wires))
-            )
-        )
-        yield int("".join(str(wires[w]) for w in reversed(z_wires)), base=2)
-
-        # e00 = x00 ^ y00
-        # z00 = e00
-        # r00 = x00 & y00
-
-        # e01 = x01 ^ y01
-        # z01 = r00 ^ e01
-        # a01 = x01 & y01
-        # b01 = r00 & e01
-        # r01 = a01 | (r00 & e01)
-
-        assert gates["z00"] == Gate("xor", "x00", "y00")
-
-        # normalized names -> gate name
-        m_gates: dict[str, str] = {}
-
-        def find_gate(type: GateType, lhs: str, rhs: str):
-            try:
-                return next(
-                    wire
-                    for wire, gate in gates.items()
-                    if gate.type == type
-                    and {gate.lhs, gate.rhs}
-                    == {m_gates.get(lhs, lhs), m_gates.get(rhs, rhs)}
-                )
-            except StopIteration as ex:
-                self.logger.info(
-                    f"gate {lhs} [{m_gates.get(lhs, lhs)}] {type} {rhs} [{m_gates.get(rhs, rhs)}] not found"
-                )
-                raise ex
-
-        # find the r00 gate (= x00 & y00)
-        m_gates["r00"] = find_gate("and", "x00", "y00")
-
-        swapped: list[str] = []
-
-        for i_wire, z_wire in enumerate(z_wires[1:-1], start=1):
-            i2d = f"{i_wire:02d}"
-            r0n = f"r{i_wire - 1:02d}"
-            m_gates[f"e{i2d}"] = find_gate("xor", f"x{i2d}", f"y{i2d}")
-
-            try:
-                z_gate = find_gate("xor", r0n, f"e{i2d}")
-            except StopIteration:
-                # gate xor not found -> one of the input gate has been swapped
-                #
-                # assume there is a XOR gate with the remainder, so it is the other
-                # input that has been swapped
-                assert gates[z_wire].type == "xor"
-                assert m_gates.get(r0n, r0n) in (gates[z_wire].lhs, gates[z_wire].rhs)
-
-                wrong_wire_1 = (
-                    gates[z_wire].lhs
-                    if gates[z_wire].rhs == m_gates.get(r0n, r0n)
-                    else gates[z_wire].rhs
-                )
-                wrong_wire_2 = m_gates[f"e{i2d}"]
-
-                # we are going to fix all the gates (there is probably only 2 but
-                # eh...) whose wires needs to be swapped
-
-                self.logger.info(f"swapping {wrong_wire_1} <> {wrong_wire_2}")
-                switch = {wrong_wire_1: wrong_wire_2, wrong_wire_2: wrong_wire_1}
-
-                for wire, gate in list(gates.items()):
-                    lhs, rhs = (
-                        switch.get(gate.lhs, gate.lhs),
-                        switch.get(gate.rhs, gate.rhs),
-                    )
-                    if lhs != gate.lhs or rhs != gate.rhs:
-                        gates[wire] = Gate(gate.type, lhs, rhs)
-
-                swapped.extend((wrong_wire_1, wrong_wire_2))
-
-                z_gate = find_gate("xor", r0n, f"e{i2d}")
-
-            if z_gate != z_wire:
-                self.logger.info(f"swapping {z_gate} <> {z_wire}")
-                gates[z_gate], gates[z_wire] = gates[z_wire], gates[z_gate]
-                swapped.extend((z_gate, z_wire))
-
-            m_gates[f"a{i2d}"] = find_gate("and", f"x{i2d}", f"y{i2d}")
-            m_gates[f"b{i2d}"] = find_gate("and", r0n, f"e{i2d}")
-            m_gates[f"r{i2d}"] = find_gate("or", f"a{i2d}", f"b{i2d}")
-
-        assert len(swapped) == 8
-        yield ",".join(sorted(swapped))
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day25.py
+++ b/src/holt59/aoc/2024/day25.py
@@ -1,40 +1,7 @@
-import itertools as it
 from typing import Any, Iterator

 from ..base import BaseSolver


-def read_locks_and_keys(input: str):
-    locks: list[tuple[int, ...]] = []
-    keys: list[tuple[int, ...]] = []
-
-    for block in map(str.splitlines, input.split("\n\n")):
-        n_rows, n_cols = len(block), len(block[0])
-        if block[0] == "#" * n_cols:
-            locks.append(
-                tuple(
-                    next(i for i in range(n_rows) if block[i][j] == ".") - 1
-                    for j in range(n_cols)
-                )
-            )
-        else:
-            keys.append(
-                tuple(
-                    n_rows - next(i for i in range(n_rows) if block[i][j] == "#") - 1
-                    for j in range(n_cols)
-                )
-            )
-
-    return locks, keys
-
-
 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        locks, keys = read_locks_and_keys(input)
-        assert len(set(locks)) == len(locks)
-        assert len(set(keys)) == len(keys)
-
-        yield sum(
-            all(c1 + c2 <= 5 for c1, c2 in zip(lock, key, strict=True))
-            for lock, key in it.product(locks, keys)
-        )
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/2024/day9.py
+++ b/src/holt59/aoc/2024/day9.py
@@ -4,64 +4,4 @@ from ..base import BaseSolver


 class Solver(BaseSolver):
-    def solve(self, input: str) -> Iterator[Any]:
-        blocks: list[tuple[int, int]] = []
-        frees: list[tuple[int, int]] = []
-
-        contents_0: list[int | None] = [None for _ in range(sum(map(int, input)))]
-
-        acc = 0
-        for i, c in enumerate(input):
-            if i % 2 == 0:
-                for j in range(acc, acc + int(c)):
-                    contents_0[j] = i // 2
-                blocks.append((acc, int(c)))
-            else:
-                frees.append((acc, int(c)))
-            acc += int(c)
-
-        assert contents_0[-1] is not None
-
-        contents = contents_0.copy()
-
-        free_0 = next(i for i, c in enumerate(contents) if c is None)
-        next_b = len(contents) - 1
-
-        while free_0 < next_b:
-            contents[free_0], contents[next_b] = contents[next_b], contents[free_0]
-
-            free_0 += 1
-            while free_0 < len(contents) and contents[free_0] is not None:
-                free_0 += 1
-
-            next_b -= 1
-            while next_b >= 0 and contents[next_b] is None:
-                next_b -= 1
-
-        yield sum(i * c for i, c in enumerate(contents) if c is not None)
-
-        contents = contents_0.copy()
-
-        for block_start, block_length in self.progress.wrap(blocks[::-1]):
-            try:
-                i_free = next(
-                    i_free
-                    for i_free, (free_start, free_length) in enumerate(frees)
-                    if free_start < block_start and free_length >= block_length
-                )
-            except StopIteration:
-                continue
-
-            free_start, free_length = frees[i_free]
-
-            contents[free_start : free_start + block_length] = contents[
-                block_start : block_start + block_length
-            ]
-            contents[block_start : block_start + block_length] = [None] * block_length
-
-            if free_length == block_length:
-                del frees[i_free]
-            else:
-                frees[i_free] = (free_start + block_length, free_length - block_length)
-
-        yield sum(i * c for i, c in enumerate(contents) if c is not None)
+    def solve(self, input: str) -> Iterator[Any]: ...
--- a/src/holt59/aoc/main.py
+++ b/src/holt59/aoc/main.py
@@ -1,48 +1,114 @@
 import argparse
 import importlib
+import json
 import logging
 import logging.handlers
 import sys
-from datetime import datetime
+from datetime import datetime, timedelta
 from pathlib import Path
+from typing import Any, Iterable, Iterator, Literal, Sequence, TextIO, TypeVar
+
+from tqdm import tqdm

 from .base import BaseSolver
-from .utils.api import FileHandlerAPI, LoggerAPIHandler, ProgressAPI, dump_answer
-from .utils.files import SimpleFileHandler
-from .utils.progress import ProgressNone, ProgressTQDM
+
+_T = TypeVar("_T")


-def find_input_file(folder: Path, day: int, target: Path | None):
-    if (path := folder.joinpath(f"day{day}.txt")).exists():
-        return path
+def dump_api_message(
+    type: Literal["log", "answer", "progress-start", "progress-step", "progress-end"],
+    content: Any,
+    file: TextIO = sys.stdout,
+):
+    print(
+        json.dumps(
+            {"type": type, "time": datetime.now().isoformat(), "content": content}
+        ),
+        flush=True,
+        file=file,
+    )

-    if (
-        target is not None
-        and (path := folder.joinpath(f"day{day}_v{target}.txt")).exists()
+
+class LoggerAPIHandler(logging.Handler):
+    def __init__(self, output: TextIO = sys.stdout):
+        super().__init__()
+        self.output = output
+
+    def emit(self, record: logging.LogRecord):
+        dump_api_message(
+            "log", {"level": record.levelname, "message": record.getMessage()}
+        )
+
+
+class ProgressAPI:
+    def __init__(
+        self,
+        min_step: int = 1,
+        min_time: timedelta = timedelta(milliseconds=100),
+        output: TextIO = sys.stdout,
    ):
-        return path
+        super().__init__()

-    try:
-        return next(path for path in sorted(folder.glob(f"day{day}*.txt")))
-    except StopIteration:
-        ...
+        self.counter = 0
+        self.output = output
+        self.min_step = min_step
+        self.min_time = min_time

-    return folder.joinpath(f"day{day}.txt")
+    def wrap(
+        self, values: Sequence[_T] | Iterable[_T], total: int | None = None
+    ) -> Iterator[_T]:
+        total = total or len(values)  # type: ignore
+
+        current = self.counter
+        self.counter += 1
+
+        dump_api_message("progress-start", {"counter": current, "total": total})
+
+        try:
+            percent = 0
+            time = datetime.now()
+
+            for i_value, value in enumerate(values):
+                yield value
+
+                if datetime.now() - time < self.min_time:
+                    continue
+
+                time = datetime.now()
+
+                c_percent = round(i_value / total * 100)
+
+                if c_percent >= percent + self.min_step:
+                    dump_api_message(
+                        "progress-step", {"counter": current, "percent": c_percent}
+                    )
+                    percent = c_percent
+        finally:
+            dump_api_message(
+                "progress-end",
+                {"counter": current},
+            )
+
+
+class ProgressTQDM:
+    def wrap(
+        self, values: Sequence[_T] | Iterable[_T], total: int | None = None
+    ) -> Iterator[_T]:
+        return iter(tqdm(values, total=total))
+
+
+class ProgressNone:
+    def wrap(
+        self, values: Sequence[_T] | Iterable[_T], total: int | None = None
+    ) -> Iterator[_T]:
+        return iter(values)


 def main():
    parser = argparse.ArgumentParser("Holt59 Advent-Of-Code Runner")
    parser.add_argument("-v", "--verbose", action="store_true", help="verbose mode")
    parser.add_argument("-t", "--test", action="store_true", help="test mode")
-
    parser.add_argument("-a", "--api", action="store_true", help="API mode")
-    parser.add_argument(
-        "-o",
-        "--output",
-        type=Path,
-        default=Path("files"),
-        help="output folder for created files",
-    )
    parser.add_argument(
        "-u", "--user", type=str, default="holt59", help="user input to use"
    )
@@ -69,24 +135,20 @@ def main():
    test: bool = args.test
    stdin: bool = args.stdin
    user: str = args.user
-    files_output: Path = args.output
    input_path: Path | None = args.input

    year: int = args.year
    day: int = args.day

+    # TODO: change this
    logging.basicConfig(
-        level=logging.INFO if verbose else logging.WARNING,
+        level=logging.INFO if verbose or api else logging.WARNING,
        handlers=[LoggerAPIHandler()] if api else None,
    )

-    if input_path is None or not input_path.exists():
-        input_path = find_input_file(
-            Path(__file__).parent.joinpath(
-                "inputs", "tests" if test else user, str(year)
-            ),
-            day,
-            input_path,
+    if input_path is None:
+        input_path = Path(__file__).parent.joinpath(
+            "inputs", "tests" if test else user, str(year), f"day{day}.txt"
        )
    assert input_path.exists(), f"{input_path} missing"

@@ -104,11 +166,7 @@ def main():
        else ProgressTQDM()
        if verbose
        else ProgressNone(),  # type: ignore
-        files=FileHandlerAPI(files_output)
-        if api and verbose
-        else SimpleFileHandler(logging.getLogger("AOC"), files_output)
-        if verbose
-        else None,
+        outputs=not api,
    )

    data: str
@@ -121,7 +179,7 @@ def main():
    start = datetime.now()
    last = start

-    it = solver.solve(data.rstrip())
+    it = solver.solve(data.strip())

    if it is None:
        solver.logger.error(f"no implementation for {year} day {day}")
@@ -131,11 +189,14 @@ def main():
        current = datetime.now()

        if api:
-            dump_answer(
-                part=i_answer + 1,
-                answer=answer,
-                answer_time=current - last,
-                total_time=current - start,
+            dump_api_message(
+                "answer",
+                {
+                    "answer": i_answer + 1,
+                    "value": answer,
+                    "answerTime_s": (current - last).total_seconds(),
+                    "totalTime_s": (current - start).total_seconds(),
+                },
            )
        else:
            print(
--- a/src/holt59/aoc/base.py
+++ b/src/holt59/aoc/base.py
@@ -1,78 +1,18 @@
 from abc import abstractmethod
 from logging import Logger
-from pathlib import Path
-from typing import (
-    Any,
-    Final,
-    Iterable,
-    Iterator,
-    Protocol,
-    Sequence,
-    TypeVar,
-    overload,
-)
-
-from numpy.typing import NDArray
+from typing import Any, Final, Iterable, Iterator, Protocol, Sequence, TypeVar, overload

 _T = TypeVar("_T")


 class ProgressHandler(Protocol):
    @overload
-    def wrap(self, values: Sequence[_T]) -> Iterator[_T]: ...
+    def wrap(self, values: Sequence[_T]) -> Iterator[_T]:
+        ...

    @overload
-    def wrap(self, values: Iterable[_T], total: int) -> Iterator[_T]: ...
-
-
-class FileHandler:
-    @abstractmethod
-    def make_path(self, filename: str) -> Path: ...
-
-    @abstractmethod
-    def notify_created(self, path: Path): ...
-
-    @abstractmethod
-    def _create(
-        self, path: Path, content: bytes, text: bool = False
-    ) -> Path | None: ...
-
-    def create(self, filename: str, content: bytes, text: bool = False):
-        path = self._create(self.make_path(filename), content, text)
-
-        if path is not None:
-            self.notify_created(path)
-
-    def image(self, filename: str, image: NDArray[Any]):
-        import imageio.v3 as iio
-        from pygifsicle import optimize  # type: ignore
-
-        path = self.make_path(filename)
-
-        iio.imwrite(path, image)  # type: ignore
-        optimize(path, options=["--no-warnings"])
-
-        self.notify_created(path)
-
-    def video(self, filename: str, video: NDArray[Any]):
-        import cv2
-
-        path = self.make_path(filename)
-        fps = 5
-        out = cv2.VideoWriter(
-            path.as_posix(),
-            cv2.VideoWriter_fourcc(*"vp80"),  # type: ignore
-            fps,
-            (video.shape[2], video.shape[1]),
-            True,
-        )
-
-        for picture in video:
-            out.write(picture)
-
-        out.release()
-
-        self.notify_created(path)
+    def wrap(self, values: Iterable[_T], total: int) -> Iterator[_T]:
+        ...


 class BaseSolver:
@@ -83,14 +23,15 @@ class BaseSolver:
        year: int,
        day: int,
        progress: ProgressHandler,
-        files: FileHandler | None = None,
+        outputs: bool = False,
    ):
        self.logger: Final = logger
        self.verbose: Final = verbose
        self.year: Final = year
        self.day: Final = day
        self.progress: Final = progress
-        self.files: Final = files
+        self.outputs = outputs

    @abstractmethod
-    def solve(self, input: str) -> Iterator[Any] | None: ...
+    def solve(self, input: str) -> Iterator[Any] | None:
+        ...
--- a/src/holt59/aoc/inputs/holt59/2015/day23.txt
+++ b/src/holt59/aoc/inputs/holt59/2015/day23.txt
@@ -1,49 +0,0 @@
-jio a, +19
-inc a
-tpl a
-inc a
-tpl a
-inc a
-tpl a
-tpl a
-inc a
-inc a
-tpl a
-tpl a
-inc a
-inc a
-tpl a
-inc a
-inc a
-tpl a
-jmp +23
-tpl a
-tpl a
-inc a
-inc a
-tpl a
-inc a
-inc a
-tpl a
-inc a
-tpl a
-inc a
-tpl a
-inc a
-tpl a
-inc a
-inc a
-tpl a
-inc a
-inc a
-tpl a
-tpl a
-inc a
-jio a, +8
-inc b
-jie a, +4
-tpl a
-inc a
-jmp +2
-hlf a
-jmp -7
--- a/src/holt59/aoc/inputs/holt59/2015/day24.txt
+++ b/src/holt59/aoc/inputs/holt59/2015/day24.txt
@@ -1,28 +0,0 @@
-1
-3
-5
-11
-13
-17
-19
-23
-29
-31
-41
-43
-47
-53
-59
-61
-67
-71
-73
-79
-83
-89
-97
-101
-103
-107
-109
-113
--- a/src/holt59/aoc/inputs/holt59/2015/day25.txt
+++ b/src/holt59/aoc/inputs/holt59/2015/day25.txt
@@ -1 +0,0 @@
-To continue, please consult the code grid in the manual.  Enter the code at row 3010, column 3019.
--- a/src/holt59/aoc/inputs/holt59/2021/day10.txt
+++ b/src/holt59/aoc/inputs/holt59/2021/day10.txt
@@ -1,94 +0,0 @@
-<[<<({{<{<[[([()][()()])<{[]<>}{<>}>><<<[]{}>>{<<><>>({}{})}>][<<<{}<>>([])>{<{}><()>}>]><(<{(()[]){[](
-<{([({{[(<[({({}{})[()<>]}{{<>{}}[(){}]})]>({(<<<><>>{{}()}>)<<<[]><{}<>>><[{}[]]<<>[]>>>}))[{(<{([]
-([<([({(<([<({()()}(<>[]))[<[]()>{<>{}}]>]<{{{{}{}}{()()})({[]}[<>{}])}>)>)}){<<{{(<<<()<>><<><>>>
-[{{[<<[{([[{{[<>{}]<()<>>}[(()<>)[{}<>]]}<<[{}[]]([]<>)>{{[]{}}{()()}}>]][[{<({}{})<[]{}>>
-<<{{<([(((([{<[]<>>{()<>}}(<<>[]>{(){}})]([{{}<>}<[]>](<[][]><{}()>)))))[({{{<[]{}>[()]}<<<><>>
-<(<[{(<[{{{<{[[]<>]{<>()}}><[[{}()][(){}]]>}}<[<[<()()>({}<>)]><[{[]()}([][])](<(){}>[<><>])>]{
-{[[<{{<<[[<<(({}<>){<><>})[[<>()][[]{})]>[[[{}[]]<<>>]{(<>[])}]>{{<<()[]>{<>{}}>[{[]<>}<[]{}>]
-({[((((([{[({[{}[]]<[]()>}[({}{})<<>[]>])<[(()[])<{}()>]{[[]<>]{[]()})>](([({}<>)(()[])][<[]{}>])
-{[[{[({(<<{<([{}<>])<({}<>)({}<>}>>[<[{}()]([]<>)>((<>())<[]{}>)]}<([(<>())[(){}]]{[{}<>]<[][]>}){<{<><
-(<{<<[<<([[([<<><>>]<<{}()><[]<>>>)]][{(({<>{}}(()())))(<[()()]<[]()>>)}[[<<<>()><<>{}>>([{}<>][{}[]])]{<{(
-<<[({{{{{[<([((){})([]())]<((){})({}[])>)[{[{}()]{[]<>}}]>([<{{}<>}><({}<>)({}[])>]<[{<>{}}
-(([[{{({{{[<<{[]()}({})>{{{}()}[[]<>]}>{<([])>[[[]{}]]}](([<[]{}>]<<[]<>><{}[]>>))}}}(([[[{[<><>
-<<[(<[{{<((<[<()>[<><>]][[<><>]([]())]>[({<>})<<()<>><{}[]>>])[[(<[]<>>([]())){{<>[]}(()())}]]){(<(<[]<>>
-({[<<[[{<[[{{[()()]{()[]}}}]<{([{}{}]{[]()})[[()[]]<<>>]}>]>}[({((<{<><>)>{{[]()}{{}[]}}){([{}[]]<{}{}>)<
-([{{<{[(<[<<[({}())({}())]>>[{[<<>[]>[<>()]]<(<>[]){()[]}>}(<<<>[]>[<>[]]>{<<>[]>{{}()}})]]{
-<[{{<[((<([[{<<><>>{()}}{<{}[]><[]()]}]])<{({<()>{()[]}}(<(){}><[]<>>)){[({}[]){<>[]}]}}<<([()()]<()(
-<{<{[(({(({({<[]>([])}<<()<>>{<>()}>){[[()[]]<{}()>]{({}[])[()<>]}}}<[<<{}()><[]{}>>({[][]}[()<>])}{<<[]
-<[{{[<({(<[<[[()<>]({}[])]([{}[]]([]))>]{[{{<>[]}[[]{}]}(({}<>)<()[]>)]<<[()[]]>({(){}}<{}()>)>}>)}<<[[[[<<>(
-{{<(<[((({(<[<[]{}>[(){}]](<{}<>>((){}))>){(({[]{}}<{}[]>){{<><>}[[]{}]}))}<([<(<>)>[<<>{}>[{}
-<([({[<[(({[(({}))(<{}()><<>{}>)]<[{{}[]}{{}<>}]{[{}()]{{}()}}>})([[<(<>())({}{})>[<[]<>>[
-{((<<<{<(<[[[<{}<>}]<(<><>)>]]<(([(){}]{[]()}))<({{}<>}<()<>>){<()<>>{(){}}}>>>{({({()[]}[<>
-([<[[((<(<[<([{}[]])>{<(()<>)((){})>{<<>>(()<>)}}][{[(<>[])(<>[])]}[[{{}[]}[()()]]<<[]<>>{(){}}>]]><({(
-[{<([[[{([{<<([]<>){<><>}>[<(){}>]><{[<>[]](()<>)}[{()()}]>}<({{{}{}}}{[{}{}]<<>()>})<(<[]<
-(<({[{{[[(<[<(<>[])[[][]]>]{((<>[])({}<>))({[]<>})}>({<[()[]]]<{()[]}>})){(<(<<>[]>[<>{}])>{[({}<
-(<{<(({[(({[[<<>{}>({}<>)]{({}{}){(){}}}]{(<(){}>[[][]])<{()<>}>}}[[[{[]{}}[()]]](([[]()][(){}]))])
-([({<{[{<[{<({{}()}{{}()})>}]>}<<[[{{((){})<<>{}>}(({}[]){<>[]})}]]><[{{<({}<>)(()())>[{<>()}{{}()}]}{<{
-<[{[({[<<[[<<{{}{}}<{}{}>>([<>][(){}])><<<{}{}>>>]]{([{[[]()][[][]]}<{[]<>}>]<<[<>[]][[]()]><<()[
-[{({{{<<{[{([[()]({}[])]{[()()]})(((<>{})[[][]])<{{}{}}>)}]}>>}[((({{<([[]()][[]])}}{{<({}[])[{}
-{[({<{<<{[(([<<>[]>({}{})>))]{(<{{{}<>}<<>{}>}>)}}><(<(({([]())(<>[])}{{[]()}{[][]}})<{(()[])[<>{}]}>){({
-[<((<[<<(<<{<(<>)<[]{}>>[<[]{}><[]()>]}<((()[])((){}))[({}[]){[]{}}]>>([<[{}()][[]{}]>{{()[]}}][{[{}<>]<[]<
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--- a/src/holt59/aoc/inputs/holt59/2021/day11.txt
+++ b/src/holt59/aoc/inputs/holt59/2021/day11.txt
@@ -1,10 +0,0 @@
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--- a/src/holt59/aoc/inputs/holt59/2021/day12.txt
+++ b/src/holt59/aoc/inputs/holt59/2021/day12.txt
@@ -1,26 +0,0 @@
-xq-XZ
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-XZ-yr
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-kq-yr
--- a/src/holt59/aoc/inputs/holt59/2024/day10.txt
+++ b/src/holt59/aoc/inputs/holt59/2024/day10.txt
@@ -1,50 +0,0 @@
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--- a/src/holt59/aoc/inputs/holt59/2024/day11.txt
+++ b/src/holt59/aoc/inputs/holt59/2024/day11.txt
@@ -1 +0,0 @@
-2 77706 5847 9258441 0 741 883933 12
--- a/src/holt59/aoc/inputs/holt59/2024/day12.txt
+++ b/src/holt59/aoc/inputs/holt59/2024/day12.txt
@@ -1,140 +0,0 @@
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-DDDEEEEEEEYWYYYYYYYYYYIYYYIIIIIIIIIIXXXXXXXXXXXXJJJJJJFFFFFFFFFDDDDDZZBBBBBBBBAAAAAAAAAAAAANHHHHHHHHHHIIHHHJJIIBSSQYYYYYYQYQXXQQQQAKKGKGGGGG
-EEEEEEEEEEEWWYYYYYYYYYYYYYYYIIIIXIXXXXXXXXXXXXXXXJJJJFFFFFFFFFFDDDDDDZZBBBBBBBAAAAAAAAAAAAAATHHHHHHHHHIIIIIIIIIIIQQQQYYYYQQQXXXQQQKAKKKKKKGK
-EEEEEEEEEEEWWYWYYYYYYYYYYYYYYYIIXXXXXXXXXXXXXXXXJJJJFFFFFFFFFFFDDDDZZZZZBBBBBBBBAAAAAAAAAAAAAAHHHHHHHIIIIIIIIIIIIIQQQQQYYQQQQXQQQQKKKKKKKKKK
-EEEEEEEEEEWWWWWYYDYYYYYYYYYYYYYIIXXXXXXXXXXXKKKJJJJJFFFFFFFFFFFFDDDDDZZZZZZZBBBBAAAAAAAAAAAAAEMHHHHHHIIIIIIIIIIIIIQQQQQQQQQQQQQQQQQQKKKKKKKK
-EEEEEEEWWWWWWWWWWYYYYYYYYYYYYYYYIXNNNNXXXXXXXXJJJJJJJFFFFFFFFFFFFDDTZZZZZZBBBBBBAAJAAAAAAAAMMLLLLLLLLIIIXIIIIIIIIIQQQQQQQQQQQQQQQQQQKKKKKKKK
-EEEEEEKKWWWWWWWWWYYYYYYYYYYYYYYVAZXXXXXXXXXXXXJJJJJJJFFFFFFFFFFFWDDDZZZZZZBBBBBBAPJJAAAAAAAAMLLLLLLLLIIIIIIIIIIIIIIQQQQQQQQQQQQQQQKKKKKKKKKK
-EEEEKKKKKKKKWWWWTJYTYYYYYYYAYYAAAAFFVVVXXXXXXXXXJJJJJJFFFFFJFFBFGGGGDDZZZBBBBBBNPPPAARRRRMAMLLLLLLLLLIIIIIIIIIIIIIQQQQQQQQQQQQQQQQMMMKMBKKKB
-EEEKKKKKKKKKWWWTTTTTTTYYYAYAAAAAAAAAVVVXXXXXXXJJJJJJJJJFFFFJJFBBGGGGGGGGGGZBBBBPPPPPARRRRMMMLLLLLLLLIIIIIKKKKKKKKKKKKQQQQQPQQQMQMQIMMKMBBBBB
-GKKKKKKKKKKWWTTTTTTTTTYAYAAABAAAAAAAVVVVVXXVVBBJJJCCCJJJFFJJJMBBGGGGGGGGGGZBBBBPPPPPPRRRRMMMLLLLLLLLIIWIVKKKKKKKKKKKKQQQQPPQQQMQMMMMMMMBBBBB
-GKKKKKKKKKKWWTTTTTTRTTYAAAAAAAAAAAAAVVVVVVVVVVJJJCCCCCJJJJJJJMMMGGGGGGGGGGBBBBBPPPPPJRRRRLRRRRRRRRLLMMIIIKKKKKKKKKKKKQQPQPNNNQMMMMMMMMMCBBBB
-KKKKKKKKKKKKKETTTTTTTTAAAAAAAAAAAAAAAVVVVVVVVNCLJCCCCCJJJJJJJMMMGGGGGGGGGGBBBPBPPPPPJRRRRMRRRRRRRRLLVMMMVKKKKKKKKKKICCCPPPNNNQMMMMMMWWMMMMBB
-KKKKKKKKKKKKKEETTTXXTAAAAAAAAAAAAAAAAVVVVVVVVLCCCCCCCJJJJJJJJJMGGGGGGGGGGGBBBPPPPPPPPRRRRRRRRRRRRRLLVVVVVKKKKKKKKKKCCCPPPPPNNNMMMMMMMMMMMMBB
-KKKKKKKKKKKKKEEEEMXXXAAAAAAAAAAAAAAMAVVVVVVVLLLLLCCCCJJJJJJJJJMGGGGGGGGGGBBBBPPPPPPPPRRRRRRRRRRRRRLLVVVVVKKKKKKKKKKCCCPPPPPPNUMMMMMMMMMBBBBB
-KKKKKKKKKKKKEEEEMMMMXXAAAAAAAAAAAAAAVVVVVVVVLLLCCCCCCJJJJJJJJJJGGGGGGGGGGBBBBPPPPPPPPRRRRRRRRRRRRRLVVVVVVKKKKKKKKKKCCPPPPPPPCMMMMMMMMMMMBBBB
-KKKKKKKKYKKKKKKKKMMMMXAAQAAAAAAAAAAAVVVVVVVVLLGGCCCCCJJJJJJJJJJGGGGGGGGGGBBBBBPPPPPPPRRRRJRRRRRRRRLVVVVVVKKKKKKKKKKCCPPPPPMMMMMMMMMMMMMMBBBB
-KKKKKKKKKKKKKKKKMMMMKMMQQQAAAAAAAAAAAVVVVVVVVVCCCCCCCJJJJJJJJJJGGGGGGGGGGUBBBPPPPPPPPRRRRJJJMLLLLLLVVVVVVKKKKKKKKKKPPPPPPPPPMMMMMMMMMMMMBBBB
-ZKKKTTKKMMKKMMMMMMMMMMMMQQQAQAAAAAAAVVVVVVVVVVCCCCCJJJJJJJJJJJJGGGGGGGGGGUBBBBPPPPPAPPJJJJJJJJVVVZVVVVVVVKKKKKKKKKKKKKKKPPPPPMMMMMMMMMMMMBBB
-ZZZTTTKKMMMMMMMMMMMMMMMMMQQQQAAAAAAVVVVVVVVVVCCCCCCJJJJJJJJJJJYGGGGGGGGGGUUBPPPPPPPPEJJJJJJJJJVZZZVVVVVVVVWWKKKKKKKKKKKKPPPPPAAMMMMMMMBMMBBB
-ZZZTTTTMMMMMMMMTTTTMMMMQQQQQQAAAAOAAVVVVVVVVVXCKCCCCJJJJJJJJJJYGGGGGGGGGGBBBPPPPPJJJJJJJJJJJJZZZZZZVVVVVVVWWKKKKKKKKKKKKPPPQPAAMMMCMMMBMBBBB
-ZZZTZTTMMMMMMMMTTTTMQQMQQRRQQQQAOOOOVVVVVVVVVXVVCCCCCJJJJJJJJJUUUUUUUUUUUBBBBBBBBBBJJJJJJJJJJZZZZZZVVZZZZWWWKKKKKKCCCCPMPPPAPPAAMMCMBMBBBBBB
-ZZZZZZTMMMMMMMMTTTTTQQQQQRRQQQQOOOOOOOVOVVVVVVVVGGCCJJJJJJJJJJUUUUUUUUUUUBBBBBBBBBJJJJJJJJJJZZZZZZZZVZZZZZWWKKKKKKBCCCCPPPLAAAAAAABBBBBBBBBB
-ZZZZZZZCCMMMMMMTTTTTQQQQQRRQROOOOOOOOOVOVVIIIVRVGGJJJJJJJJJUUVUUUUUUUUUUUUUBBBBBBBBBJDDJJJJJJZZZZZZZZZZZZZZWKKKKKKBBBCPPPPAAAAAAABBBBBBBBBBB
-ZZZZZZCCCMMMMMTTTTTTQQQQQRQQRRROOOOOOOOOVVIIIVIGGJJJJJJJJJUUUUUUUUUUUUUUUBBBBBBBBBBJJJJJJJKKJJZZZZZZZZZZZZZWKKKKKKBBBKPKNKAAAAAAABBBBBBBBBBB
-ZZZAZZCCCCMMMDTTTTTQQQQQQQRRRRROOOOOOOOOOIIIIIIGGGJJJJJJJJJUUUUUUUUUUUUUVVVVVVVVVBRJJJJJJJKIIIIIIIIIZZZZZWWWKKKKKKBBFKKKKKAAAAAAAABBAABBBBBB
-ZZZAZZCCCCCMMDDKTTTQQQQQRRRRRROOOOOOOOOOOOIIIIIGAAJJJJJJJJJUUUUUUUUUVVYVVVVVVVVVVBRRJJJJJUUIIIIIIIIIZZZZZZWWKKKKKKBBBKKKIIIAAAAAAAAAAAAABBBB
-ZAAAZZCCCMMMMDTTTTTQQQQQRRRRRRSOOOOOOOOOGOIIIIIAAAAJJJJJJJJMMMUUJUUXVVVVVVVVVVVVVBRRJJJZIIIIIIIIIIIIZZZZZZWWKKKKKKBBKKIIIIHHHZAAAAAAAAAABBBB
-AAAROZOMMMMDDDGGTTTTQQRRRRRKRMOOOOOOOOOOOOIIAAAPAAAAAAAJJJJMVVVVVUUUVVVVVVVVVVVVVVRRRPJZIIIIIIIIIIIIZZZZZZWWWWWWWBBBKKKIHHHHHZAAAAAAAAAAAABB
-AAOOOOOOMMDDDDDTTTTTQQRTRYRKROOOOOOOOOOOOOIIIAAAAAAAAAJJJJJVVVVVCCCCCVVVVVVVVVVVVVRRPPJZIIIIIIIIIIIIZZZZZWWWWWTWWWWBAAAHHHHHHHHHHAAAAAAAAABB
-AAOOOOOODDDDDDQQTTTQQQRYYYRRYYOOOOOOOOOOOIIIIIAAAAAAAAAJJJVVVVVCCCCCCVVVVVVVVVVVVVVVVVWUIIIIIIIIIIIIZZZZZWWWWWTTWWWBBAAHHHHHHHHHMARAAAAOAAOC
-AAAOOOOODDDDDDDQQTTQQQQYYYYYYYYOOOOOOOZOOIIIIAAAAAAAAAJJJJJVVVVCVCCCCVVVVVVVVVVVVVVVPUWUIIIIIIIIIIIIZZZZZWWWWZZZZZZZZHAHHHHHHHHHHAAOOOOOOOOC
-AAAAAOJJDJDDDDDQQQQQQQQQYYOYYYYYYOOOOZZOZIIIIAAAAAAAAAJJJJJVVVVVVCCCCVVVVVVVVVVVVVVVNUUUIIIIIIIIIUGGZZZZWWWWWZZZZZZZZHHHHHHHHHHHMCOOOOOOOOOO
-AAAAAAAJJJJDDDQQQQQQQQQQQYOYYYYYYYDOOZZOZIIIIAAAAAAAAAJJJJJJJVVVVVCCCCVVVVVVVVVVVVVVNNFUIIIIIIIIIUZZZZZZZTTWWZZZZZZZZHHHHHHHHHHHHCOOOOOOOOOO
-AAAAAAAAJJDDDDDQQQQQQQQQQOOOWOOOODDOZZZZZZIIAAAAAAAAAAJJJJJJJVJVVDDDCCCVVVVVVVVVVVVNNNNUIIIIIIIIIUUUZZZZZPTTWTTTTWWHHHHHHHHHHHHHCCCCOOOOOOOO
-AAAAAAAAAJJJDDQQQQQQQQQQOOOOOOODDDDZZZZZZZIIAAAAAAAAAAAJJJJJJJJJVDDDCCCCDKVVVVVVVVNNNNUUUUIIIIIIIUUUUZZZZTTTTITTTTWHHHHHHHHHHHHHCCCCCCCOOOOO
-AAAAAAAAAAJBBQQBBBQQQQQOOOOOOOODZDDDZZZZZZIIAAAAAAAAAAAAJJJJJJJJDDDDDDDDDDDDVVVVVNNNNNNUUUIIIIIIIUUUUUZZZTTTTTTTTTHHHHHHHHHHHHHHCCCCCCCCOOOO
-AAAAAAAAAAJBBBBBEBBBQQQOOOOOOOODZZZZZZZZZZZAAAAAAAAAAAAJJJJJJJJDDDDDDDDDDDDVVVVVNNNNNNNUUUIIIIIIIUUUUUUZTTTTTTTTTTTTHHRRHHHHHHHCCCCCCCOOOOOO
-AAAAAAAAAAJBBBBBBBBBBOOOOOOOOOOOOOZZZZOZAAAAAAAAAAAAAAAAAJJJJJDDDDDDDDDDDDDVVVVVNNNNNNNNNNIIIIIIIUUUPPPKKKKTTTTTTTTTTHRRRHCCCHCCCCCCCCOOOOOO
-AAAAAAAAAABBBBBBBBBBBOOOOOOOOOOOOOZZZZOZAOOAAAAAAAAGGGJJAJJJJJDDDDDDDDDDDDVVVVVVVVNNNNNNNNIIIIIIIUUPPPPKKKKTTTTTTTTTTTTRTTCCCFCCCCCCCCCOOOOO
-AAAAPAAAAABBBBBBBBBBBYYOOOOOOOOOPOOOZOOOOOOOAAAAAAGGGGJJJJJJJDDDDDDDDDDDDDVVVVVVVVNNNNNXXNNNNNNNPPPPPPPKKKKTTTTTTTTTTTTTTCCCCCCCCCCCCCCCOOOO
-AAAAPAAAAABBBABBBBBBBBYOOOOOOOOOOOOOOOOOOOAAAALALAGGGGGJJJJJDDDDDDDDDDDDDDDVVVVOOVVVXXXXXNNNNNNNPZZZZZZZZZZKTKTTKSTTNLLTTNCCCCCCCCCCCCCCCOOO
-AAAAPPPAABBBBABBBBBBBBBBOOOOOOLLOOGGGOOOAAAAAALLLLLGGJJJJJJJDDDDDDDDDDDDDDDDVVOOOVVVWXXXXNNNNNNNPZZZZZZZZZZKKKKYYYYYYYYYYNNCCCCCCCCCCCCCCOOO
-AAAAPPAAABBBBABBBBBBBBBBOOOOOOLOOOGGGOOOOAAAAAAALLLLJJJJJJJJJLLLDDDDDDDDDDDDDVOOOOVOWXXXXNNNNNPPPZZZZZZZZZZZZKKYYYYYYYYYYNNCCCCCCCCCBBCCOOOO
-AAAPPPAPAAAABABBBBBBBBBPOXOOOOLOOOGGGOOOOOOAAAAALLLLLLJJJJJJJLLLLDDDDDDDDDOOOOOOOOOOWXXXXNNNNNNNPZZZZZZZZZZZZKAYYYYYYYYYYYYCCCCCCCXCBBCYOOOO
-APPPPPPPPAAAAABBBBBBBBFZZXZZKKOOOOGGGOOOOOOAAAAALLLLZLJJJLJJJJLLLDDDDDDDDUUOOOOOOOOOOORRRRONOOPPPZZZZZZZZZZZZKAYYYYYYYYYYYYNCCUCCCCVBBCCPOHO
-PPPPPPPPPAAAAAABBBBBBBBZZZZMOOOOOGGGGGOOOOOAAALLLLLLLLJJLLLLLLLLLLDDDDDDOOOOOOOOOOSOOOORDDOOOOPPMMMPPPPZZZZZZAAYYYYYYYYYYYYJMCCCCVVVBVPPPVVV
-PPPPPPPPPAAAAAABBBBBBZBZZZZMMGGGGGGGGGGGGOOAZALLLLLLLLLLLLLLLLLLLLDDDDDOOOOOOOOOOOOOOOORDOOOOOPPMMMPPPPZZZZZZAAYYYYYYYYYYYYJMMMCCCVVVVVVVVVV
-PPPPPPPPPAAAAAABBBBBBZZZZZZMMGGGGGGGGGGGGAAAZALLLZLLLLLLLLLLLLLLLLLDDDOOOOOOOOOOOOOOOOOOOOOOOOOPMMMPPPPPZZZZZAAYYYYYYYYYYYYJMJMMVVVVVVVVVVVV
-XPPPPPPPAAAAAABBBTBBYZZZZZZZZYGGGGGGGGGGGGAAZZZLZZZLLLLBBBBLLLLLLLDDDDDOOOOOOOOOOOOOOOOOOOOOMMMMMMMPPPPPZZZZZAOYYYYYYYYYYYJJJJVVVVVVVVVVVVVV
-XPPPPPPPAAJJAABAACBBYYZZZZYZYYGGGGGGGGGGGGAAZZZZZZLLBBBBBBBLLLLLBBBBBOOOOOOOOOOOOOOOOOOOOOOMMMMMMMMJJJPLZZZZZAZYYYYYYYYYYYJJJJJJBJVVVVVVVVVV
-XPPPPPPPJJJJAAAACCYBYYZYYYYYYYYGGGGGGGGGGGAAZZZZZZZZBBBBBBBLLLLLBBBBBBBBOOOOOOOOOOOOOOOOOOOMMMMMMMMMJJZZZZZZZZZYYYYYYYYYYYJJJJJJJJBVVVVVVVVV
-XPPXPPPPJJJJAAACCCYYYYZYHYHYYYHGGGGGGGGGGGAAAZZZZZZZBBBBBBBBBLLBBBBBBBBBOOOOOOOXOOOOOOOOOOOMMMMMMMMMJJZZZZZZZZZZOOOOJJJYYYJJJJJJVJBVVVVVVVVV
-XXXPPPPJJJJJJAACCYYHYYYHHHHHHHHGGGGGGGGGGGEAEZZZZZZZBBUBBBBBBBBBIIIBBBBOOOOOOOOOOOOOOOOOOOOOMMMMMMMMJJZZZZZZZZZOOOOOOJJYYYJJJJJJJJVVVVVVVVVV
-XXXPPPPPPJJJJPACCCHHHYHHHHHHHHHGGGGGGGGGGEEEEZZZZZZZZUUUUBBBUUBBBIIIBIBBBOOOOOOOOOOOOOOOOOOOMMMMMZZZZZZZZKKZZZZZOOOOCCYYYYYYJJJJJJVVVVVVVVVV
-XXXXPPPPPJJJPPAAAAHHHHHHHHHHHHYYYGGGGGEEEEEEZZZZZZZZZZUUUUUUUBBBIIIIIIIBBBOOOOMMMOOOOOOOOOYOMMMMMZZZZZZZZKKZZZZZZZOCCCYYYYYYJJJJJJVVQQVQQVVV
-XXXPPPPJJQJJPPPAAHHOHHHHHHHHHHYYYYEEWEEEEEEEEZZZZZZZZUUUUUUUUUUIIIIIIIIIBOOOOOMMMMOMOOSOOOOOOMMMMZZZZZZZZKKZZZZZZZCCCCYYYYYYJJJJJJJJOQQQVVVV
-XXXXXPPJJJJPPPPRROOOHHHHHHHHYYYYYYYEEEEEEEEEEEEZZZZUUUUUUUUUUUIIIIIIIIIIMMOOOMMMMMOMNNNOOOONNNNJEZZZZZZZZKKZZZZZZZCCCCYYYYYYJJJJJJJXQQQQQQQQ
-XXJXXJJJJJJPPPRRRROOHHHHHHHHYYYYEEEEEEEEEEEEEEEZZZZZUUUUUUIIIIIIIIIIIIBBMMOOMMMMMMMMNNNCNNNNNNJJFZZZZZZZZKKKZZZCCCCCCCYYYYYYJJJJJJJQQQQUQQQQ
-XXJJJJJJJJJPPYPVRJJHHPHHHHHHYYYYEEEEEEEEEEEEEEZZZZZZUUUUUTTIIIIIIINIIBBIMMMMMMMMMMMMNNNNNNNNNNFFFKKKKKKKKKKKZZZCCCCCCCYYYYYYJJJJJJCQQQQQQQQQ
-XXJJJJJJJJPPJPPPPPJJJPPPHHHHHYYYEEEEEEEEEEEEXPZZZZZZZZUUUTTINNNNINNKIBIIMMMMMMMMMMMMMNNNNNNNNFFFFFKKKKKKKKKKZZZCCCCCCCYYYYYYJJJJJQQQQQQQQQQQ
-XJJJJJJJPPPPPPPPPPJJJHHHHHHDHDYYYYYEEEEEEEEXXXZGGZZZZZUUUNNNNNNNNNNIIIIIMMMMMMMMMMMMNNNNNNNNNFFFFKKKKKKKKKKKKKKCCCCCCCYYYYYYYYYZZQQQQQQQQQQQ
-JJJJJJJPPPPPPPPPPJJJJJJJJHHDDDDYYYYYEEEEEEEXXGGGGEEZZZUUDNANNNNNNNAIIIIIMMMMMQMMMMMMNNNNNNNNFFFFFKKKKKKKKKKKKKKCCCCCCCYYYYYYYYYZQQQQQQQQQQQQ
-JJJJJJJJPPPPPPPPPJJJJJJJJJDDDDDYYYYEEEEEEXXXXXGGGGEEEZEUDNNNNNNNNAAAIIIIMMMMQQQQMMNNNNNNNNNNFFFFFCKKKKKKKKKKKKKKWCCCCIYYYYYYYYYZZZXQXQQQQQQQ
-JJJJJJPPPPPPPPPPPJJJJJJJJJDDDDDDDYYEEEEEEXXXXGGSEEEEEEEENNNNNNNNNVVAAIIMMMMQQQQQMMNNNNNNNNNNOFFFFFKKKKKKKKKKKUUKKUCCCCCCCZYYYYYZZZXXXXQQQQQQ
-HJJJJJPPPPPPPPPPPPPJJJJJJJJDDDDDDYYYEEEEEXXXSSSSEEEEEEEENNNNNNNNNNVAAAVVMQQQQQQQMMNNNNNNNHNNNFFFFFKKKKKKKKKKKUUUUUCCUUUUCCYYYYYXXXXXXXQQQQQQ
-HJJJJNPPPPPPPPPPFPPJJJJJJJJDDDDYYYYXXNNEXXXSSSSSEEEEEEENNNNNNNNNNVVVVAVVQQQQQQQQMNNNHHNNNHNNNFFFFFKKKKKKKKKKKUUUUUUUUUUUUUUUHZZZXXXXXQQQQQQQ
-HHJVJRPPPPPPPPPPPPPPLJJJJJJDDDLLLLXXXXXEXXXXXXXSUUUUNNNNNNNNNNNNNVVVVVVVQQQQQQQQMMMNHHHNNHHHHHHHHFHHHKKKKKKKKUUUUUUUUUUUUUHHHHHXXXXXXXQQQQQQ
-HRRRRRRPRPUPPPPPPPPLLLLJJJDDDLLLLUUUXXXXXXXXXXXXXXUUUUNNNNNNNNNNNVVVVVVVQQQQQQQQMMMMHHHHHHHHHHHHHHHHHKHHHKKKKUUUUUUUUUUUUHHHHHHHHXXXXXXXQQQQ
-HHHHRRRRRRRRRRPPPPWLLLLLLLLLDLLLLUUUVVVXXXCCCXXXXXXXKNNNNNNNNNNNNVVFVVVTTQQQQQQTMMMHHHHHHHHHHHHHHHHHHHHHHHKKUUUUUUUUUUUUUUHHHHHXXXXXHQHXQQQQ
-HRRRRRRRRRRRRRRPPBGLLLLLJLLLLLLLLULUVVVXXCCCCCXXXXXXKKNNNNNNNNNNVVVVTTTTTTTTQQQTTTMLLHHHHHHHHHHHHHQQQHHHHUKUUUUUUUUUUUUQUUHHHXXXXXXXHHHHQHAH
-RRRRRRRRRRRRRRRRPPGLLLJJJLJLLLLLLLLUVVVXCCCCCCXXXXXKKKNNNNNNNNNNVVVVTTTTTTTTTTTTTMMLLHLHHHHHHHHHHHQQQQHHHUUUUUUUUUUUUUUQUQHSXXXXXXXXXXHHHHHH
-RRRRRRRRRRRRRRRRRGGGLJJJJJJLLLLLLLVVVVVECCCCMMMMMMKKKKKKNNNNNNNNNVVTTTTTTTTTTTTTULLLLLLHHHHHHHHHQQQQQHHHUUUUUUUUUUUUUQQQQQQSXXXXXXXXXXXHHHHH
-RRRRRRRRRRRRRRRRRGGGGJJJJJJLLLLLLJVVVVVVGCCCMMMMMMKKKKKNNSSNNNNNNVTTTTTTTTTTTTTULLLLLLHHHHGGGGGHHQQQHHHHHUUUUUUUUUUUUQQQQQQSSXXXXXXXXXHHHHHH
-VRRRRRRRRRRRRRRRRGGGJJJJJJJLLLLLLJVVVVVVGCCCMMMMMMKKKKNNGSGNNNNNYYTTTTTTTTTTTTLLLLLLLLLHHHGGGGQQQQQQHQHHHUUUUUUUUUUUUQQQQQQQSXXXAXXXXXHHHHHH
-VVVRTRRRRRRRRRRRJGGGGQJJJJJJJLLLGVVVVVVGGCCCMMMMMMKKGKGGGGGGGGYYYYDTDTTTTTTTTTLLLLLLLLLHHHGGGGQQQQQQQQHHOOOOUUOOUUUUUQQQQQQQQXUAAXXMHHHHHHHH
-VRRRTTTTRFFRRJRRGGGGQQJUJJJJJJGLLGGGGVGGGGGCMMMMMMKKGGGGGGGFFFYYDDDDDDDDTTTTTTTLLLLLLLLLHHGGGGQQQQQQQQQOOOOOUUOOUOUZUQQQQPQQUUUTTTTTHHHHHHHH
-VVRAAATTYTFRYDDFGDGGQQJJJJJJGGGGGGGGGGGGGTTTTTTTMMKZGGGGFGGFFFYYDDDDDDDCTTTTTTTLLLLLLLLHHGGGGGGQQQQQQQOOOOOOOUOOOOOUGUUQQQQQUUUTTWTTKKNNHHNN
-VVUUATTTTTDDDDDDMDGGQQJJJJJJGDGGGGGGGGGGGTTTTTTTKKZZGIIIFFFFFFYDDDDDDDDDDDTTTTTLLLLLLLLGGGGGGGGQQQQQQQOOOOOOOOOOOOWUUUUUUUUUUUUUUUKKKKKNHNNN
-UUUUTTTTTQDDDDDDMDDDQQQQJJJJGDGGGGGGGGGGGTTTTTTTKKZZZIIIIFFFFDDDDDDDDDDHHHHTTTHLLLLLLLLIIGGGGGGQQQQQQOOOOOOOOOOOOOWKWWUUUUUUUUUUUUNNNNNNNNNN
-UUUUTTTTTTDDDDDDDDDDDQQJJJCCDDGGGGGGGGTTTTTTTTTTCZZZIIIIIIFFFFDDDDDDDEDHHHHTHHHHLLLLLLLLLGGGGGGQQQQOQOOOOOOOOWOOOWWWWUUUUUUUUUUUUGNNNNNNNNNN
-UUUUUTBTTTDDDDDDDDDDDDQJJJCCDDDGGDGGDGTTTTTTTTTTZZTZZIFFIFFFFFFDDDDDDDHHHHHHHHHLLLLLLLLLLGGGGGGQQQQOOOOOOOOOOWWWWWWWWUUUUUUUUUUUUNNNNNNNNNNN
-UUUUUUUTTTTDDDDDDDDDDQQQQDDDDDDGDDDDDDTTTTTTTTTTNZZZZIIFFFFFFFFFDDDDDDDHHHHHHHHHHHLLLLLGGGGGGGGGGGOOOOOOOOOOOWWWWWWWWUUUUUUUUUUUUUNNNNNNNNNN
-UUUUUUUTUUUDDDDDDDDDQQQQQQDDDDDDDDDDDDTTTTTTTTTTZZZZZFFFFFFFFFFFDFDDDZZZHHHHHHHHHHHHGGGGGGGGGGGGGOOOOOOOOOOOOOWWWWWWWWWWUUUUUUUUUNMNNNNNNNNN
-UUUUUUUUUUDQDDDDDDDDQQQQQQDDDDDDDDDDDDTTTTTTTTTTZZZZZZZFFFFFFFFFFFDDDDZZHHHHHHHHHHGGGGGGGGGGGGGGGOOOOOOOOOOOOWWWWWWWWWWUUUUUUUUUUNNNNNNNNNNN
-UUUUUUUUUDDDDDDDDDQQQQQQQDDDDDDDDDDDAZTTTTTTTTTTNZZZZFFFFFFFFFFFDDDDJJZZZHHHHFFFFFGGGGGGGGGGGGGGGOOOOOOOOOOOOOWWWWWWWWWUUUUUUUUUUUNNNNNNNNNN
-UUUUUUUDDDDDDDDDDDQQQQQQQDDDDDDDDDDDDETTTTTTTTTTNPZZZFFFFFFFFFFFFIIZZZZZZZZFFFFFFFXGGGGGGGGLGGGGGGGOOOAAOOOOOOWWWWWWWWWUUUUUUUUUDUDNNNNNNNNN
-UUUUUUUDDDDDDDDDDQQQQQQQQQDDDDDDDDDDDEEEVVVVVVVNNPZZZFFFFFFFFFFFDIDZZZZZZZZIIIIIIFXXXXGGGGGLLGGGGGOOOOOAOOOOOOOWWWWWWWUUUUUUUUDDDDDNNNNNNNNN
-UUUUUUUDDDDDDDDQQQQQQQQQQVVVDDDDDDDDEEEEVVVVHHPNPPPZZZZFFFFFFFWWDDDZZZZZZZZZIIIIIIJXXJJGJJLLLLGGLGGOWWFAOAOOAOWWWWWWWWWWUUUUUUDDDDDDNNNNNNNN
-UUUUUUUUDIDDDDDQQQQQQQQQQQVDDDDDDDDDDDEEEEVVVHPPPPPZZZZFZZZZZZWWDDDDDZZZZZZZIIIIIIJJJJJJJJLLLLLGLGGOWWFFFAAAAAWWWWWWWWWWUUZZUUUDDDDDDNNCNNNH
-UUUUUUUUPDDDDDJJQQQQQQQVVVVDDDDDDDDDDEEEEEEVGPPPPPPZPZZFZZZZZWNWWWDDDDZZZZZZIIIIIIIJJIIILLLLLLLLLGLOWFFFFAAAAAWWWWWWWWWWWUZZUDDDDDDDDDNNNNNN
-UUUUUUUUUDDDDDJJJQQQQQQQQQQQDTDDDDDDDDEEEEEPPPPPPPPPPPZZZZZZZWWWWWDDDDDZZZZZZNIIIIIIIIICCLLLLLLLLLLBFFFFFFFAAEWWWWWWWWWZZZZZZDDDDDDDDDDNNNNN
-UUUUGGUUEEDDDDJJJJJJJQQQQQQQQDDDQDDDDEEEEEEEKPPPPPPPPPPZZZZWWWWPWDDDDDDZZZZZZNNIIIIIIILLLLLLLLLLLLLLFFFFFFFFFEWWWWWWWWWZZZZZDDDDDDDDDDDNNNNN
-UUGUGGGEEEDJJJJJJJJJJJQQQQQQQDDDQQDDEEEEEEEEPPPPPPPPPPPZZWWWWWWWWDWDDDDZZZZZNNNNNIIIIILLLLLLLLLLLLLLLGFFFFFFEEEEEEWWWWZZQZZZDDDDDDDNNDNNNNNN
-UGGGGGGGEEEJJJJJJJJJJJQQQQQQQQDQQQEEEEEEEEEEPPPPPPPPPPZZZWWWWWWWWWWWDDDZZZZINNNIIIIIIILLLLLLLLLLLLMGGGFEEEEEEEEEEWWWWWWZZZZZZDDDDNNNNNNNNNNN
-UGGGGGGGGEJJJJJJJJQJQQQQQQQQQQQQQEEEEEEEEPPPPPPPPPPPPZZZZWWWWWWWWWWWDDZZNNNINNIIIIIIIILLGHLLLLLLLLLGGEEEEEEEEEEEEWWWWWZZZZZZZDDDDNNNNNNNNNNN
-UGGGGGGGGGQJJJJJJJQQQQQQQQQQQQQQQQEEYEEYYYOPPPPPPPPPZZZWWWWWWWWWWWWWDDDNNNNNNNNIIINIIIIAGLLLLLLLLLLLGEEEEEEEEEEECPPPZZZZZZZZZDDNNNNNNNNNNNNN
-SGGGGGGGGGJJJJJJJJQGQQQQQQQQQQQQQQQYYYYYYYYPYPPPBPZZZZZZWWWWWWWWWWWWNNNNNNNNNNNNNINIIIIGGLGGLLLLLLGGGGEEEEEEEEEECCPPPPPPZZZOZDNNNNNNNNNNNNNN
-GGGGGGGGGGAJJJJJJJJQQQQQQQQQQQQQQQQYYYYYYYYYYPPPPZZZZZZZZZWWWWWWWWWRRRNNNNNNNNNNNNNIGIIIGGGLLLLGGGGGGEEEEEEEEEMMPCPPPPPPPPZZPPPPNNNNNNNNNNNN
-GGGGGGGGGGGGJLJJJJJJDQQQTTTQQQQQQQQYYYYYYYYYYPYPYZZZZZZZZZZZWWWWWWWRRRNNNNNNNNNVVGGGGGGGGGGGLLGGGGGGGRNEEEEEEEMMPPPQPPPPPPPPPPPUNNNNNNNNNNNN
-GGGGGGGGGGGGLLJJJJJTTDTQTTTQQQQQQEEEEEYYYYYYYYYYYYZZZZJZZWWWWWWWWWWRRRNNNNNNNNNNNRLLGGGGGGGGGGGGGGRRRRRREKKEEEMMPPPPPPPPPPPPPPPPZZZZZNNNNNNN
-GGGGGGGGGGGGLYPPJJTTTTTTTQQQQQQQQEEEEEYYYYYYYYYYYYZZJJJJJJMWWWWWWWWWRRRRRNNNNRRRRRLLLGLGGGGGGGGGGGGRRRREEKKKKKKKUUPBPPPPPPPPZZZZZZZZNNNNNNNN
-GGGGGGGGGGGGYYPPJJTTTTTTTTTTQQQQQEEEEEYPYYYYYYYYYZZZJJJJJJMMMWWWWWWWRRRRRRRRRRRRRLLLLLLGGGGGGGGGGGGRRRRRERKKKKKKKUPBBPPPPPPPZZZZZZZZZNNNNNNN
-GGGGGGGGGGGYYYYYJJTTTTTTTTTQQQQQEOEEEEEYYYYYYYYYYZZZQJJJJJJJMWWWWWWWRRRRRRRRRRRRRLPLLLLLGGGGGGGGGGGRRERRRRRKKKKKKPPPPPPPPPPPZZZZZPZPPPPPNNNN
-GGGGGGGGGGGYYYYYYJPTTTTTTTTTQQQQEEEEEEEYYYYYYYYYYYZJJJJJJJJJWWWWWRRWRRRRRRRRRRRRRLLLLLLLLGGGGGGGGGGGGRRRRRRRTKKKKPPPPPPPPPPPZZZZPPPPPPPPNNPP
-GGGGGGGGGGYYYYYYYTTTTTTTTTTQQQQQEQEEEEEYYYYYYYYYYYZJJJJJJJJJJJWWRRRRRRRRRRRRRRRRRRRRLLLLLGGGGGGGGGGRRRRRRRRTTTTKTTPRPPPPPPPPZZFZPPPPPPPPNPPP
-GGGGGGGGGGKKKKKKKKTTTTTTTTQQQQQQQQEYEEHHHHHHYYYYYYJJJJJJJJJJJJJRRRRRRRRRRRRRRRRRRRRRLLLLGGGGGGGGGGGGGRRRRRRRTTTTTTTPPPPPPPPRZZFZPPPPPPPPPPPP
--- a/src/holt59/aoc/inputs/holt59/2024/day13.txt
+++ b/src/holt59/aoc/inputs/holt59/2024/day13.txt
--- a/src/holt59/aoc/inputs/holt59/2024/day14.txt
+++ b/src/holt59/aoc/inputs/holt59/2024/day14.txt
@@ -1,500 +0,0 @@
-p=99,12 v=19,18
-p=90,98 v=47,-52
-p=86,3 v=82,-13
-p=13,8 v=-67,-47
-p=36,45 v=28,65
-p=71,35 v=-8,-62
-p=75,8 v=-30,-21
-p=3,46 v=-38,-96
-p=1,89 v=78,18
-p=47,59 v=-63,99
-p=92,78 v=68,48
-p=42,31 v=78,94
-p=75,29 v=9,83
-p=46,12 v=-29,48
-p=80,16 v=-70,33
-p=18,66 v=57,-97
-p=60,12 v=89,-90
-p=21,36 v=-41,-78
-p=75,53 v=52,-62
-p=18,79 v=45,51
-p=20,29 v=63,-97
-p=22,68 v=23,1
-p=6,67 v=-24,-44
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--- a/src/holt59/aoc/inputs/holt59/2024/day15.txt
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-##################################################
-
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--- a/src/holt59/aoc/inputs/holt59/2024/day16.txt
+++ b/src/holt59/aoc/inputs/holt59/2024/day16.txt
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-#.#############.###.#.###.###.#.###.#.#.#########.#.#.#####.#####.#.###.#########.#.#.#####.###.#.###.#.#.#####.#.#####.#.#####.###.#.#####.#
-#S..................#.........#.....#.............#.........#.....................#.......#.........#...#.......#.........#.........#.......#
-#############################################################################################################################################
--- a/src/holt59/aoc/inputs/holt59/2024/day17.txt
+++ b/src/holt59/aoc/inputs/holt59/2024/day17.txt
@@ -1,5 +0,0 @@
-Register A: 53437164
-Register B: 0
-Register C: 0
-
-Program: 2,4,1,7,7,5,4,1,1,4,5,5,0,3,3,0
--- a/src/holt59/aoc/inputs/holt59/2024/day18.txt
+++ b/src/holt59/aoc/inputs/holt59/2024/day18.txt
--- a/src/holt59/aoc/inputs/holt59/2024/day19.txt
+++ b/src/holt59/aoc/inputs/holt59/2024/day19.txt
@@ -1,402 +0,0 @@
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Author	SHA1	Message	Date
Mikaël Capelle	377e501d34	Start fixing 2015 for new API. Some checks failed continuous-integration/drone/pr Build is failing Details continuous-integration/drone/push Build is failing Details	2024-12-08 12:13:41 +01:00
Mikaël Capelle	d1f4f5bed0	2024 day 8. Some checks failed continuous-integration/drone/push Build is failing Details continuous-integration/drone/pr Build is failing Details	2024-12-08 08:53:36 +01:00
Mikaël Capelle	03a950c485	Force flush API message. Some checks failed continuous-integration/drone/push Build is failing Details	2024-12-07 12:38:02 +01:00
Mikaël Capelle	22b1513271	Fix answer API model. Some checks failed continuous-integration/drone/push Build is failing Details	2024-12-07 12:21:57 +01:00
Mikaël Capelle	1f5b21a13a	2024 day 7. Some checks failed continuous-integration/drone/push Build is failing Details	2024-12-07 09:39:17 +01:00
Mikaël Capelle	8c707c00ba	2024 day 6 new API. Some checks failed continuous-integration/drone/push Build is failing Details	2024-12-06 21:15:18 +01:00
Mikael CAPELLE	ae4f42517c	Start adding progress. Some checks failed continuous-integration/drone/push Build is failing Details	2024-12-06 14:39:23 +01:00
Mikael CAPELLE	17432f7ac6	Refactor main entrypoint for UI.	2024-12-06 14:11:35 +01:00
Mikael CAPELLE	664dcfe7ba	Refactor 2023 for new system.	2024-12-06 14:11:35 +01:00
Mikael CAPELLE	a9bcf9ef8f	Start refactoring code better flexibility.	2024-12-06 14:11:32 +01:00
Mikael CAPELLE	1caf93b38b	Refactor 2024 day 6 to be a little bit faster. All checks were successful continuous-integration/drone/push Build is passing Details	2024-12-06 14:10:51 +01:00
Mikaël Capelle	f9a3dee20b	2024 day 6, brute force. Some checks failed continuous-integration/drone/push Build is failing Details	2024-12-06 06:50:35 +01:00
Mikael CAPELLE	1a1ff0c64d	Refactor 2024 day 5 without networkx. All checks were successful continuous-integration/drone/push Build is passing Details	2024-12-05 08:28:55 +01:00
Mikaël Capelle	d7621d09b5	2024 day 5. Some checks failed continuous-integration/drone/push Build is failing Details	2024-12-05 07:25:55 +01:00
Mikael CAPELLE	b89d29e880	Refactor 2024 day 4. All checks were successful continuous-integration/drone/push Build is passing Details	2024-12-04 09:31:47 +01:00
Mikaël Capelle	f1cd7e6c85	2024 day 4. All checks were successful continuous-integration/drone/push Build is passing Details	2024-12-04 07:35:22 +01:00
Mikael CAPELLE	d16ee7f9ad	Refactor 2024 day 3. All checks were successful continuous-integration/drone/push Build is passing Details	2024-12-03 15:22:54 +01:00
Mikaël Capelle	0c46d3ed18	Add .drone.yml for CI. (#2 ) All checks were successful continuous-integration/drone/push Build is passing Details	2024-12-03 13:38:03 +00:00
Mikael CAPELLE	acb767184e	Fix linting.	2024-12-03 14:11:29 +01:00
Mikael CAPELLE	cb0145baa2	2024 day 3.	2024-12-03 08:29:25 +01:00
Mikaël Capelle	a4ad0259a9	Fix 2024 day 2.	2024-12-02 18:44:50 +01:00
Mikael CAPELLE	82452c0751	Update Python dependencies.	2024-12-02 17:08:50 +01:00
Mikael CAPELLE	79cc208875	2024 day 2.	2024-12-02 15:42:56 +01:00
Mikaël Capelle	4dd2d5d9c9	2024 day 1.	2024-12-01 10:26:02 +01:00
Mikaël Capelle	def4305c1c	2015 day 22, part 1.	2024-12-01 10:25:49 +01:00
Mikaël Capelle	3edaa249fc	2015 day 21.	2024-01-20 17:57:37 +01:00
Mikaël Capelle	57fcb47fe9	2015 day 20.	2024-01-06 22:07:34 +01:00
Mikaël Capelle	cfa7718475	2015 day 19.	2024-01-06 21:35:48 +01:00
Mikaël Capelle	2d23e355b2	2015 day 18.	2024-01-06 16:43:35 +01:00
Mikaël Capelle	fab4899715	2015 day 17.	2024-01-06 15:46:43 +01:00
Mikaël Capelle	b6e20eefa3	2015 day 16.	2024-01-06 15:27:45 +01:00
Mikaël Capelle	872fd72dcd	2015 day 15.	2024-01-06 15:11:47 +01:00
Mikaël Capelle	98f28e96f8	2015 day 12, 13 & 14.	2024-01-06 14:56:30 +01:00
Mikaël Capelle	ed7aba80ad	2015 day 11.	2024-01-06 11:46:59 +01:00
Mikaël Capelle	e507dad5e0	2015 day 10.	2024-01-06 11:30:10 +01:00
Mikael CAPELLE	04172beb5a	2015 day 9.	2024-01-05 14:46:05 +01:00
Mikael CAPELLE	15ef67e757	2015 day 8.	2024-01-05 10:01:02 +01:00
Mikaël Capelle	cd0ada785c	2015 day 4, 5, 6, 7.	2024-01-04 21:05:42 +01:00
Mikael CAPELLE	42bd8d6983	2015 day 3.	2024-01-04 18:36:30 +01:00
Mikael CAPELLE	0567ab7440	2015 day 1 & 2.	2024-01-04 18:27:17 +01:00
Mikaël Capelle	7d2eb6b5ec	Faster 2023 day 24 (part 1).	2024-01-01 18:44:13 +01:00
Mikaël Capelle	3a9c7e728b	Minor cleaning 2023.	2023-12-30 19:35:06 +01:00
Mikaël Capelle	d002e419c3	2023 day 25.	2023-12-25 10:36:36 +01:00
Mikaël Capelle	19d93e0c1d	2023 day 24.	2023-12-25 10:36:29 +01:00
Mikaël Capelle	5c05ee5c85	2023 day 23.	2023-12-23 11:05:35 +01:00
Mikaël Capelle	103af21915	2021 day 9.	2023-12-22 21:26:13 +01:00
Mikaël Capelle	af2fbf2da1	2023 day 22.	2023-12-22 14:49:31 +01:00
Mikaël Capelle	c496ea25c9	2023 day 21, version 2.	2023-12-21 21:56:38 +01:00
Mikael CAPELLE	5f8c74fd1c	2023 day 21.	2023-12-21 16:47:43 +01:00
Mikael CAPELLE	dda2be2505	2023 day 20.	2023-12-20 14:27:25 +01:00
Mikael CAPELLE	12891194bb	Poetry stuff.	2023-12-19 17:45:33 +01:00
Mikaël Capelle	f15908876d	2023 day 19.	2023-12-19 10:41:53 +01:00
Mikael CAPELLE	5f5ebda674	2023 day 18.	2023-12-18 11:40:32 +01:00
Mikaël Capelle	5b30cc00d5	2023 day 17.	2023-12-17 18:19:49 +01:00
Mikaël Capelle	3a7f8e83dc	2023 day 16.	2023-12-16 18:33:11 +01:00
Mikaël Capelle	ba5b01c594	2023 day 15.	2023-12-15 16:18:21 +01:00
Mikaël Capelle	d0970c090b	2023 day 14.	2023-12-14 19:34:38 +01:00
Mikaël Capelle	8e90bf7002	2023 day 13.	2023-12-13 20:05:05 +01:00
Mikaël Capelle	9698dfcdac	2023 day 12.	2023-12-12 20:20:26 +00:00
Mikaël Capelle	1a6ab1cc0e	2023 day 11.	2023-12-11 10:25:56 +01:00
Mikaël Capelle	f5aabbee8f	2021 day 8.	2023-12-10 20:23:22 +01:00
Mikaël Capelle	6c00341ab0	2023 day 10.	2023-12-10 10:09:12 +01:00
Mikaël Capelle	755e0bd4b3	2021 day 7.	2023-12-09 12:52:46 +01:00
Mikaël Capelle	a52d077a40	2021 day 6.	2023-12-09 12:36:10 +01:00
Mikaël Capelle	3fc0f94b1c	2021 day 1-5.	2023-12-09 11:01:28 +01:00
Mikaël Capelle	8a0412f926	Clean 2022.	2023-12-09 09:54:53 +01:00
Mikaël Capelle	855efeb0aa	2023 day 9.	2023-12-09 08:08:46 +01:00
Mikaël Capelle	f2a65e03e5	2023 day 8.	2023-12-08 08:44:03 +01:00
Mikaël Capelle	759f47bfab	2023 day 7.	2023-12-08 08:38:08 +01:00
Mikael CAPELLE	999207b007	Clean 2023.	2023-12-06 08:47:59 +01:00
Mikaël Capelle	d92e4744a4	2023 day 6.	2023-12-06 07:14:26 +01:00
Mikael CAPELLE	8dbf0f101c	2023 day 5.	2023-12-05 13:41:17 +01:00
Mikaël Capelle	b8d8df06d6	2023 day 5 part 1.	2023-12-05 07:22:56 +01:00
Mikaël Capelle	825ebea299	Prepare 2023 days.	2023-12-04 19:32:41 +01:00
Mikaël Capelle	869cd4477f	2023 day 4.	2023-12-04 19:30:44 +01:00
Mikaël Capelle	fd777627d6	2023 day 3.	2023-12-03 09:09:25 +01:00
Mikaël Capelle	98f605f30e	2023 day 2.	2023-12-02 09:47:52 +01:00
Mikaël Capelle	d51fed283c	Fix 2023 day 1.	2023-12-01 20:27:42 +01:00
Mikael CAPELLE	e991cd8b04	2023: Day 1.	2023-12-01 10:41:13 +01:00
Mikael CAPELLE	10f67e6bfd	Post-christmas cleaning.	2023-01-06 13:48:18 +01:00
Mikaël Capelle	f291b0aa3f	Day 25.	2022-12-25 11:34:49 +01:00
Mikaël Capelle	0eb5b5a88f	Faster day 24.	2022-12-24 23:00:14 +01:00
Mikaël Capelle	2ec0a3d5f9	Day 24.	2022-12-24 20:50:37 +01:00
Mikael CAPELLE	0327a3f36a	Add day 23.	2022-12-23 13:25:22 +01:00
Mikaël Capelle	3732e70ef7	Ugly day 22.	2022-12-22 23:00:36 +01:00
Mikaël Capelle	b0cc6b4a46	Update day 22.	2022-12-22 18:46:59 +01:00
Mikael CAPELLE	8c24b9f9e2	Update day 22.	2022-12-22 17:22:56 +01:00
Mikael CAPELLE	dca6f6a08f	Update day 22.	2022-12-22 17:00:09 +01:00
Mikael CAPELLE	8d7a20f575	Day 22 part 1.	2022-12-22 14:10:30 +01:00
Mikael CAPELLE	3934dfd152	Start day 22.	2022-12-22 08:20:09 +01:00
Mikael CAPELLE	b656e8929e	Remove tqdm from day 19.	2022-12-21 17:39:43 +01:00
Mikael CAPELLE	c9c69f479b	Day 21.	2022-12-21 09:44:05 +01:00
Mikaël Capelle	72ebcfff1f	Clean day 20.	2022-12-20 23:39:26 +01:00
Mikaël Capelle	dd72bb3238	Add empty files for following days.	2022-12-20 21:51:38 +01:00
Mikael CAPELLE	c1dd74c57d	Faster day 20.	2022-12-20 18:27:09 +01:00
Mikael CAPELLE	1bf2de62c7	Day 20, slow.	2022-12-20 13:39:36 +01:00
Mikael CAPELLE	df808bc98a	Start day 20.	2022-12-20 12:35:01 +01:00
Mikaël Capelle	f46e190e98	Add all tests from previous days.	2022-12-19 22:32:15 +01:00
Mikaël Capelle	7f4a34b2d7	Day 19.	2022-12-19 22:09:20 +01:00
Mikael CAPELLE	ddebd26db2	Tmp	2022-12-19 18:46:16 +01:00
Mikael CAPELLE	01300e23b2	Start working on day 19.	2022-12-19 13:51:32 +01:00
Mikaël Capelle	b8e2faa8c9	Clean day 17.	2022-12-18 16:46:00 +01:00
Mikaël Capelle	ea5b757180	Day 18.	2022-12-18 09:57:35 +01:00
Mikaël Capelle	89a71c175f	Day 17.	2022-12-17 12:27:05 +01:00
Mikaël Capelle	9ffb332dea	Day 17.	2022-12-17 12:25:48 +01:00
Mikaël Capelle	8167ab34c7	Less BFS for day 16.	2022-12-16 22:56:34 +01:00
Mikaël Capelle	100df02a09	Better day 16.	2022-12-16 22:52:03 +01:00
Mikael CAPELLE	15b987a590	Update ugly day 16.	2022-12-16 18:40:21 +01:00
Mikael CAPELLE	b1578f5709	Add ugly day 16, to be improved...	2022-12-16 09:21:54 +01:00
Mikael CAPELLE	d80dbb6c7c	Update day 15.	2022-12-15 14:17:04 +01:00
Mikael CAPELLE	b679c1f895	Add day 15.	2022-12-15 09:36:19 +01:00
Mikael CAPELLE	e9d5f9747b	Add day 14.	2022-12-14 09:29:56 +01:00
Mikael CAPELLE	fe3aad7ddd	Clean day 9.	2022-12-13 11:18:31 +01:00
Mikael CAPELLE	7ac9981ae5	Clean day 13.	2022-12-13 08:59:53 +01:00
Mikael CAPELLE	652756a341	Add day 13.	2022-12-13 08:54:15 +01:00
Mikael CAPELLE	c7ef505f1b	Clean day 12.	2022-12-12 17:55:24 +01:00
Mikael CAPELLE	c55f6ac8e1	One to many Dijkstra.	2022-12-12 17:50:48 +01:00
Mikael CAPELLE	726a6aecac	Generic Dijkstra for day 12.	2022-12-12 15:59:19 +01:00
Mikael CAPELLE	291b188238	Clean day 12.	2022-12-12 10:48:37 +01:00
Mikael CAPELLE	289e3b7d02	Add day 12.	2022-12-12 09:35:12 +01:00
Mikaël Capelle	9820765e9c	Clean monkey code.	2022-12-11 11:50:23 +01:00
Mikaël Capelle	c6522de8a2	Add day 11.	2022-12-11 11:42:47 +01:00
Mikaël Capelle	80465e5e53	Add day 10.	2022-12-10 10:24:23 +01:00
Mikaël Capelle	af1428b5e1	Add day 9.	2022-12-09 10:45:00 +01:00
Mikael CAPELLE	fca283527d	Add 2022 day 8.	2022-12-08 08:59:25 +01:00
Mikael CAPELLE	0d37458ec5	Add 2021 day 5.	2022-12-07 18:41:39 +01:00
Mikael CAPELLE	198927e4a3	Add day 7.	2022-12-07 09:28:06 +01:00
Mikael CAPELLE	4192c98bba	Cleaning.	2022-12-06 15:28:46 +01:00
Mikael CAPELLE	7cb8317659	Add day 6.	2022-12-06 09:03:22 +01:00
Mikaël Capelle	f46cb51c60	Add day 4.	2022-12-05 19:09:55 +01:00
Mikael CAPELLE	261a396ae7	Add day 5.	2022-12-05 08:58:25 +01:00
Mikaël Capelle	4b3af377ab	Day 3.	2022-12-03 11:42:09 +01:00
Mikael CAPELLE	f697415ef2	More comments.	2022-12-02 15:06:37 +01:00
Mikael CAPELLE	ac2806b0fb	Comments.	2022-12-02 09:21:38 +01:00
Mikael CAPELLE	c62b8abfd0	Day 2.	2022-12-02 09:12:49 +01:00
				`@@ -1 +0,0 @@`
				`To continue, please consult the code grid in the manual. Enter the code at row 3010, column 3019.`