.gitignore

@@ -1,2 +1 @@
 venv
-__pycache__

2021/day5.py

@@ -1,4 +1,7 @@
+# -*- encoding: utf-8 -*-
+
 import sys
+from collections import defaultdict
 
 import numpy as np
 
@@ -31,6 +34,7 @@ counts_1 = np.zeros((y_max + 1, x_max + 1), dtype=int)
 counts_2 = counts_1.copy()
 
 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)
 

2022/day1.py

@@ -0,0 +1,20 @@
+# -*- encoding: utf-8 -*-
+
+import sys
+
+lines = sys.stdin.readlines()
+
+# we store the list of calories for each elf in values, and we use the last element
+# of values to accumulate
+values: list[int] = [0]
+for line in lines:
+    if not line.strip():
+        values = values + [0]
+    else:
+        values[-1] += int(line.strip())
+
+# part 1
+print(f"answer 1 is {max(values)}")
+
+# part 2
+print(f"answer 2 is {sum(sorted(values)[-3:])}")

2022/day10.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import sys
 
 lines = sys.stdin.read().splitlines()

2022/day11.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import copy
 import sys
 from functools import reduce
@@ -5,6 +7,7 @@ from typing import Callable, Final, Mapping, Sequence
 
 
 class Monkey:
+
     id: Final[int]
     items: Final[Sequence[int]]
     worry_fn: Final[Callable[[int], int]]
@@ -94,7 +97,8 @@ def run(
     # number of inspects
     inspects = {monkey: 0 for monkey in monkeys}
 
-    for _ in range(n_rounds):
+    for round in range(n_rounds):
+
         for monkey in monkeys:
             for item in items[monkey]:
                 inspects[monkey] += 1

2022/day12.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import heapq
 import sys
 from typing import Callable, Iterator, TypeVar
@@ -42,6 +44,7 @@ def dijkstra(
         visited.add(current)
 
         for neighbor in neighbors(current):
+
             if neighbor in visited:
                 continue
 
@@ -57,6 +60,7 @@ def dijkstra(
 
 
 def make_path(parents: dict[Node, Node], start: Node, end: Node) -> list[Node] | None:
+
     if end not in parents:
         return None
 
@@ -105,6 +109,7 @@ def neighbors(
         (c_row, c_col - 1),
         (c_row, c_col + 1),
     ):
+
         if not (n_row >= 0 and n_row < n_rows and n_col >= 0 and n_col < n_cols):
             continue
 

2022/day13.py

@@ -1,27 +1,27 @@
+# -*- encoding: utf-8 -*-
+
 import json
 import sys
 from functools import cmp_to_key
-from typing import TypeAlias, cast
 
 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"]]
 
+def compare(lhs: list[int | list], rhs: list[int | list]) -> int:
 
-def compare(lhs: Packet, rhs: Packet) -> int:
     for lhs_a, rhs_a in zip(lhs, rhs):
         if isinstance(lhs_a, int) and isinstance(rhs_a, int):
             if lhs_a != rhs_a:
                 return rhs_a - lhs_a
         else:
             if not isinstance(lhs_a, list):
-                lhs_a = [lhs_a]  # type: ignore
+                lhs_a = [lhs_a]
             elif not isinstance(rhs_a, list):
-                rhs_a = [rhs_a]  # type: ignore
+                rhs_a = [rhs_a]
             assert isinstance(rhs_a, list) and isinstance(lhs_a, list)
-            r = compare(cast(Packet, lhs_a), cast(Packet, rhs_a))
+            r = compare(lhs_a, rhs_a)
             if r != 0:
                 return r
 

2022/day14.py

@@ -1,4 +1,7 @@
+# -*- encoding: utf-8 -*-
+
 import sys
+from collections import defaultdict
 from enum import Enum, auto
 from typing import Callable, cast
 
@@ -20,10 +23,10 @@ def print_blocks(blocks: dict[tuple[int, int], Cell]):
         blocks: Set of blocks to print.
     """
     x_min, y_min, x_max, y_max = (
-        min(x for x, _ in blocks),
+        min(x for x, y in blocks),
         0,
-        max(x for x, _ in blocks),
-        max(y for _, y in blocks),
+        max(x for x, y in blocks),
+        max(y for x, y in blocks),
     )
 
     for y in range(y_min, y_max + 1):
@@ -53,12 +56,13 @@ def flow(
         The input blocks.
     """
 
-    y_max = max(y for _, y in blocks)
+    y_max = max(y for x, y in blocks)
 
     while True:
         x, y = 500, 0
 
         while y <= y_max:
+
             moved = False
             for cx, cy in ((x, y + 1), (x - 1, y + 1), (x + 1, y + 1)):
                 if (cx, cy) not in blocks and fill_fn(cx, cy) == Cell.AIR:
@@ -113,10 +117,10 @@ print_blocks(blocks)
 print()
 
 x_min, y_min, x_max, y_max = (
-    min(x for x, _ in blocks),
+    min(x for x, y in blocks),
     0,
-    max(x for x, _ in blocks),
-    max(y for _, y in blocks),
+    max(x for x, y in blocks),
+    max(y for x, y in blocks),
 )
 
 # === part 1 ===

2022/day15.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import sys
 
 import numpy as np
@@ -5,6 +7,7 @@ import parse
 
 
 def part1(sensor_to_beacon: dict[tuple[int, int], tuple[int, int]], row: int) -> int:
+
     no_beacons_row_l: list[np.ndarray] = []
 
     for (sx, sy), (bx, by) in sensor_to_beacon.items():
@@ -34,7 +37,7 @@ def part2_intervals(
                 its.append((max(0, sx - dx), min(sx + dx, xy_max)))
 
         its = sorted(its)
-        _, e = its[0]
+        s, e = its[0]
 
         for si, ei in its[1:]:
             if si > e + 1:

2022/day16.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 from __future__ import annotations
 
 import heapq
@@ -67,6 +69,7 @@ def part_1(
     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))
     )
@@ -76,6 +79,7 @@ def part_1(
         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

2022/day17.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import sys
 from typing import Sequence, TypeVar
 
@@ -47,6 +49,7 @@ def build_tower(
     early_stop: bool = False,
     init: np.ndarray = np.ones(WIDTH, dtype=bool),
 ) -> tuple[np.ndarray, int, int, dict[int, int]]:
+
     tower = EMPTY_BLOCKS.copy()
     tower[0, :] = init
 
@@ -56,6 +59,7 @@ def build_tower(
     rock_count = 0
 
     for rock_count in range(n_rocks):
+
         if early_stop:
             if i_rock == 0 and (i_rock, i_jet) in done_at:
                 break
@@ -71,6 +75,7 @@ def build_tower(
             tower = np.concatenate([tower, EMPTY_BLOCKS], axis=0)
 
         while True:
+
             jet, i_jet = next_cycle(jets, i_jet)
 
             dx = 0

2022/day18.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import sys
 from typing import FrozenSet
 

2022/day19.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import sys
 from typing import Literal
 
@@ -86,6 +88,7 @@ for line in lines:
 
 
 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.,
     # in the first toy blueprint, we need at most 4 ore robots, 14 clay ones and 7
@@ -97,6 +100,7 @@ def run(blueprint: dict[Reagent, dict[Reagent, int]], max_time: int) -> int:
     state_after_t: dict[int, set[State]] = {0: [State()]}
 
     for t in range(1, max_time + 1):
+
         # list of new states at the end of step t that we are going to prune later
         states_for_t: set[State] = set()
 

2022/day2.py

@@ -1,5 +1,20 @@
+# -*- encoding: utf-8 -*-
+
 import sys
 
+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)))
+#
+
+# 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]
+
 
 def score_1(ux: int, vx: int) -> int:
     # here ux and vx are both moves: 0 = rock, 1 = paper, 2 = scissor
@@ -33,21 +48,8 @@ def score_2(ux: int, vx: int) -> int:
     return (ux + vx - 1) % 3 + 1 + vx * 3
 
 
-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)))
-#
-
-# 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
-print(f"answer 1 is {sum(score_1(*v) for v in values)}")
+print(f"score 1 is {sum(score_1(*v) for v in values)}")
 
 # part 2 - 14204
-print(f"answer 2 is {sum(score_2(*v) for v in values)}")
+print(f"score 2 is {sum(score_2(*v) for v in values)}")

2022/day20.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 from __future__ import annotations
 
 import sys
@@ -19,6 +21,7 @@ class Number:
 
 
 def decrypt(numbers: list[Number], key: int, rounds: int) -> int:
+
     numbers = numbers.copy()
     original = numbers.copy()
 

2022/day21.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import operator
 import sys
 from typing import Callable

2022/day22.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import re
 import sys
 from typing import Callable
@@ -44,7 +46,6 @@ 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: {
@@ -124,6 +125,7 @@ def wrap_part_2(y0: int, x0: int, r0: str) -> tuple[int, int, str]:
 
 
 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"

2022/day23.py

@@ -0,0 +1,3 @@
+# -*- encoding: utf-8 -*-
+
+import sys

2022/day24.py

@@ -0,0 +1,3 @@
+# -*- encoding: utf-8 -*-
+
+import sys

2022/day25.py

@@ -0,0 +1,3 @@
+# -*- encoding: utf-8 -*-
+
+import sys

2022/day3.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import string
 import sys
 
@@ -11,13 +13,13 @@ priorities = {c: i + 1 for i, c in enumerate(string.ascii_letters)}
 
 # part 1
 part1 = sum(priorities[c] for p1, p2 in parts for c in p1.intersection(p2))
-print(f"answer 1 is {part1}")
+print(f"score 1 is {part1}")
 
 # 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])
+    for c in set.intersection(*map(set, (lines[i : i + n_per_group])))
 )
-print(f"answer 2 is {part2}")
+print(f"score 2 is {part2}")

2022/day4.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import sys
 
 lines = [line.strip() for line in sys.stdin.readlines()]
@@ -10,8 +12,8 @@ def make_range(value: str) -> set[int]:
 
 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}")
+score_1 = sum(s1.issubset(s2) or s2.issubset(s1) for s1, s2 in sections)
+print(f"score 1 is {score_1}")
 
-answer_2 = sum(bool(s1.intersection(s2)) for s1, s2 in sections)
-print(f"answer 1 is {answer_2}")
+score_2 = sum(bool(s1.intersection(s2)) for s1, s2 in sections)
+print(f"score 1 is {score_2}")

2022/day5.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import copy
 import sys
 

2022/day6.py

@@ -1,5 +1,9 @@
+# -*- encoding: utf-8 -*-
+
 import sys
 
+data = sys.stdin.read().strip()
+
 
 def index_of_first_n_differents(data: str, n: int) -> int:
     for i in range(len(data)):
@@ -8,8 +12,5 @@ def index_of_first_n_differents(data: str, n: int) -> int:
     return -1
 
 
-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)}")

2022/day7.py

@@ -1,3 +1,5 @@
+# -*- encoding: utf-8 -*-
+
 import sys
 from pathlib import Path
 

2022/day8.py

@@ -1,7 +1,8 @@
+# -*- encoding: utf-8 -*-
+
 import sys
 
 import numpy as np
-from numpy.typing import NDArray
 
 lines = sys.stdin.read().splitlines()
 
@@ -26,7 +27,7 @@ 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:
+def viewing_distance(row_of_trees: np.ndarray, value: int) -> int:
     w = np.where(row_of_trees >= value)[0]
 
     if not w.size:

2022/day9.py

@@ -1,9 +1,12 @@
+# -*- encoding: utf-8 -*-
+
 import sys
 
 import numpy as np
 
 
 def move(head: tuple[int, int], command: str) -> tuple[int, int]:
+
     h_col, h_row = head
 
     if command == "L":
@@ -19,6 +22,7 @@ def move(head: tuple[int, int], command: str) -> tuple[int, int]:
 
 
 def follow(head: tuple[int, int], tail: tuple[int, int]) -> tuple[int, int]:
+
     h_col, h_row = head
     t_col, t_row = tail
 
@@ -29,7 +33,8 @@ def follow(head: tuple[int, int], tail: tuple[int, int]) -> tuple[int, int]:
 
 
 def run(commands: list[str], n_blocks: int) -> list[tuple[int, int]]:
-    blocks: list[tuple[int, int]] = [(0, 0) for _ in range(n_blocks)]
+
+    blocks = [(0, 0) for _ in range(n_blocks)]
     visited = [blocks[-1]]
 
     for command in commands:

README.md

@@ -1,36 +1,7 @@
-# Holt59 - Advent Of Code
+# Advent Of Code
 
-Installation (with [`poetry`](https://python-poetry.org/)):
+To run any script, you need to pipe the input:
 
 ```bash
-poetry install
-```
-
-To run any day:
-
-```bash
-holt59-aoc $day
-```
-
-You can use `-v` / `--verbose` for extra outputs in some case, `-t` / `--test` to run
-the code on the test data (one of the test data if multiple are present) or even
-`-u XXX` / `--user XXX` to run the code on a specific input after putting the input
-file under `src/holt59/aoc/inputs/XXX/$year/$day`.
-
-Full usage:
-
-```bash
-usage: Holt59 Advent-Of-Code Runner [-h] [-v] [-t] [-u USER] [-i INPUT] [-y YEAR] day
-
-positional arguments:
-  day                   day to run
-
-options:
-  -h, --help            show this help message and exit
-  -v, --verbose         verbose mode
-  -t, --test            test mode
-  -u USER, --user USER  user input to use
-  -i INPUT, --input INPUT
-                        input to use (override user and test)
-  -y YEAR, --year YEAR  year to run
+cat 2022/inputs/day2.txt | python 2022/day2.py
 ```

pyproject.toml

@@ -1,52 +0,0 @@
-[tool.poetry]
-name = "holt59-advent-of-code"
-version = "0.1.0"
-description = ""
-authors = ["Mikael CAPELLE <capelle.mikael@gmail.com>"]
-license = "MIT"
-readme = "README.md"
-packages = [{ include = "holt59", from = "src" }]
-
-[tool.poetry.dependencies]
-python = "^3.10"
-numpy = "^1.26.2"
-tqdm = "^4.66.1"
-parse = "^1.20.0"
-scipy = "^1.11.4"
-ortools = "^9.8.3296"
-sympy = "^1.12"
-networkx = "^3.2.1"
-
-[tool.poetry.scripts]
-holt59-aoc = "holt59.aoc.__main__:main"
-
-[tool.poe.tasks]
-lint-black = "black --check --diff src tests typings"
-lint-isort = "isort -c src tests typings"
-lint-ruff = "ruff src tests typings"
-lint-flake8 = "flake8 src tests typings"
-lint-pyright = "pyright src tests"
-lint-all.sequence = [
-    "lint-black",
-    "lint-isort",
-    "lint-flake8",
-    "lint-ruff",
-    "lint-pyright",
-]
-lint-all.ignore_fail = "return_non_zero"
-
-[tool.poetry.group.dev.dependencies]
-flake8 = "^6.1.0"
-flake8-black = "^0.3.6"
-black = "^23.12.0"
-pyright = "^1.1.341"
-mypy = "^1.7.1"
-isort = "^5.13.2"
-ruff = "^0.1.8"
-poethepoet = "^0.24.4"
-ipykernel = "^6.27.1"
-networkx-stubs = "^0.0.1"
-
-[build-system]
-requires = ["poetry-core"]
-build-backend = "poetry.core.masonry.api"

run.ps1

@@ -1,12 +1,5 @@
-param(
-    [switch]$Test,
-    [PSDefaultValue()]
-    [Parameter(Mandatory = $false)]
-    $Year = 2023,
-    [Parameter(Mandatory = $true, Position = 0)]
-    $Day)
+param([switch]$Test, $day)
 
 $folder = $Test ? "tests" : "inputs"
 
-$env:AOC_VERBOSE = $VerbosePreference -eq "Continue"
-Get-Content ".\$Year\$folder\day$Day.txt" | python ".\$Year\day$Day.py"
+Get-Content ".\2022\$folder\day$day.txt" | python ".\2022\day$day.py"

src/holt59/aoc/2015/day1.py

@@ -1,10 +0,0 @@
-import sys
-
-line = sys.stdin.read().strip()
-
-floor = 0
-floors = [(floor := floor + (1 if c == "(" else -1)) for c in line]
-
-
-print(f"answer 1 is {floors[-1]}")
-print(f"answer 2 is {floors.index(-1)}")

src/holt59/aoc/2015/day10.py

@@ -1,148 +0,0 @@
-import itertools
-import sys
-
-line = sys.stdin.read().strip()
-
-# see http://www.se16.info/js/lands2.htm for the explanation of 'atoms' (or elements)
-#
-# see also https://www.youtube.com/watch?v=ea7lJkEhytA (video link from AOC) and this
-# CodeGolf answer https://codegolf.stackexchange.com/a/8479/42148
-
-# fmt: off
-atoms = [
-    ("22", (0, )),  # 0
-    ("13112221133211322112211213322112", (71, 90, 0, 19, 2, )),  # 1
-    ("312211322212221121123222112", (1, )),  # 2
-    ("111312211312113221133211322112211213322112", (31, 19, 2, )),  # 3
-    ("1321132122211322212221121123222112", (3, )),  # 4
-    ("3113112211322112211213322112", (4, )),  # 5
-    ("111312212221121123222112", (5, )),  # 6
-    ("132112211213322112", (6, )),  # 7
-    ("31121123222112", (7, )),  # 8
-    ("111213322112", (8, )),  # 9
-    ("123222112", (9, )),  # 10
-    ("3113322112", (60, 10, )),  # 11
-    ("1113222112", (11, )),  # 12
-    ("1322112", (12, )),  # 13
-    ("311311222112", (66, 13, )),  # 14
-    ("1113122112", (14, )),  # 15
-    ("132112", (15, )),  # 16
-    ("3112", (16, )),  # 17
-    ("1112", (17, )),  # 18
-    ("12", (18, )),  # 19
-    ("3113112221133112", (66, 90, 0, 19, 26, )),  # 20
-    ("11131221131112", (20, )),  # 21
-    ("13211312", (21, )),  # 22
-    ("31132", (22, )),  # 23
-    ("111311222112", (23, 13, )),  # 24
-    ("13122112", (24, )),  # 25
-    ("32112", (25, )),  # 26
-    ("11133112", (29, 26, )),  # 27
-    ("131112", (27, )),  # 28
-    ("312", (28, )),  # 29
-    ("13221133122211332", (62, 19, 88, 0, 19, 29, )),  # 30
-    ("31131122211311122113222", (66, 30, )),  # 31
-    ("11131221131211322113322112", (31, 10, )),  # 32
-    ("13211321222113222112", (32, )),  # 33
-    ("3113112211322112", (33, )),  # 34
-    ("11131221222112", (34, )),  # 35
-    ("1321122112", (35, )),  # 36
-    ("3112112", (36, )),  # 37
-    ("1112133", (37, 91, )),  # 38
-    ("12322211331222113112211", (38, 0, 19, 42, )),  # 39
-    ("1113122113322113111221131221", (67, 39, )),  # 40
-    ("13211322211312113211", (40, )),  # 41
-    ("311322113212221", (41, )),  # 42
-    ("132211331222113112211", (62, 19, 42, )),  # 43
-    ("311311222113111221131221", (66, 43, )),  # 44
-    ("111312211312113211", (44, )),  # 45
-    ("132113212221", (45, )),  # 46
-    ("3113112211", (46, )),  # 47
-    ("11131221", (47, )),  # 48
-    ("13211", (48, )),  # 49
-    ("3112221", (60, 49, )),  # 50
-    ("1322113312211", (62, 19, 50, )),  # 51
-    ("311311222113111221", (66, 51, )),  # 52
-    ("11131221131211", (52, )),  # 53
-    ("13211321", (53, )),  # 54
-    ("311311", (54, )),  # 55
-    ("11131", (55, )),  # 56
-    ("1321133112", (56, 0, 19, 26, )),  # 57
-    ("31131112", (57, )),  # 58
-    ("111312", (58, )),  # 59
-    ("132", (59, )),  # 60
-    ("311332", (60, 19, 29, )),  # 61
-    ("1113222", (61, )),  # 62
-    ("13221133112", (62, 19, 26, )),  # 63
-    ("3113112221131112", (66, 63, )),  # 64
-    ("111312211312", (64, )),  # 65
-    ("1321132", (65, )),  # 66
-    ("311311222", (66, 60, )),  # 67
-    ("11131221133112", (67, 19, 26, )),  # 68
-    ("1321131112", (68, )),  # 69
-    ("311312", (69, )),  # 70
-    ("11132", (70, )),  # 71
-    ("13112221133211322112211213322113", (71, 90, 0, 19, 73, )),  # 72
-    ("312211322212221121123222113", (72, )),  # 73
-    ("111312211312113221133211322112211213322113", (31, 19, 73, )),  # 74
-    ("1321132122211322212221121123222113", (74, )),  # 75
-    ("3113112211322112211213322113", (75, )),  # 76
-    ("111312212221121123222113", (76, )),  # 77
-    ("132112211213322113", (77, )),  # 78
-    ("31121123222113", (78, )),  # 79
-    ("111213322113", (79, )),  # 80
-    ("123222113", (80, )),  # 81
-    ("3113322113", (60, 81, )),  # 82
-    ("1113222113", (82, )),  # 83
-    ("1322113", (83, )),  # 84
-    ("311311222113", (66, 84, )),  # 85
-    ("1113122113", (85, )),  # 86
-    ("132113", (86, )),  # 87
-    ("3113", (87, )),  # 88
-    ("1113", (88, )),  # 89
-    ("13", (89, )),  # 90
-    ("3", (90, )),  # 91
-]
-# fmt: on
-
-starters = [
-    "1",
-    "11",
-    "21",
-    "1211",
-    "111221",
-    "312211",
-    "13112221",
-    "1113213211",
-    "31131211131221",
-]
-
-
-def look_and_say_length(s: str, n: int) -> int:
-    if n == 0:
-        return len(s)
-
-    if s in starters:
-        return look_and_say_length(
-            "".join(f"{len(list(g))}{k}" for k, g in itertools.groupby(s)), n - 1
-        )
-
-    counts = {i: 0 for i in range(len(atoms))}
-    idx = next(i for i, (a, _) in enumerate(atoms) if s == a)
-    counts[idx] = 1
-
-    for _ in range(n):
-        c2 = {i: 0 for i in range(len(atoms))}
-        for i in counts:
-            for j in atoms[i][1]:
-                c2[j] += counts[i]
-        counts = c2
-
-    return sum(counts[i] * len(a[0]) for i, a in enumerate(atoms))
-
-
-answer_1 = look_and_say_length(line, 40)
-print(f"answer 1 is {answer_1}")
-
-answer_2 = look_and_say_length(line, 50)
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day11.py

@@ -1,49 +0,0 @@
-import itertools
-import sys
-
-
-def is_valid(p: str) -> bool:
-    if any(c in "iol" for c in p):
-        return False
-
-    if not any(
-        ord(a) + 1 == ord(b) and ord(b) + 1 == ord(c)
-        for a, b, c in zip(p, p[1:], p[2:])
-    ):
-        return False
-
-    if sum(len(list(g)) >= 2 for _, g in itertools.groupby(p)) < 2:
-        return False
-
-    return True
-
-
-assert not is_valid("hijklmmn")
-assert not is_valid("abbceffg")
-assert not is_valid("abbcegjk")
-assert is_valid("abcdffaa")
-assert is_valid("ghjaabcc")
-
-
-def increment(p: str) -> str:
-    if p[-1] == "z":
-        return increment(p[:-1]) + "a"
-    elif p[-1] in "iol":
-        return p[:-1] + chr(ord(p[-1]) + 2)
-    else:
-        return p[:-1] + chr(ord(p[-1]) + 1)
-
-
-def find_next_password(p: str) -> str:
-    while not is_valid(p):
-        p = increment(p)
-    return p
-
-
-line = sys.stdin.read().strip()
-
-answer_1 = find_next_password(line)
-print(f"answer 1 is {answer_1}")
-
-answer_2 = find_next_password(increment(answer_1))
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day12.py

@@ -1,27 +0,0 @@
-import json
-import sys
-from typing import TypeAlias
-
-JsonObject: TypeAlias = dict[str, "JsonObject"] | list["JsonObject"] | int | str
-
-
-def json_sum(value: JsonObject, ignore: str | None = None) -> int:
-    if isinstance(value, str):
-        return 0
-    elif isinstance(value, int):
-        return value
-    elif isinstance(value, list):
-        return sum(json_sum(v, ignore=ignore) for v in value)
-    elif ignore not in value.values():
-        return sum(json_sum(v, ignore=ignore) for v in value.values())
-    else:
-        return 0
-
-
-data: JsonObject = json.load(sys.stdin)
-
-answer_1 = json_sum(data)
-print(f"answer 1 is {answer_1}")
-
-answer_2 = json_sum(data, "red")
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day13.py

@@ -1,41 +0,0 @@
-import itertools
-import sys
-from collections import defaultdict
-from typing import Literal, cast
-
-import parse  # type: ignore
-
-
-def max_change_in_happiness(happiness: dict[str, dict[str, int]]) -> int:
-    guests = list(happiness)
-    return max(
-        sum(
-            happiness[o][d] + happiness[d][o]
-            for o, d in zip((guests[0],) + order, order + (guests[0],))
-        )
-        for order in map(tuple, itertools.permutations(guests[1:]))
-    )
-
-
-lines = sys.stdin.read().splitlines()
-
-happiness: dict[str, dict[str, int]] = defaultdict(dict)
-for line in lines:
-    u1, gain_or_loose, hap, u2 = cast(
-        tuple[str, Literal["gain", "lose"], int, str],
-        parse.parse(  # type: ignore
-            "{} would {} {:d} happiness units by sitting next to {}.", line
-        ),
-    )
-    happiness[u1][u2] = hap if gain_or_loose == "gain" else -hap
-
-
-answer_1 = max_change_in_happiness(happiness)
-print(f"answer 1 is {answer_1}")
-
-for guest in list(happiness):
-    happiness["me"][guest] = 0
-    happiness[guest]["me"] = 0
-
-answer_2 = max_change_in_happiness(happiness)
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day14.py

@@ -1,62 +0,0 @@
-import sys
-from dataclasses import dataclass
-from typing import Literal, cast
-
-import parse  # type: ignore
-
-
-@dataclass(frozen=True)
-class Reindeer:
-    name: str
-    speed: int
-    fly_time: int
-    rest_time: int
-
-
-lines = sys.stdin.read().splitlines()
-
-reindeers: list[Reindeer] = []
-for line in lines:
-    reindeer, speed, speed_time, rest_time = cast(
-        tuple[str, int, int, int],
-        parse.parse(  # type: ignore
-            "{} can fly {:d} km/s for {:d} seconds, "
-            "but then must rest for {:d} seconds.",
-            line,
-        ),
-    )
-    reindeers.append(
-        Reindeer(name=reindeer, speed=speed, fly_time=speed_time, rest_time=rest_time)
-    )
-
-target = 1000 if len(reindeers) <= 2 else 2503
-
-states: dict[Reindeer, tuple[Literal["resting", "flying"], int]] = {
-    reindeer: ("resting", 0) for reindeer in reindeers
-}
-distances: dict[Reindeer, int] = {reindeer: 0 for reindeer in reindeers}
-points: dict[Reindeer, int] = {reindeer: 0 for reindeer in reindeers}
-
-for time in range(target):
-    for reindeer in reindeers:
-        if states[reindeer][0] == "flying":
-            distances[reindeer] += reindeer.speed
-
-    top_distance = max(distances.values())
-    for reindeer in reindeers:
-        if distances[reindeer] == top_distance:
-            points[reindeer] += 1
-
-    for reindeer in reindeers:
-        if states[reindeer][1] == time:
-            if states[reindeer][0] == "resting":
-                states[reindeer] = ("flying", time + reindeer.fly_time)
-            else:
-                states[reindeer] = ("resting", time + reindeer.rest_time)
-
-
-answer_1 = max(distances.values())
-print(f"answer 1 is {answer_1}")
-
-answer_2 = max(points.values()) - 1
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day15.py

@@ -1,57 +0,0 @@
-import math
-import sys
-from typing import Sequence, cast
-
-import parse  # type: ignore
-
-
-def score(ingredients: list[list[int]], teaspoons: Sequence[int]) -> int:
-    return math.prod(
-        max(
-            0,
-            sum(
-                ingredient[prop] * teaspoon
-                for ingredient, teaspoon in zip(ingredients, teaspoons)
-            ),
-        )
-        for prop in range(len(ingredients[0]) - 1)
-    )
-
-
-lines = sys.stdin.read().splitlines()
-
-ingredients: list[list[int]] = []
-for line in lines:
-    _, *scores = cast(
-        tuple[str, int, int, int, int, int],
-        parse.parse(  # type: ignore
-            "{}: capacity {:d}, durability {:d}, flavor {:d}, "
-            "texture {:d}, calories {:d}",
-            line,
-        ),
-    )
-    ingredients.append(scores)
-
-total_teaspoons = 100
-calories: list[int] = []
-scores: list[int] = []
-
-for a in range(total_teaspoons + 1):
-    for b in range(total_teaspoons + 1 - a):
-        for c in range(total_teaspoons + 1 - a - b):
-            teaspoons = (a, b, c, total_teaspoons - a - b - c)
-
-            scores.append(score(ingredients, teaspoons))
-            calories.append(
-                sum(
-                    ingredient[-1] * teaspoon
-                    for ingredient, teaspoon in zip(ingredients, teaspoons)
-                )
-            )
-
-
-answer_1 = max(scores)
-print(f"answer 1 is {answer_1}")
-
-answer_2 = max(score for score, calory in zip(scores, calories) if calory == 500)
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day16.py

@@ -1,51 +0,0 @@
-import operator as op
-import re
-import sys
-from collections import defaultdict
-from typing import Callable
-
-MFCSAM: dict[str, int] = {
-    "children": 3,
-    "cats": 7,
-    "samoyeds": 2,
-    "pomeranians": 3,
-    "akitas": 0,
-    "vizslas": 0,
-    "goldfish": 5,
-    "trees": 3,
-    "cars": 2,
-    "perfumes": 1,
-}
-
-lines = sys.stdin.readlines()
-
-aunts: list[dict[str, int]] = [
-    {
-        match[1]: int(match[2])
-        for match in re.findall(R"((?P<compound>[^:, ]+): (?P<quantity>\d+))", line)
-    }
-    for line in lines
-]
-
-
-def match(operators: dict[str, Callable[[int, int], bool]]) -> int:
-    return next(
-        i
-        for i, aunt in enumerate(aunts, start=1)
-        if all(operators[k](aunt[k], MFCSAM[k]) for k in aunt)
-    )
-
-
-answer_1 = match(defaultdict(lambda: op.eq))
-print(f"answer 1 is {answer_1}")
-
-answer_2 = match(
-    defaultdict(
-        lambda: op.eq,
-        trees=op.gt,
-        cats=op.gt,
-        pomeranians=op.lt,
-        goldfish=op.lt,
-    )
-)
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day17.py

@@ -1,30 +0,0 @@
-import sys
-from typing import Iterator
-
-
-def iter_combinations(value: int, containers: list[int]) -> Iterator[tuple[int, ...]]:
-    if value < 0:
-        return
-
-    if value == 0:
-        yield ()
-
-    for i in range(len(containers)):
-        for combination in iter_combinations(
-            value - containers[i], containers[i + 1 :]
-        ):
-            yield (containers[i],) + combination
-
-
-containers = [int(c) for c in sys.stdin.read().split()]
-total = 25 if len(containers) <= 5 else 150
-
-combinations = [combination for combination in iter_combinations(total, containers)]
-
-answer_1 = len(combinations)
-print(f"answer 1 is {answer_1}")
-
-min_containers = min(len(combination) for combination in combinations)
-
-answer_2 = sum(1 for combination in combinations if len(combination) == min_containers)
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day18.py

@@ -1,66 +0,0 @@
-import itertools
-import sys
-
-import numpy as np
-from numpy.typing import NDArray
-
-grid0 = np.array([[c == "#" for c in line] for line in sys.stdin.read().splitlines()])
-
-# add an always off circle around
-grid0 = np.concatenate(
-    [
-        np.zeros((grid0.shape[0] + 2, 1), dtype=bool),
-        np.concatenate(
-            [
-                np.zeros((1, grid0.shape[1]), dtype=bool),
-                grid0,
-                np.zeros((1, grid0.shape[1]), dtype=bool),
-            ]
-        ),
-        np.zeros((grid0.shape[0] + 2, 1), dtype=bool),
-    ],
-    axis=1,
-)
-
-moves = list(itertools.product([-1, 0, 1], repeat=2))
-moves.remove((0, 0))
-
-jjs, iis = np.meshgrid(
-    np.arange(1, grid0.shape[0] - 1, dtype=int),
-    np.arange(1, grid0.shape[1] - 1, dtype=int),
-)
-iis, jjs = iis.flatten(), jjs.flatten()
-
-ins = iis[:, None] + np.array(moves)[:, 0]
-jns = jjs[:, None] + np.array(moves)[:, 1]
-
-
-def game_of_life(grid: NDArray[np.bool_]) -> NDArray[np.bool_]:
-    neighbors_on = grid[ins, jns].sum(axis=1)
-    cells_on = grid[iis, jjs]
-
-    grid = np.zeros_like(grid)
-    grid[iis, jjs] = (neighbors_on == 3) | (cells_on & (neighbors_on == 2))
-
-    return grid
-
-
-grid = grid0
-n_steps = 4 if len(grid) < 10 else 100
-for _ in range(n_steps):
-    grid = game_of_life(grid)
-
-answer_1 = grid.sum()
-print(f"answer 1 is {answer_1}")
-
-
-n_steps = 5 if len(grid) < 10 else 100
-grid = grid0
-for _ in range(n_steps):
-    grid[[1, 1, -2, -2], [1, -2, 1, -2]] = True
-    grid = game_of_life(grid)
-
-grid[[1, 1, -2, -2], [1, -2, 1, -2]] = True
-
-answer_2 = sum(cell for line in grid for cell in line)
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day19.py

@@ -1,56 +0,0 @@
-import sys
-from collections import defaultdict
-
-replacements_s, molecule = sys.stdin.read().split("\n\n")
-
-REPLACEMENTS: dict[str, list[str]] = defaultdict(list)
-for replacement_s in replacements_s.splitlines():
-    p = replacement_s.split(" => ")
-    REPLACEMENTS[p[0]].append(p[1])
-molecule = molecule.strip()
-
-generated = [
-    molecule[:i] + replacement + molecule[i + len(symbol) :]
-    for symbol, replacements in REPLACEMENTS.items()
-    for replacement in replacements
-    for i in range(len(molecule))
-    if molecule[i:].startswith(symbol)
-]
-
-answer_1 = len(set(generated))
-print(f"answer 1 is {answer_1}")
-
-inversion: dict[str, str] = {
-    replacement: symbol
-    for symbol, replacements in REPLACEMENTS.items()
-    for replacement in replacements
-}
-
-# there is actually only one way to create the molecule, and we can greedily replace
-# tokens with their replacements, e.g., if H => OH then we can replace OH by H directly
-# without thinking
-
-count = 0
-while molecule != "e":
-    i = 0
-    m2 = ""
-    while i < len(molecule):
-        found = False
-        for replacement in inversion:
-            if molecule[i:].startswith(replacement):
-                m2 += inversion[replacement]
-                i += len(replacement)
-                count += 1
-                found = True
-                break
-
-        if not found:
-            m2 += molecule[i]
-            i += 1
-
-    # print(m2)
-    molecule = m2
-
-
-answer_2 = count
-print(f"answer 2 is {count}")

src/holt59/aoc/2015/day2.py

@@ -1,20 +0,0 @@
-import sys
-
-import numpy as np
-
-lines = sys.stdin.read().splitlines()
-
-length, width, height = np.array(
-    [[int(c) for c in line.split("x")] for line in lines]
-).T
-
-lw, wh, hl = (length * width, width * height, height * length)
-
-answer_1 = np.sum(2 * (lw + wh + hl) + np.min(np.stack([lw, wh, hl]), axis=0))
-print(f"answer 1 is {answer_1}")
-
-answer_2 = np.sum(
-    length * width * height
-    + 2 * np.min(np.stack([length + width, length + height, height + width]), axis=0)
-)
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day20.py

@@ -1,28 +0,0 @@
-import itertools
-import sys
-
-target = int(sys.stdin.read())
-
-
-def presents(n: int, elf: int, max: int = target) -> int:
-    count = 0
-    k = 1
-    while k * k < n:
-        if n % k == 0:
-            if n // k <= max:
-                count += elf * k
-            if k <= max:
-                count += elf * (n // k)
-        k += 1
-
-    if k * k == n and k <= max:
-        count += elf * k
-
-    return count
-
-
-answer_1 = next(n for n in itertools.count(1) if presents(n, 10) >= target)
-print(f"answer 1 is {answer_1}")
-
-answer_2 = next(n for n in itertools.count(1) if presents(n, 11, 50) >= target)
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day21.py

@@ -1,66 +0,0 @@
-import itertools
-import sys
-from math import ceil
-from typing import TypeAlias
-
-Modifier: TypeAlias = tuple[str, int, int, int]
-
-WEAPONS: list[Modifier] = [
-    ("Dagger", 8, 4, 0),
-    ("Shortsword", 10, 5, 0),
-    ("Warhammer", 25, 6, 0),
-    ("Longsword", 40, 7, 0),
-    ("Greataxe", 74, 8, 0),
-]
-
-ARMORS: list[Modifier] = [
-    ("", 0, 0, 0),
-    ("Leather", 13, 0, 1),
-    ("Chainmail", 31, 0, 2),
-    ("Splintmail", 53, 0, 3),
-    ("Bandedmail", 75, 0, 4),
-    ("Platemail", 102, 0, 5),
-]
-
-RINGS: list[Modifier] = [
-    ("", 0, 0, 0),
-    ("Damage +1", 25, 1, 0),
-    ("Damage +2", 50, 2, 0),
-    ("Damage +3", 100, 3, 0),
-    ("Defense +1", 20, 0, 1),
-    ("Defense +2", 40, 0, 2),
-    ("Defense +3", 80, 0, 3),
-]
-
-
-lines = sys.stdin.read().splitlines()
-
-player_hp = 100
-
-boss_attack = int(lines[1].split(":")[1].strip())
-boss_armor = int(lines[2].split(":")[1].strip())
-boss_hp = int(lines[0].split(":")[1].strip())
-
-
-min_cost, max_cost = 1_000_000, 0
-for equipments in itertools.product(WEAPONS, ARMORS, RINGS, RINGS):
-    if equipments[-1][0] != "" and equipments[-2] == equipments[-1]:
-        continue
-
-    cost, player_attack, player_armor = (
-        sum(equipment[1:][k] for equipment in equipments) for k in range(3)
-    )
-
-    if ceil(boss_hp / max(1, player_attack - boss_armor)) <= ceil(
-        player_hp / max(1, boss_attack - player_armor)
-    ):
-        min_cost = min(cost, min_cost)
-    else:
-        max_cost = max(cost, max_cost)
-
-
-answer_1 = min_cost
-print(f"answer 1 is {answer_1}")
-
-answer_2 = max_cost
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day3.py

@@ -1,34 +0,0 @@
-import sys
-from collections import defaultdict
-
-line = sys.stdin.read().strip()
-
-
-def process(directions: str) -> dict[tuple[int, int], int]:
-    counts: dict[tuple[int, int], int] = defaultdict(lambda: 0)
-    counts[0, 0] = 1
-    x, y = (0, 0)
-
-    for c in directions:
-        match c:
-            case ">":
-                x += 1
-            case "<":
-                x -= 1
-            case "^":
-                y -= 1
-            case "v":
-                y += 1
-            case _:
-                raise ValueError()
-
-        counts[x, y] += 1
-
-    return counts
-
-
-answer_1 = len(process(line))
-print(f"answer 1 is {answer_1}")
-
-answer_2 = len(process(line[::2]) | process(line[1::2]))
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day4.py

@@ -1,16 +0,0 @@
-import hashlib
-import itertools
-import sys
-
-line = sys.stdin.read().strip()
-
-it = iter(itertools.count(1))
-answer_1 = next(
-    i for i in it if hashlib.md5(f"{line}{i}".encode()).hexdigest().startswith("00000")
-)
-print(f"answer 1 is {answer_1}")
-
-answer_2 = next(
-    i for i in it if hashlib.md5(f"{line}{i}".encode()).hexdigest().startswith("000000")
-)
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day5.py

@@ -1,36 +0,0 @@
-import sys
-
-VOWELS = "aeiou"
-FORBIDDEN = {"ab", "cd", "pq", "xy"}
-
-
-def is_nice_1(s: str) -> bool:
-    if sum(c in VOWELS for c in s) < 3:
-        return False
-
-    if not any(a == b for a, b in zip(s[:-1:], s[1::])):
-        return False
-
-    if any(s.find(f) >= 0 for f in FORBIDDEN):
-        return False
-
-    return True
-
-
-def is_nice_2(s: str) -> bool:
-    if not any(s.find(s[i : i + 2], i + 2) >= 0 for i in range(len(s))):
-        return False
-
-    if not any(a == b for a, b in zip(s[:-1:], s[2::])):
-        return False
-
-    return True
-
-
-lines = sys.stdin.read().splitlines()
-
-answer_1 = sum(map(is_nice_1, lines))
-print(f"answer 1 is {answer_1}")
-
-answer_2 = sum(map(is_nice_2, lines))
-print(f"answer 2 is {answer_2}")