src/holt59/aoc/2021/day1.py

@@ -1,14 +1,17 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
+
+
+class Solver(BaseSolver):
+    def solve(self, input: str) -> Iterator[Any]:
+        lines = input.splitlines()
 
         values = [int(line) for line in lines]
 
         # part 1
-answer_1 = sum(v2 > v1 for v1, v2 in zip(values[:-1], values[1:]))
+        yield sum(v2 > v1 for v1, v2 in zip(values[:-1], values[1:]))
-print(f"answer 1 is {answer_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:]))
+        yield sum(v2 > v1 for v1, v2 in zip(runnings[:-1], runnings[1:]))
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day10.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day11.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day12.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day13.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day14.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day15.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day16.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day17.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day18.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day19.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day2.py

@@ -1,16 +1,19 @@
-import sys
 from math import prod
-from typing import Literal, TypeAlias, cast
+from typing import Any, Iterator, Literal, TypeAlias, cast
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
 Command: TypeAlias = Literal["forward", "up", "down"]
 
+
+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:
@@ -31,11 +34,5 @@ def depth_and_position(use_aim: bool):
 
             return depth, pos
 
-
+        yield prod(depth_and_position(False))
-# part 1
+        yield prod(depth_and_position(True))
-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}")

src/holt59/aoc/2021/day20.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day21.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day22.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day23.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day24.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day25.py

@@ -1,11 +1,7 @@
-import sys
+from typing import Any, Iterator
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
 
-# part 1
-answer_1 = ...
-print(f"answer 1 is {answer_1}")
 
-# part 2
+class Solver(BaseSolver):
-answer_2 = ...
+    def solve(self, input: str) -> Iterator[Any]: ...
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day3.py

@@ -1,6 +1,7 @@
-import sys
 from collections import Counter
-from typing import Literal
+from typing import Any, Iterator, Literal
+
+from ..base import BaseSolver
 
 
 def generator_rating(
@@ -20,20 +21,23 @@ def generator_rating(
     return values[0]
 
 
-lines = sys.stdin.read().splitlines()
+class Solver(BaseSolver):
-
+    def solve(self, input: str) -> Iterator[Any]:
+        lines = input.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))
+            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}")
+        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)
-answer_2 = oxygen_generator_rating * co2_scrubber_rating
+        yield oxygen_generator_rating * co2_scrubber_rating
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day4.py

@@ -1,8 +1,13 @@
-import sys
+from typing import Any, Iterator
 
 import numpy as np
 
-lines = sys.stdin.read().splitlines()
+from ..base import BaseSolver
+
+
+class Solver(BaseSolver):
+    def solve(self, input: str) -> Iterator[Any]:
+        lines = input.splitlines()
 
         numbers = [int(c) for c in lines[0].split(",")]
 
@@ -26,7 +31,9 @@ for round, number in enumerate(numbers):
                 if winning_rounds[index][0] > 0:
                     continue
 
-        if np.any(np.all(marked[index], axis=0) | np.all(marked[index], axis=1)):
+                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]])),
@@ -38,8 +45,8 @@ for round, number in enumerate(numbers):
 
         # part 1
         (_, score) = min(winning_rounds, key=lambda w: w[0])
-print(f"answer 1 is {score}")
+        yield score
 
         # part 2
         (_, score) = max(winning_rounds, key=lambda w: w[0])
-print(f"answer 2 is {score}")
+        yield score

src/holt59/aoc/2021/day5.py

@@ -1,8 +1,13 @@
-import sys
+from typing import Any, Iterator
 
 import numpy as np
 
-lines: list[str] = sys.stdin.read().splitlines()
+from ..base import BaseSolver
+
+
+class Solver(BaseSolver):
+    def solve(self, input: str) -> Iterator[Any]:
+        lines = input.splitlines()
 
         sections: list[tuple[tuple[int, int], tuple[int, int]]] = [
             (
@@ -20,10 +25,8 @@ sections: list[tuple[tuple[int, int], tuple[int, int]]] = [
 
         np_sections = np.array(sections).reshape(-1, 4)
 
-x_min, x_max, y_min, y_max = (
+        x_max, 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()),
         )
 
@@ -41,8 +44,5 @@ for (x1, y1), (x2, y2) in sections:
                 for i, j in zip(y_rng, x_rng):
                     counts_2[i, j] += 1
 
-answer_1 = (counts_1 >= 2).sum()
+        yield (counts_1 >= 2).sum()
-print(f"answer 1 is {answer_1}")
+        yield (counts_2 >= 2).sum()
-
-answer_2 = (counts_2 >= 2).sum()
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day6.py

@@ -1,6 +1,11 @@
-import sys
+from typing import Any, Iterator
 
-values = [int(c) for c in sys.stdin.read().strip().split(",")]
+from ..base import BaseSolver
+
+
+class Solver(BaseSolver):
+    def solve(self, input: str) -> Iterator[Any]:
+        values = [int(c) for c in input.split(",")]
 
         days = 256
         lanterns = {day: 0 for day in range(days)}
@@ -12,10 +17,5 @@ for day in range(days):
             for day2 in range(day + 9, days, 7):
                 lanterns[day2] += lanterns[day]
 
-# part 1
+        yield sum(v for k, v in lanterns.items() if k < 80) + len(values)
-answer_1 = sum(v for k, v in lanterns.items() if k < 80) + len(values)
+        yield sum(lanterns.values()) + len(values)
-print(f"answer 1 is {answer_1}")
-
-# part 2
-answer_2 = sum(lanterns.values()) + len(values)
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day7.py

@@ -1,19 +1,22 @@
-import sys
+from typing import Any, Iterator
 
-positions = [int(c) for c in sys.stdin.read().strip().split(",")]
+from ..base import BaseSolver
+
+
+class Solver(BaseSolver):
+    def solve(self, input: str) -> Iterator[Any]:
+        positions = [int(c) for c in input.split(",")]
 
         min_position, max_position = min(positions), max(positions)
 
         # part 1
-answer_1 = min(
+        yield 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}")
 
         # part 2
-answer_2 = min(
+        yield 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}")

src/holt59/aoc/2021/day8.py

@@ -1,8 +1,7 @@
 import itertools
-import os
+from typing import Any, Iterator
-import sys
 
-VERBOSE = os.getenv("AOC_VERBOSE") == "True"
+from ..base import BaseSolver
 
 digits = {
     "abcefg": 0,
@@ -17,14 +16,18 @@ 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(
+        yield sum(
-    len(p) in lengths for line in lines for p in line.split("|")[1].strip().split()
+            len(p) in lengths
+            for line in lines
+            for p in line.split("|")[1].strip().split()
         )
-print(f"answer 1 is {answer_1}")
 
         # part 2
         values: list[int] = []
@@ -49,7 +52,9 @@ for line in lines:
             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:])]
+            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]
@@ -77,11 +82,8 @@ for line in lines:
                 digit = "".join(sorted(mapping[c] for c in number))
                 value = 10 * value + digits[digit]
 
-    if VERBOSE:
+            self.logger.info(f"value for '{line}' is {value}")
-        print(value)
 
             values.append(value)
 
-
+        yield sum(values)
-answer_2 = sum(values)
-print(f"answer 2 is {answer_2}")

src/holt59/aoc/2021/day9.py

@@ -1,18 +1,18 @@
-import sys
 from math import prod
+from typing import Any, Iterator
 
-values = [[int(c) for c in row] for row in sys.stdin.read().splitlines()]
+from ..base import BaseSolver
-n_rows, n_cols = len(values), len(values[0])
 
 
-def neighbors(point: tuple[int, int]):
+def neighbors(point: tuple[int, int], n_rows: int, n_cols: 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(start: tuple[int, int]) -> set[tuple[int, int]]:
+def basin(values: list[list[int]], start: tuple[int, int]) -> set[tuple[int, int]]:
+    n_rows, n_cols = len(values), len(values[0])
     visited: set[tuple[int, int]] = set()
     queue = [start]
 
@@ -23,22 +23,25 @@ def basin(start: tuple[int, int]) -> set[tuple[int, int]]:
             continue
 
         visited.add((i, j))
-        queue.extend(neighbors((i, j)))
+        queue.extend(neighbors((i, j), n_rows, n_cols))
 
     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)))
+            if all(
+                values[ti][tj] > values[i][j]
+                for ti, tj in neighbors((i, j), n_rows, n_cols)
+            )
         ]
 
-# part 1
+        yield sum(values[i][j] + 1 for i, j in low_points)
-answer_1 = sum(values[i][j] + 1 for i, j in low_points)
+        yield prod(sorted(len(basin(values, point)) for point in low_points)[-3:])
-print(f"answer 1 is {answer_1}")
-
-# part 2
-answer_2 = prod(sorted(len(basin(point)) for point in low_points)[-3:])
-print(f"answer 2 is {answer_2}")