mirror of
https://github.com/Crocmagnon/advent-of-code.git
synced 2024-06-17 06:22:56 +02:00
83 lines
2.2 KiB
Python
83 lines
2.2 KiB
Python
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from dataclasses import dataclass
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from typing import List, Set
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def main(filename: str, expected_part_1: int = None, expected_part_2: int = None):
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print(f"\n+ Running on {filename}")
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with open(filename) as f:
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data = f.read().strip().split("\n")
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data = parse_data(data)
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solution_part_1 = solve_part_1(data)
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print(f"1. Found {solution_part_1}")
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if expected_part_1:
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assert expected_part_1 == solution_part_1
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solution_part_2 = solve_part_2(data)
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print(f"2. Found {solution_part_2}")
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if expected_part_2:
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assert expected_part_2 == solution_part_2
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@dataclass(frozen=True)
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class Point:
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x: int
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y: int
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@dataclass(frozen=True)
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class Segment:
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start: Point
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end: Point
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def is_horizontal(self):
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return self.start.y == self.end.y
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def is_vertical(self):
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return self.start.x == self.end.x
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def get_points(self) -> Set[Point]:
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if self.is_horizontal():
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start = min(self.start.x, self.end.x)
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end = max(self.start.x, self.end.x)
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return {Point(x, self.start.y) for x in range(start, end + 1)}
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elif self.is_vertical():
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start = min(self.start.y, self.end.y)
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end = max(self.start.y, self.end.y)
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return {Point(self.start.x, y) for y in range(start, end + 1)}
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return set()
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def parse_data(data: List[str]) -> List[Segment]:
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segments = []
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for line in data:
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start, end = line.split(" -> ")
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start = start.split(",")
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end = end.split(",")
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start = Point(int(start[0]), int(start[1]))
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end = Point(int(end[0]), int(end[1]))
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segment = Segment(start, end)
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segments.append(segment)
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return segments
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def solve_part_1(data: List[Segment]) -> int:
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seen_points = set()
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multiple_times = set()
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for segment in data:
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for point in segment.get_points():
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if point in seen_points:
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multiple_times.add(point)
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seen_points.add(point)
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return len(multiple_times)
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def solve_part_2(data: List[Segment]) -> int:
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return 0
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if __name__ == "__main__":
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main("inputs/day05-test1", expected_part_1=5)
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main("inputs/day05", expected_part_1=7297)
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