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61 lines
1.5 KiB
61 lines
1.5 KiB
"""
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Advent of Code 2021 - Day 02
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Run with:
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python puzzles/day02.py inputs/day02.txt
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"""
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import pathlib
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import sys
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from typing import List, Tuple
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def part1(inputs: List[int], horizontal: int=0, depth: int=0) -> int:
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for line in inputs:
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step = line.split()
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if step[0] == "forward":
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horizontal += int(step[1])
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elif step[0] == "up":
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depth -= int(step[1])
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elif step[0] == "down":
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depth += int(step[1])
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return horizontal * depth
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def part2(inputs: List[int], horizontal: int=0, depth: int=0, aim: int=0) -> int:
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for line in inputs:
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step = line.split()
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if step[0] == "forward":
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horizontal += int(step[1])
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depth += aim * int(step[1])
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elif step[0] == "up":
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aim -= int(step[1])
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elif step[0] == "down":
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aim += int(step[1])
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return horizontal * depth
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def parse(inputs: str) -> List[List[str]]:
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"""Parse the input string"""
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return inputs.split("\n")
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def solve(path: str) -> Tuple[int, int]:
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"""Solve the puzzle"""
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puzzle_input = parse(pathlib.Path(path).read_text().strip())
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part1_result = part1(puzzle_input)
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part2_result = part2(puzzle_input)
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return part1_result, part2_result
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def main() -> None:
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for path in sys.argv[1:]:
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print(f"Input File: {path}")
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part1_result, part2_result = solve(path)
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print(f"Part 1 Result: {part1_result}")
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print(f"Part 2 Result: {part2_result}")
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if __name__ == "__main__":
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main()
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