Mikaël Capelle
87936d6422
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Co-authored-by: Mikael CAPELLE <mikael.capelle@thalesaleniaspace.com> Co-authored-by: Mikaël Capelle <capelle.mikael@gmail.com> Reviewed-on: #3
39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
from math import prod
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from typing import Any, Iterator, Literal, TypeAlias, cast
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from ..base import BaseSolver
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Command: TypeAlias = Literal["forward", "up", "down"]
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class Solver(BaseSolver):
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def solve(self, input: str) -> Iterator[Any]:
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lines = input.splitlines()
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commands: list[tuple[Command, int]] = [
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(cast(Command, (p := line.split())[0]), int(p[1])) for line in lines
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]
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def depth_and_position(use_aim: bool):
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aim, pos, depth = 0, 0, 0
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for command, value in commands:
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d_depth = 0
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match command:
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case "forward":
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pos += value
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depth += value * aim
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case "up":
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d_depth = -value
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case "down":
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d_depth = value
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if use_aim:
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aim += d_depth
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else:
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depth += value
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return depth, pos
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yield prod(depth_and_position(False))
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yield prod(depth_and_position(True))
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