advent-of-code/2020/d03/ex1/ex1.py

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2020-12-03 18:21:57 +01:00
#!/usr/bin/env python
import sys
from typing import List, Tuple
def solve(trees: List[str], delta: Tuple[int, int]) -> int:
x, y = 0, 0
sum = 0
while True:
x += delta[0]
y += delta[1]
if y >= len(trees):
break
sum += trees[y][x % len(trees[0])] == "#"
return sum
def main() -> None:
input = [line.strip() for line in sys.stdin.readlines()]
print(solve(input, (3, 1)))
if __name__ == "__main__":
main()