advent-of-code/2024/d01/ex1/ex1.py

26 lines
564 B
Python
Executable file

#!/usr/bin/env python
import sys
def solve(input: list[str]) -> int:
def parse(input: list[str]) -> tuple[list[int], list[int]]:
left, right = [], []
for line in input:
lhs, rhs = line.split()
left.append(int(lhs))
right.append(int(rhs))
return left, right
left, right = parse(input)
return sum(abs(lhs - rhs) for lhs, rhs in zip(sorted(left), sorted(right)))
def main() -> None:
input = sys.stdin.read().splitlines()
print(solve(input))
if __name__ == "__main__":
main()