advent-of-code/2025/d03/ex2/ex2.py

29 lines
722 B
Python
Executable file

#!/usr/bin/env python
import sys
def solve(input: list[str]) -> int:
def parse(input: list[str]) -> list[list[int]]:
return [[int(c) for c in line] for line in input]
def max_joltage(bank: list[int]) -> int:
joltage = 0
for length in range(12, 0, -1):
assert length <= len(bank) # Sanity check
first = bank.index(max(bank[: len(bank) - length + 1]))
joltage = joltage * 10 + bank[first]
bank = bank[first + 1 :]
return joltage
batteries = parse(input)
return sum(map(max_joltage, batteries))
def main() -> None:
input = sys.stdin.read().splitlines()
print(solve(input))
if __name__ == "__main__":
main()