51 lines
1.1 KiB
Python
51 lines
1.1 KiB
Python
|
#!/usr/bin/env python
|
||
|
|
|
||
|
|
import sys
|
||
|
|
from typing import List, Optional, cast
|
||
|
|
|
||
|
|
|
||
|
|
def solve(input: List[str]) -> int:
|
||
|
|
def find_illegal_char(input: str) -> Optional[int]:
|
||
|
|
chunks: List[str] = []
|
||
|
|
ends_to_start = {
|
||
|
|
")": "(",
|
||
|
|
"]": "[",
|
||
|
|
"}": "{",
|
||
|
|
">": "<",
|
||
|
|
}
|
||
|
|
|
||
|
|
for i, c in enumerate(input):
|
||
|
|
# Is it a chunk beginning
|
||
|
|
if c not in ends_to_start:
|
||
|
|
chunks.append(c)
|
||
|
|
continue
|
||
|
|
# Is it matching the last element on the chunk stack
|
||
|
|
current = chunks.pop()
|
||
|
|
# If not, corruption has been found
|
||
|
|
if ends_to_start[c] != current:
|
||
|
|
return i
|
||
|
|
|
||
|
|
return None
|
||
|
|
|
||
|
|
score = {
|
||
|
|
")": 3,
|
||
|
|
"]": 57,
|
||
|
|
"}": 1197,
|
||
|
|
">": 25137,
|
||
|
|
}
|
||
|
|
|
||
|
|
return sum(
|
||
|
|
score[line[cast(int, find_illegal_char(line))]]
|
||
|
|
for line in input
|
||
|
|
if find_illegal_char(line) is not None
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def main() -> None:
|
||
|
|
input = [line.strip() for line in sys.stdin.readlines()]
|
||
|
|
print(solve(input))
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
main()
|