39 lines
827 B
Python
Executable file
39 lines
827 B
Python
Executable file
#!/usr/bin/env python
|
|
|
|
import itertools
|
|
import sys
|
|
from dataclasses import dataclass
|
|
from typing import List, Set
|
|
|
|
|
|
@dataclass
|
|
class Entry:
|
|
signals: List[Set[str]]
|
|
outputs: List[Set[str]]
|
|
|
|
|
|
def solve(input: List[str]) -> int:
|
|
def parse_entry(input: str) -> Entry:
|
|
signals, outputs = input.split(" | ")
|
|
return Entry(
|
|
[set(s) for s in signals.split()], [set(o) for o in outputs.split()]
|
|
)
|
|
|
|
entries = [parse_entry(line) for line in input]
|
|
|
|
return sum(
|
|
itertools.chain.from_iterable(
|
|
map(lambda __: 1, filter(lambda d: len(d) in (2, 3, 4, 7), entry.outputs))
|
|
for entry in entries
|
|
)
|
|
)
|
|
|
|
|
|
def main() -> None:
|
|
input = [line.strip() for line in sys.stdin.readlines()]
|
|
print(solve(input))
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|