31 lines
567 B
Python
31 lines
567 B
Python
|
#!/usr/bin/env python
|
||
|
|
|
||
|
|
import itertools
|
||
|
|
import sys
|
||
|
|
from typing import List
|
||
|
|
|
||
|
|
|
||
|
|
def solve(input: List[int]) -> int:
|
||
|
|
gamma, epsilon = 0, 0
|
||
|
|
bit = 1
|
||
|
|
|
||
|
|
while any(map(bool, input)):
|
||
|
|
num_bits = sum(n % 2 for n in input)
|
||
|
|
if num_bits >= len(input) / 2:
|
||
|
|
gamma += bit
|
||
|
|
else:
|
||
|
|
epsilon += bit
|
||
|
|
input = [n // 2 for n in input]
|
||
|
|
bit *= 2
|
||
|
|
|
||
|
|
return gamma * epsilon
|
||
|
|
|
||
|
|
|
||
|
|
def main() -> None:
|
||
|
|
input = [int(line, 2) for line in sys.stdin.readlines()]
|
||
|
|
print(solve(input))
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
main()
|