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#!/usr/bin/env python
import typing
class Solution:
def numberOfBeams(self, bank: typing.List[str]) -> int:
row_count = 0
result = 0
for row in bank:
count = row.count("1")
if count != 0:
result += row_count * count
row_count = row.count("1")
return result
def main():
solution = Solution()
print(solution.numberOfBeams(["011001", "000000", "010100", "00100"]))
print(solution.numberOfBeams(["000", "111", "000"]))
if __name__ == "__main__":
main()
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