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First solution in Creative category for Lightbulb Start Watching by Serg900vd
from datetime import datetime
from typing import List, Optional
def sum_light(els: List[datetime], start_watching: Optional[datetime] = datetime.min) -> int:
return sum(max((els[j + 1] - max(els[j], start_watching)).total_seconds(), 0) for j in range(0, len(els), 2))
May 5, 2022
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