8 lines
328 B
Python
8 lines
328 B
Python
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with open("input") as f:
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groups = [[x for x in group.split("\n")] for group in f.read().strip().split("\n\n")]
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print(sum(len(set().union(*(set(person) for person in group))) for group in groups))
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from functools import reduce
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print(sum(len(reduce(set.intersection, (set(person) for person in group))) for group in groups))
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