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n = int(input()) set_n = set(input().split()) b = int(input()) set_b = set(input().split())
print(len(set_n - set_b))
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Set .difference() Operation
You are viewing a single comment's thread. Return to all comments →
n = int(input()) set_n = set(input().split()) b = int(input()) set_b = set(input().split())
print(len(set_n - set_b))