9 lines
255 B
Python
9 lines
255 B
Python
for _ in range(int(input())):
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clothes = {}
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for _ in range(int(input())):
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name, type = input().split()
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clothes[type] = clothes.get(type,0) + 1
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result = 1
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for n in clothes.values():
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result *= (n+1)
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print(result-1) |