13 lines
258 B
Python
13 lines
258 B
Python
def fact(x):
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temp = 1
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for i in range(1, x+1):
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temp *= i
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return temp
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def comb(n, r):
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return fact(n)//(fact(n-r)*fact(r))
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N = int(input())
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for i in range(N):
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k = int(input()) + 1
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h = int(input()) - 1
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print(comb(k+h, h))
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