在此插入代码
def sa(n,c): s = 1 t = 0 b = c while n > 0: c = b while c > 0: c = c - 1 s = s * n n = n - 1 t = t + s print(t)
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-- coding: utf-8 --
def sa(n,c): s = 1 t = 0 b = c while n > 0: c = b while c > 0: c = c - 1 s = s * n n = n - 1 t = t + s print(t)