题解 | 放苹果
def f(m,n): if m<0 or n<0: return 0 if m==1 or n==1: return 1 return f(m,n-1)+f(m-n,n) m,n=map(int,input().split()) print(f(m,n))
def f(m,n): if m<0 or n<0: return 0 if m==1 or n==1: return 1 return f(m,n-1)+f(m-n,n) m,n=map(int,input().split()) print(f(m,n))
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