题解 | #放苹果#
放苹果
http://www.nowcoder.com/practice/bfd8234bb5e84be0b493656e390bdebf
def f(m,n):
if n < 0 or m < 0:
return 0
elif n == 1:
return 1
else:
return f(m,n-1)+f(m-n,n)
while True:
try:
m,n=map(int,input().split())
print(f(m,n))
except:
break
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