题解 | #统计每个月兔子的总数#
统计每个月兔子的总数
https://www.nowcoder.com/practice/1221ec77125d4370833fd3ad5ba72395
#用到了递归函数，其中要注意全局变量的定义
def accrue(month, n, num1):
global i
for i in range(month + 2, n + 1):
num1 = num1 +1
num1 = accrue(i, n, num1)
return num1
while True:
try:
n = int(input())
num = accrue(1, n, 1)
print(num)
except:
break
