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
month = int(input())
rabnum = {'能生':1,'不能生':[[3,1]]}
if month <= 3:
print("2")
else:
for i in range(4,month+1):
for j in rabnum['不能生']:
if i-j[0]+1 == 3:
rabnum['能生'] += j[1]
rabnum['不能生'].remove(j)
rabnum['不能生'].append([i,rabnum['能生']])
resault = 0
for i in rabnum['不能生']:
resault +=i[1]
print(resault+rabnum['能生'])
