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
n=int(input()) a1=1 a2=0 a3=0 if n==1: print(a1) else: for i in range(2,n+1): a3+=a2 a2=a1 a1=a3 print(a1+a2+a3)
统计每个月兔子的总数
https://www.nowcoder.com/practice/1221ec77125d4370833fd3ad5ba72395
n=int(input()) a1=1 a2=0 a3=0 if n==1: print(a1) else: for i in range(2,n+1): a3+=a2 a2=a1 a1=a3 print(a1+a2+a3)
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