题解 | #兔子的数量#
兔子的数量
https://www.nowcoder.com/practice/8783056676de4396b0bf816a3561d62f
def fun(n): if n == 1: return 2 if n == 2: return 3 else: return fun(n - 1) + fun(n - 2) n = int(input()) print(fun(n))
兔子的数量
https://www.nowcoder.com/practice/8783056676de4396b0bf816a3561d62f
def fun(n): if n == 1: return 2 if n == 2: return 3 else: return fun(n - 1) + fun(n - 2) n = int(input()) print(fun(n))
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