2 条题解
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0
qq472744836 LV 2 @ 2022-9-17 21:44:46
def F(n): if n2: return 1 elif n3: return 2 else:return F(n-1)+F(n-2) n=eval(input()) sum=F(n) print(sum)
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def F(n): if n2: return 1 elif n3: return 2 else:return F(n-1)+F(n-2) n=eval(input()) sum=F(n) print(sum)