题解 | #小乐乐走台阶#
小乐乐走台阶
https://www.nowcoder.com/practice/ebf04de0e02c486099d78b7c3aaec255
#include <stdio.h>
int f(int a)
{
if(a<4)
return a;
else
return f(a-1)+f(a-2);
}
int main() {
int a;
scanf("%d",&a);
int ret=f(a);
printf("%d",ret);
return 0;
}
