题解 | #小乐乐走台阶#
小乐乐走台阶
https://www.nowcoder.com/practice/ebf04de0e02c486099d78b7c3aaec255
#include<stdio.h>//来自一只菜鸡 int x=1; int step(int n) { if(n<=1) { return 0; } x++; return step(n-1)+step(n-2); } int main() { int n; scanf("%d",&n); step(n); printf("%d",x); }