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