牛客网-《剑指offer》-跳台阶

题目：http://www.nowcoder.com/practice/8c82a5b80378478f9484d87d1c5f12a4

C++

 class Solution {

 public:

     int jumpFloor(int n) {

         if (n ==  || n == ) return n;

         return jumpFloor(n - ) + jumpFloor(n - );

     }

 };