题目:http://www.nowcoder.com/practice/8c82a5b80378478f9484d87d1c5f12a4
C++
1 class Solution { 2 public: 3 int jumpFloor(int n) { 4 if (n == 1 || n == 2) return n; 5 return jumpFloor(n - 1) + jumpFloor(n - 2); 6 } 7 };