标签：style c class blog code java
简单递推
附上代码：
1 class Solution {
2 public:
3 int climbStairs(int n) {
4 int f0 = 1, f1 = 1, f2 = 1;
5 for (int i = 2; i <= n; i++) {
6 f2 = f0 + f1;
7 swap(f0, f1);
8 f1 = f2;
9 }
10 return f2;
11 }
12 };
LeetCode --- Climbing Stairs,布布扣,bubuko.com
标签：style c class blog code java
原文地址：http://www.cnblogs.com/Stomach-ache/p/3754325.html
