LeetCode - Climbing Stairs
- Description:
You are climbing a stair case. It takes n steps to reach to the top.
Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?
题目很好理解,类似斐波那契数列。
public class Solution { public int climbStairs(int n) { if(n <= 2) { return n; } int[] res = new int[n]; res[0] = 1; res[1] = 2; for(int i=2; i<n; i++) { res[i] = res[i-1] + res[i-2]; } return res[n-1]; } }
作者:Pickle
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致读者:坚持写博客不容易,写高质量博客更难,我也在不断的学习和进步,希望和所有同路人一道用技术来改变生活。觉得有点用就点个赞哈。
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