这题目很有意思. 一开始分析的太复杂, 最后按照这个哥们的想法（http://yuanhsh.iteye.com/blog/2219891） 的来做，反而简单了许多。 设定T（n）的做法，最后题目化简以后就跟Fibona…

题目： Given n, generate all structurally unique BST’s (binary search trees) that store valu…

1. 题目 Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. 2. 思路…

题目描述 给定一个字符串，你需要反转字符串中每个单词的字符顺序，同时仍保留空格和单词的初始顺序。 示例 1: 输入: "Let's take LeetCode contest" 输出: "s'teL ekat edoCt…

  You are given two arrays (without duplicates) nums1 and nums2 where nums1…

Given a binary tree, find its minimum depth. The minimum depth is the number of nodes along the shortest path …

文章作者：Tyan 博客：noahsnail.com  |  CSDN  |  简书 1. 问题描述 Given an array of integers, return indi…

关于我的 Leetcode 题目解答，代码前往 Github：https://github.com/chenxiangcyr/leetcode-answers Leetcode上有一门很小的在线课程，叫算法基础(Algo…

My Submissions Total Accepted: 15789 Total Submissions: 29826 Difficulty: Easy Contributors: Admin You are pla…

LeetCode 84. Largest Rectangle in Histogram 单调栈应用 leetcode+ 循环数组，求右边第一个大的数字 求一个数组中右边第一个比他大的数（单调栈 LeetCode——寻找数…

24. Swap Nodes in Pairs 题目 Given a linked list, swap every two adjacent nodes and return its head. For example…

  Given an array of integers that is already sorted in ascending order, find two numbers such that they a…