leetcode 这是我以前刷的leetcode题目，刚开始挺困难，后面刷多了，就有点节奏，做出来之后有一种成就感！ 我上传了的源码，放到github上，以后可能会用到！下面将它整理出来，和大家一起学习交流： 题号 题目内容 题目难度 42 Trapping Rain Water 中等 84 Largest Rectangle in Histogram 中等 *152 Maximum Product Subarray 难 85 Maximal Rectangle 中等 322 Coin Change 难 240 Search a 2D Matrix II 难 621 Task Scheduler 中等 236 Search a 2D Matrix II 中等 114 Flatten Binary Tree to Linked List 中等 221 Maximal Square 中等 279 Perfect Squares 中等 *337 House Robber III 中等 102 Binary Tree Level Order Traversal 中等 32 Longest Valid Parentheses 难 94 Binary Tree Inorder Traversal 中等 62 Unique Paths 中等 11 Container With Most Water 中等 287 Find the Duplicate Number 中等 *22 Generate Parentheses 中等 49 Group Anagrams 中等 Longest Consecutive Sequence 中等 *215 Kth Largest Element in an Array 中等 23 Merge k Sorted Lists 中等 *55 Jump Game 中等 139 Word Break 中等 48 Rotate Image 中等 300 Longest Increasing Subsequence 中等 55 Jump Game 中等 *64 Minimum Path Sum 中等 56 Merge Intervals 中等 72 Edit Distance 中等 *142 Linked List Cycle II 中等 39 Combination Sum 中等 200 Number of Islands 中等 394 Decode String 中等 560 Subarray Sum Equals K 中等 406 Queue Reconstruction by Height 中等 416 Partition Equal Subset Sum 中等 4 Median of Two Sorted Arrays 中等 *5 Longest Palindromic Substring 简单 538 Convert BST to Greater Tree 简单 572 Subtree of Another Tree 简单 543 Diameter of Binary Tree 简单 101 Symmetric Tree 简单 121 Best Time to Buy and Sell Stock 简单 581 Shortest Unsorted Continuous Subarray 简单 155 Min Stack 简单 160 Intersection of Two Linked Lists 简单 234 Palindrome Linked List 简单 53 Maximum Subarray 简单 148 Sort List 简单 647 Palindromic Substrings 简单 438 Find All Anagrams in a String 简单 70 Climbing Stairs 简单 437 Path Sum III 中等 *198 House Robber 简单 21 Merge Two Sorted Lists 简单 3 Longest Substring Without Repeating Characters 简单 2 Add Two Numbers 简单 15 Three Sum 简单 448 Find All Numbers Disappeared in an Array 中等 283 Move Zeroes 简单 169 Majority Element 简单 226 Invert Binary Tree 简单 494 Target Sum 简单 104 Maximum Depth of Binary Tree 简单 617 Merge Two Binary Trees/a> 简单 461 Hamming Distance 简单 771 Jewels and Stones 简单 26 Remove Duplicates from Sorted Array 简单 167 Two Sum II - Input array is sorted 简单 66 Plus one 简单 MergeArray 简单 347 Top K Frequent Elements 简单 *606 Construct String from Binary Tree 简单 35 Search Insert Position 简单 206 Reverse Linked List 简单 141 Linked List Cycle 简单 *268 Missing Number 简单 *521 Longest Uncommon Subsequence I 简单 917 Reverse Only Letters 简单 Binary Search Modification 简单 136 Single Number 简单 7 Reverse Integer 简单 349 Intersection of Two Arrays 简单 350 Intersection of Two Arrays II 简单 Detect Capital 简单 Reverse String II 简单 1 Two Sum 简单 19 Remove Nth Node From End of List 简单 Find Middle Node 简单 Sorted Question 简单 * Compute Digit 简单 3 Pairs Of Parentheses 中等 Joseph Problem 简单 其中加了*表示做出来花了很长时间，有点困难！题目没有进行分类，后期将对题目整理分类！