| Squence | Problem | Level | Language | Tags |
|---|---|---|---|---|
| DiDi | 最小K值 | Medium | java | Array |
| JD | 环状小山彼此看到对数 | Medium | java | Array |
| LCS1 | 最长公共子串 | Hard | java | DP |
| LCS2 | 最长公共子序列 | Hard | java | DP |
| 1 | Two Sum | Easy | java | Array |
| 2 | Add Two Numbers | Medium | java | Array |
| 3 | Longest Substring Without Repeating Characters | Medium | java | String |
| 10 | Regular Expression Matching | Hard | java | DP |
| 30 | Substring with Concatenation of All Words | Hard | java | String&&HashMap |
| 54 | Spiral Matrix | Medium | java | Array |
| 56 | Merge Intervals | Medium | java | Array |
| 62 | Unique Paths | Medium | java | DP |
| 63 | Unique Paths II | Medium | java | DP |
| 64 | Minimum Path Sum | Medium | java | DP |
| 72 | Edit Distance | Hard | java | DP |
| 84 | Largest Rectangle in Histogram | Hard | java | DP&单调栈 |
| 91 | Decode Ways | Medium | java | DP |
| 94 | Binary Tree Inorder Traversal | Medium | java | Tree |
| 95 | Unique Binary Search Trees II | Medium | java | Tree |
| 96 | Unique Binary Search Trees | Medium | java | Tree |
| 120 | Triangle | Medium | java | DP |
| 152 | Maximum Product Subarray | Medium | java | DP |
| 152 | House Robber | easy | java | DP |
| 213 | House RobberII | Medium | java | DP |
| 258 | Add Digits | Hard | java | String |
| 264 | Ugly NumberII | Medium | java | DP |
| 279 | Perfect Squares | Medium | java | DP |
| 300 | Longest Increasing Subsequence | Medium | java | DP |
| 303 | Range Sum Query | easy | java | DP |
| 304 | Range Sum Query 2D | Medium | java | DP |
| 530 | Minimum Absolute Difference in BST | Easy | java | Tree |
| 664 | Strange Printer | Hard | java | DP |
| 650 | 2 Keys Keyboard | Medium | java | DP |