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huxiaoman7
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#### Description

leetcode 1~400知识点&题型总结&leetcode对应题表

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# 50,684
Python
C++
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# LeetCode-book

## LeetCode题目分类

### 数组类题目

#### K-SUM类题目

| 序号 | 题目 | 难度 | 代码 | | ---- | ------------------------------------------------------------ | ------ | ----------------- | | 1 | Two Sum | easy | python、java、c++ | | 167 | Two Sum II - Input array is sorted | Easy | python、java、c++ | | 15 | 3Sum | Medium | python、java、c++ | | 16 | 3Sum Closest | Medium | python、java、c++ | | 259 | 3Sum Smaller | Medium | python、java、c++ | | 18 | 4Sum | Medium | python、java、c++ |

#### 区间问题

| 序号 | 题目 | 难度 | 代码 | | ---- | ------------------------------------------------------------ | ------ | :---------------- | | 56 | Merge Intervals | Medium | python、java、c++ | | 57 | Insert Interval | Hard | python、java、c++ | | 252 | Meeting Rooms | easy | python、java、c++ | | 253 | Meeting Rooms II | medium | python、java、c++ | | 352 | Data Stream as Disjoint Intervals | hard | python、java、c++ |

#### 子数组类题目

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- | | 78 | Subsets | medium | python、java、c++ | | 90 | Subsets II | medium | python、java、c++ | | 53 | Maximum Subarray | easy | python、java、c++ | | 152 | Maximum Product Subarray | medium | python、java、c++ | | 239 | Sliding Window Maximum | hard | python、java、c++ | | 295 | Find Median from Data Stream | hard | python、java、c++ | | 228 | Summary Ranges | medium | python、java、c++ | | 163 | Missing Ranges | medium | python、java、c++ | | 325 | Maximum Size Subarray Sum Equals k | medium | python、java、c++ | | 209 | Minimum Size Subarray Sum | medium | python、java、c++ | | 238 | Product of Array Except Self | medium | python、java、c++ | | 128 | Longest Consecutive Sequence | Hard | python、java、c++ |

#### Rotate类题目

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- | | 48 | Rotate Image | Medium | python、java、c++ | | 89 | Search in Rotated Sorted Array | Medium | python、java、c++ | | 189 | Rotate Array | Easy | python、java、c++ | | 81 | Search in Rotated Sorted Array II | Medium | python、java、c++ |

#### 数组排序

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- | | 88 | Merge Sorted Array | Easy | python、java、c++ | | 75 | Sort Colors | Medium | python、java、c++ | | 283 | Move Zeroes | Easy | python、java、c++ | | 376 | Wiggle Subsequence | medium | python、java、c++ | | 280 | Wiggle Sort | medium | python、java、c++ | | 324 | Wiggle Sort II | medium | python、java、c++ | | 215 | Kth Largest Element in an Array | medium | python、java、c++ | | 287 | Find the Duplicate Number | medium | python、java、c++ | | 334 | Increasing Triplet Subsequence | medium | python、java、c++ | | 400 | Nth Digit | easy | python、java、c++ | | 387 | First Unique Character in a String | easy | python、java、c++ | | 164 | Maximum Gap | hard | python、java、c++ | | 347 | Top K Frequent Elements | medium | python、java、c++ | | 243 | Shortest Word Distance | easy | python、java、c++ | | 244 | Shortest Word Distance II | medium | python、java、c++ | | 245 | Shortest Word Distance III | medium | python、java、c++ |

#### 双指针问题

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- | | 11 | Container With Most Water | Medium | python、java、c++ | | 41 | First Missing Positive | Hard | python、java、c++ | | 42 | Trapping Rain Water | Hard | python、java、c++ | | 84 | Largest Rectangle in Histogram | Hard | python、java、c++ | | 85 | Maximal Rectangle | Hard | python、java、c++ | | 243 | Shortest Word Distance | Easy | python、java、c++ | | 244 | Shortest Word Distance II | medium | python、java、c++ | | 245 | Shortest Word Distance III | Medium | python、java、c++ |

#### 二维数组

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- | | 48 | Rotate Image | Medium | python、java、c++ | | 54 | Spiral Matrix | Medium | python、java、c++ | | 73 | Set Matrix Zeroes | Medium | python、java、c++ | | 311 | Sparse Matrix Multiplication | medium | python、java、c++ | | 36 | Valid Sudoku | meidum | python、java、c++ | | 37 | Sudoku Solver | hard | python、java、c++ |

#### 动态规划

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- | | 62 | Unique Paths | Medium | python、java、c++ | | 63 | Unique Paths II | Medium | python、java、c++ | | 64 | Minimum Path Sum | Medium | python、java、c++ | | 120 | Triangle | Medium | python、java、c++ |

#### 二叉树

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- | | 105 | Construct Binary Tree from Preorder and Inorder Traversal | Medium | python、java、c++ | | 106 | Construct Binary Tree from Inorder and Postorder Traversal | Medium | python、java、c++ |

#### Math

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- | | 66 | Plus One | Easy | python、java、c++ | | 118 | Pascal's Triangle | Easy | python、java、c++ | | 119 | Pascal's Triangle II | Easy | python、java、c++ |

#### 基础

##### 基础题目

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- | | 217 | Contains Duplicate | Easy | python、java、c++ | | 219 | Contains Duplicate II | Easy | python、java、c++ | | 380 | Insert Delete GetRandom O(1) | Medium | python、java、c++ | | 381 | Insert Delete GetRandom O(1) - Duplicates allowed | Hard | python、java、c++ | | 31 | Next Permutation | Medium | |

##### Search类题

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- | | 33 | Search in Rotated Sorted Array | Medium | python、java、c++ | | 81 | Search in Rotated Sorted Array II | Medium | python、java、c++ | | 34 | Find First and Last Position of Element in Sorted Array | Medium | python、java、c++ | | 35 | Search Insert Position | Easy | python、java、c++ | | 74 | Search a 2D Matrix | Medium | python、java、c++ | | 79 | Word Search | Medium | python、java、c++ | | 153 | Find Minimum in Rotated Sorted Array | Medium | python、java、c++ | | 154 | Find Minimum in Rotated Sorted Array II | Hard | python、java、c++ | | 39 | Combination Sum | Medium | python、java、c++ | | 40 | Combination Sum II | Medium | python、java、c++ | | 216 | Combination Sum III | Medium | python、java、c++ | | 45 | Jump Game II | Hard | python、java、c++ | | 55 | Jump Game | Medium | python、java、c++ | | 121 | Best Time to Buy and Sell Stock | Easy | python、java、c++ | | 122 | Best Time to Buy and Sell Stock II | Easy | python、java、c++ | | 123 | Best Time to Buy and Sell Stock III | Hard | python、java、c++ | | 126 | Word Ladder II | Hard | python、java、c++ | | 162 | Find Peak Element | Medium | python、java、c++ | | 169 | Majority Element | Easy | python、java、c++ | | 229 | Majority Element II | Medium | python、java、c++ |

##### Remove类题目

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- | | 26 | Remove Duplicates from Sorted Array | Easy | python、java、c++ | | 27 | Remove Element | Easy | python、java、c++ | | 80 | Remove Duplicates from Sorted Array II | Medium | python、java、c++ |

#### 提高题目

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- | | 4 | Median of Two Sorted Arrays | Hard | python、java、c++ | | 289 | Game of Life | Medium | python、java、c++ |

#### 综合题

| 序号 | 题目 | 难度 | 代码 | | ------------ | ------------------------------------------------------------ | ------ | ----------------- |
| 274 | H-Index | medium | python、java、c++ | | 376 | Wiggle Subsequence | medium | python、java、c++ | | 277 | Find the Celebrity | medium | python、java、c++ | | 370 | Range Addition | medium | python、java、c++ | | 296 | Best Meeting Point | hard | python、java、c++ |

### 链表类题目

#### 删除类题目

| 序号 | 题目 | 难度 | 代码 | | ---------- | ------------------------------------------------------------ | ------ | ----------------- | | 19 | Remove Nth Node From End of List | medium | python、java、c++ | | 82 | Remove Duplicates from Sorted List II | Medium | python、java、c++ | | 83 | Remove Duplicates from Sorted List | Easy | python、java、c++ | | 203 | Remove Linked List Elements | Easy | python、java、c++ | | 237 | Delete Node in a Linked List | Easy | python、java、c++ |

#### 翻转类题目

| 序号 | 题目 | 难度 | 代码 | | ---------- | ------------------------------------------------------------ | ------ | ----------------- | | 25 | Reverse Nodes in k-Group | Hard | python、java、c++ | | 61 | Rotate List | Medium | python、java、c++ | | 92 | Reverse Linked List II | Medium | python、java、c++ | | 206 | Reverse Linked List | Easy | python、java、c++ |

#### 合并链表

| 序号 | 题目 | 难度 | 代码 | | ---------- | ------------------------------------------------------------ | ------ | ----------------- | | 2 | Add Two Numbers | medium | python、java、c++ | | 21 | Merge Two Sorted Lists | Easy | python、java、c++ | | 23 | Merge k Sorted Lists | Hard | python、java、c++ | | 445 | Add Two Numbers II | Medium | python、java、c++ |

#### 环

| 序号 | 题目 | 难度 | 代码 | | ---------- | ------------------------------------------------------------ | ------ | ----------------- | | 141 | Linked List Cycle | Easy | python、java、c++ | | 142 | Linked List Cycle II | Medium | python、java、c++ | | 708 | Insert into a Cyclic Sorted List | Medium | python、java、c++ |

#### 拆分链表

| 序号 | 题目 | 难度 | 代码 | | ---------- | ------------------------------------------------------------ | ------ | ----------------- | | 725 | Split Linked List in Parts | Medium | python、java、c++ | | 86 | Partition List | Medium | python、java、c++ |

#### 排序链表

| 序号 | 题目 | 难度 | 代码 | | ---------- | ------------------------------------------------------------ | ------ | ----------------- | | 143 | Reorder List | Medium | python、java、c++ | | 147 | Insertion Sort List | Medium | python、java、c++ | | 148 | Sort List | Medium | python、java、c++ |

#### 基础

| 序号 | 题目 | 难度 | 代码 | | ---------- | ------------------------------------------------------------ | ------ | ----------------- | | 109 | Convert Sorted List to Binary Search Tree | Medium | python、java、c++ | | 138 | Copy List with Random Pointer | Medium | | | 160 | Intersection of Two Linked Lists | Easy | python、java、c++ | | 234 | Palindrome Linked List | Easy | python、java、c++ | | 328 | Odd Even Linked List | Medium | python、java、c++ | | 369 | Plus One Linked List | Medium | python、java、c++ | | 379 | Design Phone Directory | Medium | python、java、c++ | | 426 | Convert Binary Search Tree to Sorted Doubly Linked List | Medium | python、java、c++ | | 430 | Flatten a Multilevel Doubly Linked List | Medium | python、java、c++ | | 707 | Design Linked List | Easy | python、java、c++ | | 817 | Linked List Components | Medium | python、java、c++ | | 876 | Middle of the Linked List | Easy | python、java、c++ |