这个仓库包含一些极客时间专栏的相关内容。
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 206 | Reverse Linked List | Java, Python | Easy |
| 141 | Linked List Cycle | Java, Python | Easy |
| 24 | Swap Nodes in Pairs | Java, Python | Medium |
| 203 | Remove Linked List Elements | Java, Python | Easy |
| 27 | Remove Element | Java, Python | Easy |
| 26 | Remove Duplicates from Sorted Array | Java, Python | Easy |
| 11 | Container With Most Water | Java, Python | Medium |
| 83 | Remove Duplicates from Sorted List | Java, Python | Easy |
| 160 | Intersection of Two Linked Lists | Java, Python | Easy |
| 217 | Contains Duplicate | Java, Python | Easy |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 232 | Implement Queue using Stacks | Java, Python, Python | Easy |
| 225 | Implement Stack using Queues | Java, Python | Easy |
| 20 | Valid Parentheses | Java, Python | Easy |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 703 | Kth Largest Element in a Stream | Java, Python | Easy |
| 239 | Sliding Window Maximum | Java, Python | Hard |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 242 | Valid Anagram | Java, Python | Easy |
| 15 | Three Sum | Java, Python | Meidum |
| 1 | Two Sum | Java, Python | Easy |
| 167 | Two Sum II - Input array is sorted | Java, Python | Easy |
| 653 | Two Sum IV - Input is a BST | Java, Python | Easy |
| 136 | Single Number | Java, Python | Easy |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 236 | Lowest Common Ancestor of a Binary Tree | Java, Python | Medium |
| 235 | Lowest Common Ancestor of a Binary Search Tree | Java, Python | Easy |
| 111 | Minimum Depth of Binary Tree | Java, Python | Easy |
| 104 | Maximum Depth of Binary Tree | Java, Python | Easy |
| 102 | Binary Tree Level Order Traversa | Java, Python | Medium |
| 98 | Validate Binary Search Tree | Java, Python | Medium |
| 606 | Construct String from Binary Tree | Java, Python | Easy |
| 112 | Path Sum | Java, Python | Easy |
| 107 | Binary Tree Level Order Traversall II | Java, Python | Easy |
| 100 | Same Tree | Java, Python | Easy |
| 108 | Convert Sorted Array to Binary Search Tree | Java, Python | Easy |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 1137 | N-th Tribonacci Number | Python | Easy |
| 169 | Majority Element | Java, Python | Easy |
| 50 | Pow(x, n) | Java, Python | Medium |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 122 | Best Time to Buy and Sell Stock II | Java, Python | Easy |
| 121 | Best Time to Buy and Sell Stock | Java, Python | Easy |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 111 | Minimum Depth of Binary Tree | Java, Python | Easy |
| 104 | Maximum Depth of Binary Tree | Java, Python | Easy |
| 102 | Binary Tree Level Order Traversa | Java, Python | Medium |
| 22 | Generate Parentheses | Java, Python | Medium |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 51 | N-Queens | Java, Python | Hard |
| 36 | Valid Sudoku | Java | Medium |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 69 | Sqrt(x) | Java, Python | Easy |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 212 | Word Search II | Java, Python | Hard |
| 208 | Implement Trie (Prefix Tree) | Java, Python | Medium |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 338 | Counting Bits | Java, Python | Medium |
| 231 | Power of Two | Java, Python | Easy |
| 191 | Number of 1 Bits | Java, Python | Easy |
| 52 | N-Queens II | Java, Python | Hard |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 368 | Largest Divisible Subset | Python | Medium |
| 322 | Coin Change | Java, Python | Medium |
| 300 | Longest Increasing Subsequence | Java, Python | Easy |
| 152 | Maximum Product Subarray | Java, Python | Medium |
| 120 | Triangle | Java, Python | Medium |
| 72 | Edit Distance | Java, Python | Hard |
| 70 | Climbing Stairs | Java, Python | Easy |
| 53 | Maximum Subarray | Java, Python | Easy |
| 118 | Pascal's Triangle | Java, Python | Easy |
| # | Title | Solution | Difficulty |
|---|
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 146 | LRU Cache | Java, Python | Medium |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 509 | Fib | Java, Python | Easy |
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 1048 | Longest String Chain | Java, Python | Medium |
| 1018 | Binary Prefix Divisible By 5 | Python | Easy |
| 806 | Number of Lines To Write String | Java, Python | Easy |
| 404 | Sum of Left Leaves | Java, Python | Easy |
| 389 | Find the Difference | Java, Python | Easy |
| 88 | Merge Sorted Array | Java, Python | Easy |
| 66 | Plus One | Java, Python | Easy |
| 42 | Trapping Rain Water | Java, Python | Hard |
| 35 | Search Insert Position | Java, Python | Easy |
| 28 | Implement strStr() | Java, Python | Easy |
| 21 | Merge Two Sorted Lists | Java, Python | Easy |
| 14 | Longest Common Prefix | Java, Python | Easy |
| 13 | Roman to Integer | Java, Python | Easy |
| 9 | Palindrome Number | Java, Python | Easy |
| 5 | Longest Palindromic Substring | Java | Medium |
| 4 | Median of Two Sorted Arrays | Java, Python | Hard |
| 3 | Longest Substring Without Repeating Characters | Java, Python | Medium |
| 2 | Add Two Numbers | Java, Python | Medium |
| 67 | Add Binary | Java, Python | Easy |
| 58 | Length of Last Word | Java, Python | Easy |
| Title | Data | Solution |
|---|---|---|
| 决策树 | Iris鸢尾花数据集 | R |
| 决策树 | Titanic泰坦尼克数据集 | R, Jupyter Notebook |
| 支持向量机 | BreastCancer乳腺癌数据集 | R, Jupyter Notebook |
| K近邻 | Pima糖尿病数据集 | R |
| K-Means | 亚洲球队数据集 | R, Python |
| EM聚类 | 王者荣耀英雄数据集 | R, Python |
| AdaBoost | BostonHousing波士顿房价数据集 | R |
| 随机森林 | CreditCardDefault信用卡违约数据集 | R |
| 逻辑回归 | EmployeeAttrition员工流失数据集 | R |
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