题目由java和python实现, 按照类型分为:array,list,string,hashtable,math,tree:
题号 | 题目内容 | 题目难度 |
---|---|---|
114 | Flatten Binary Tree to Linked List | Middle |
23 | Merge k Sorted Lists | Middle |
*142 | Linked List Cycle II | Middle |
160 | Intersection of Two Linked Lists | Easy |
234 | Palindrome Linked List | Easy |
155 | Min Stack | Easy |
148 | Sort List | Easy |
21 | Merge Two Sorted Lists | Easy |
206 | Reverse Linked List | Easy |
141 | Linked List Cycle | Easy |
19 | Remove Nth Node From End of List | Easy |
题号 | 题目内容 | 题目难度 |
---|---|---|
32 | Longest Valid Parentheses | Hard |
*22 | Generate Parentheses | Middle |
49 | Group Anagrams | Middle |
139 | Word Break | Middle |
*5 | Longest Palindromic Substring | Easy |
394 | Decode String | Middle |
3 | Longest Substring Without Repeating Characters | Easy |
917 | Reverse Only Letters | Easy |
520 | Detect Capital | Easy |
541 | Reverse String II | Easy |
66 | Plus one | Easy |
647 | Palindromic Substrings | Easy |
438 | Find All Anagrams in a String | Easy |
67 | Add Binary | Easy |
题号 | 题目内容 | 题目难度 |
---|---|---|
1 | Two Sum | Easy |
3 | Pairs Of Parentheses | Middle |
48 | Rotate Image | Middle |
461 | Hamming Distance | Easy |
771 | Jewels and Stones | Easy |
167 | Two Sum II - Input array is sorted | Easy |
题号 | 题目内容 | 题目难度 |
---|---|---|
258 | Add Digits | Easy |
1154 | Day Of Year | Easy |
题号 | 题目内容 | 题目难度 |
---|---|---|
94 | Binary Tree Inorder Traversal | Easy |
144 | Binary Tree PreOrder Traversal | Middle |
145 | Binary Tree Post Order Traversal | Middle |
236 | Lowest Common Ancestor of a Binary Tree | Middle |
*337 | House Robber III | Middle |
102 | Binary Tree Level Order Traversal | Middle |
94 | Binary Tree Inorder Traversal | Middle |
538 | Convert BST to Greater Tree | Easy |
572 | Subtree of Another Tree | Easy |
543 | Diameter of Binary Tree | Easy |
101 | Symmetric Tree | Easy |
226 | Invert Binary Tree | Easy |
104 | Maximum Depth of Binary Tree | Easy |
617 | Merge Two Binary Trees | Easy |
*606 | Construct String from Binary Tree | Easy |