it records my leetcode learning process, continue to update.
This form includes:
- 1.the question's numbers marking by "#".
- 2.the question's title with its address in LeetCode marking by "Title".
- 3.the question's Java algorithm solutions with its address in my github marking by "Solution".
- 4.the difficulty about this question.
And in my solutions code , it includes:
- 1.the title about this question with English and Chinese version.
- 2.the right questions more than one.
- 3.the wrong question that I did the first time.
- 4.why I did the wrong answer,how I think in that time.
others:"＊" represents something I didn't finish.
Hope it helps you in algorithm learning. Have fun!
| # | Title | Solution | Difficulty |
|---|---|---|---|
| 1 | Two Sum | Java | easy |
| 2 | Add Two Numbers | Java | Medium |
| 3 | Longest Substring Without Repeating Characters | Java | Medium |
| 5 | ＊Longest Palindromic Substring | Java | Medium |
| 6 | ＊ZigZag Conversion | Java | Medium |
| 7 | Reverse Integer | Java | easy |
| 9 | Palindrome Number | Java | easy |
| 13 | Roman to Integer | Java | easy |
| 14 | Longest Common Prefix | Java | easy |
| 20 | Valid Parentheses | Java | easy |
| 21 | Merge Two Sorted Lists | Java | easy |
| 26 | Remove Duplicates from Sorted Array | Java | easy |
| 27 | Remove Element | Java | easy |
| 28 | Implement strStr() | Java | easy |
| 35 | Search Insert Position | Java | easy |
| 38 | ＊Count and Say | Java | easy |
| 58 | Length of Last Word | Java | easy |
| 66 | ＊Plus One | Java | easy |
| 67 | Add Binary | Java | easy |
| 69 | Sqrt(x) | Java | easy |
| 70 | Climbing Stairs | Java | easy |
| 83 | Remove Duplicates from Sorted List just like #26 | Java | easy |
| 88 | Merge Sorted Array | Java | easy |
| 100 | Same Tree | Java | easy |
| 101 | Symmetric Tree | Java | easy |
| 104 | Maximum Depth of Binary Tree | Java | easy |
| 107 | Binary Tree Level Order Traversal II | Java | easy |