Up to now, the total number of LeetCode questions has been 1582题, and it is estimated that the average annual growth will be 300题around in the future . Most people will definitely be 刷不完的, so you have to selectively brush LeetCode.
A generally accepted strategy for brushing questions is 按类别刷题, but each category also has many questions, in a limited time 到底该刷哪些题呢? Individuals sorted out and included the topics in each category according LeetCode官方to each topic given . For topics whose official statistical frequency was too low, they were not included, and finally got this high-frequency topic table.出现频率高频出现
For example, the title of the title number #275and #270in the following figure will be included, and the #275frequency of occurrence is greater than #270; for the title of the title number #1011and #1182, because the occurrence frequency is too low, it will not be included:
Pick up the keyboard and work hard! I wish you all a successful landing! It's not easy to organize, please like it!
Sort, 23 problems (Sort, 23 problems)
Date of data: 2020/03/26 (LeetCode question number at this time: 1582)
Data source: LeetCode official. Questions of different categories are arranged in descending order according to the official frequency (Frequency), and questions with frequency statistics are selected.
| Sort | Question number | topic | Passing rate | Difficulty |
|---|---|---|---|---|
| 1 | #148 | Sort List | 0.646 | medium |
| 2 | #56 | Merge Intervals | 0.407 | medium |
| 3 | #349 | Intersection of Two Arrays | 0.685 | simple |
| 4 | #179 | Largest Number | 0.358 | medium |
| 5 | #75 | Sort Colors | 0.547 | medium |
| 6 | #315 | Count of Smaller Numbers After Self | 0.372 | difficult |
| 7 | #327 | Count of Range Sum | 0.329 | difficult |
| 8 | #164 | Maximum Gap | 0.546 | difficult |
| 9 | #147 | Insertion Sort List | 0.637 | medium |
| 10 | #57 | Insert Interval | 0.371 | difficult |
| 11 | #493 | Reverse Pairs | 0.235 | difficult |
| 12 | #324 | Wiggle Sort II | 0.35 | medium |
| 13 | #242 | Valid Anagram | 0.591 | simple |
| 14 | #274 | H-Index | 0.379 | medium |
| 15 | #220 | Contains Duplicate III | 0.259 | medium |
| 16 | #350 | Intersection of Two Arrays II | 0.474 | simple |
| 17 | #280 | Wiggle Sort | 0.684 | medium |
| 18 | #527 | Word Abbreviation | 0.498 | difficult |
| 19 | #253 | Meeting Rooms II | 0.422 | medium |
| 20 | #524 | Longest Word in Dictionary through Deleting | 0.454 | medium |
| 21 | #296 | Best Meeting Point | 0.618 | difficult |
| 22 | #1152 | Analyze User Website Visit Pattern | 0.319 | medium |
| 23 | #252 | Meeting Rooms | 0.519 | simple |