Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 331 | Count Words Obtained After Adding a Letter | Medium | ArrayHash TableString |
| 332 | Count Zero Request Servers | Medium | ArrayHash TableSliding Window |
| 333 | Counting Elements | Easy | ArrayHash Table |
| 334 | Counting Words With a Given Prefix | Easy | ArrayStringString Matching |
| 335 | Course Schedule III | Hard | ArrayGreedySorting |
| 336 | Crawler Log Folder | Easy | ArrayStringStack |
| 337 | Create Binary Tree From Descriptions | Medium | ArrayHash TableTree |
| 338 | Create Components With Same Value | Hard | ArrayMathTree |
| 339 | Create Maximum Number | Hard | ArrayTwo PointersStack |
| 340 | Create Sorted Array through Instructions | Hard | ArrayBinary SearchDivide and Conquer |
| 341 | Create Target Array in the Given Order | Easy | ArraySimulation |
| 342 | Custom Hash Map | Medium | HashingHashMapArray |
| 343 | Custom Sort Comparator | Medium | Sorting & SearchingArrayComparator |
| 344 | Cut Off Trees for Golf Event | Hard | ArrayBreadth-First SearchHeap (Priority Queue) |
| 345 | Cutting Ribbons | Medium | ArrayBinary Search |
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