Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 316 | Count Vowel Strings in Ranges | Medium | ArrayStringPrefix Sum |
| 317 | Count Ways to Group Overlapping Ranges | Medium | ArraySorting |
| 318 | Count Ways to Make Array With Product | Hard | ArrayMathDynamic Programming |
| 319 | Count Words Obtained After Adding a Letter | Medium | ArrayHash TableString |
| 320 | Count Zero Request Servers | Medium | ArrayHash TableSliding Window |
| 321 | Counting Elements | Easy | ArrayHash Table |
| 322 | Counting Words With a Given Prefix | Easy | ArrayStringString Matching |
| 323 | Course Schedule III | Hard | ArrayGreedySorting |
| 324 | Crawler Log Folder | Easy | ArrayStringStack |
| 325 | Create Binary Tree From Descriptions | Medium | ArrayHash TableTree |
| 326 | Create Components With Same Value | Hard | ArrayMathTree |
| 327 | Create Maximum Number | Hard | ArrayTwo PointersStack |
| 328 | Create Sorted Array through Instructions | Hard | ArrayBinary SearchDivide and Conquer |
| 329 | Create Target Array in the Given Order | Easy | ArraySimulation |
| 330 | Cut Off Trees for Golf Event | Hard | ArrayBreadth-First SearchHeap (Priority Queue) |
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