Practice problems across 75+ categories
Practice problems frequently asked at Hash Table • 719 problems | 168 Easy | 418 Medium | 127 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 16 | Arithmetic Subarrays | Medium | ArrayHash TableSorting |
| 17 | Array of Doubled Pairs | Medium | ArrayHash TableGreedy |
| 18 | Assign Elements to Groups with Constraints | Medium | ArrayHash Table |
| 19 | Avoid Flood in The City | Medium | ArrayHash TableBinary Search |
| 20 | Basic Calculator IV | Hard | Hash TableMathString |
| 21 | Before and After Puzzle | Medium | ArrayHash TableString |
| 22 | Best Poker Hand | Easy | ArrayHash TableCounting |
| 23 | Better Compression of String | Medium | Hash TableStringSorting |
| 24 | Binary String With Substrings Representing 1 To N | Medium | Hash TableStringBit Manipulation |
| 25 | Binary Subarrays With Sum | Medium | ArrayHash TableSliding Window |
| 26 | Binary Tree Vertical Order Traversal | Medium | Hash TableTreeDepth-First Search |
| 27 | Binary Trees With Factors | Medium | ArrayHash TableDynamic Programming |
| 28 | Bold Words in String | Medium | ArrayHash TableString |
| 29 | Brace Expansion II | Hard | Hash TableStringBacktracking |
| 30 | Brick Wall | Medium | ArrayHash Table |
Powerful online tools to boost your productivity
Coding Ground For Developers
Code, Edit, Run and ShareIgnite your coding potential on Coding Ground - an immersive online platform for hands-on learning, collaboration, and skill development.
