Practice problems across 75+ categories
Practice problems frequently asked at Hash Table • 719 problems | 168 Easy | 418 Medium | 127 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 181 | Determine if Two Strings Are Close | Medium | Hash TableStringSorting |
| 182 | Difference of Number of Distinct Values on Diagonals | Medium | ArrayHash TableMatrix |
| 183 | Dinner Plate Stacks | Hard | Hash TableStackDesign |
| 184 | Display Table of Food Orders in a Restaurant | Medium | ArrayHash TableString |
| 185 | Distant Barcodes | Medium | ArrayHash TableGreedy |
| 186 | Distinct Numbers in Each Subarray | Medium | ArrayHash TableSliding Window |
| 187 | Distinct Prime Factors of Product of Array | Medium | ArrayHash TableMath |
| 188 | Distribute Candies | Easy | ArrayHash Table |
| 189 | Divide an Array Into Subarrays With Minimum Cost II | Hard | ArrayHash TableSliding Window |
| 190 | Divide Array in Sets of K Consecutive Numbers | Medium | ArrayHash TableGreedy |
| 191 | Divide Array Into Equal Pairs | Easy | ArrayHash TableBit Manipulation |
| 192 | Divide Players Into Teams of Equal Skill | Medium | ArrayHash TableTwo Pointers |
| 193 | Dot Product of Two Sparse Vectors | Medium | ArrayHash TableTwo Pointers |
| 194 | Employee Importance | Medium | ArrayHash TableTree |
| 195 | Encode and Decode TinyURL | Medium | Hash TableStringDesign |
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