Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1306 | Height of Binary Tree After Subtree Removal Queries | Hard | ArrayTreeDepth-First Search |
| 1307 | Height of Special Binary Tree | Medium | TreeDepth-First SearchBreadth-First Search |
| 1308 | Hexspeak | Easy | MathString |
| 1309 | High-Access Employees | Medium | ArrayHash TableString |
| 1310 | Highest Grade For Each Student | Medium | Database |
| 1311 | Highest Salaries Difference | Easy | Database |
| 1312 | Hopper Company Queries I | Hard | Database |
| 1313 | Hopper Company Queries II | Hard | Database |
| 1314 | Hopper Company Queries III | Hard | Database |
| 1315 | House Robber | Medium | ArrayDynamic Programming |
| 1316 | House Robber II | Medium | ArrayDynamic Programming |
| 1317 | House Robber III | Medium | Dynamic ProgrammingTreeDepth-First Search |
| 1318 | House Robber IV | Medium | ArrayBinary SearchDynamic Programming |
| 1319 | How Many Apples Can You Put into the Basket | Easy | ArrayGreedySorting |
| 1320 | How Many Numbers Are Smaller Than the Current Number | Easy | ArrayHash TableSorting |
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