Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1126 | Highest Salaries Difference | Easy | Database |
| 1127 | Hopper Company Queries I | Hard | Database |
| 1128 | House Robber | Medium | ArrayDynamic Programming |
| 1129 | House Robber II | Medium | ArrayDynamic Programming |
| 1130 | House Robber III | Medium | Dynamic ProgrammingTreeDepth-First Search |
| 1131 | House Robber IV | Medium | ArrayBinary SearchDynamic Programming |
| 1132 | HTML Entity Parser | Medium | Hash TableString |
| 1133 | Identify the Largest Outlier in an Array | Medium | ArrayHash TableCounting |
| 1134 | Immediate Food Delivery II | Medium | Database |
| 1135 | Immutability Helper | Hard | JavaScript |
| 1136 | Implement Magic Dictionary | Medium | Hash TableStringDepth-First Search |
| 1137 | Implement Queue using Stacks | Easy | StackDesignQueue |
| 1138 | Implement Stack using Queues | Easy | StackDesignQueue |
| 1139 | Implement Trie II (Prefix Tree) | Unknown | Hash TableStringDesign |
| 1140 | Implement Trie (Prefix Tree) | Medium | Hash TableStringDesign |
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