Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2881 | Sentence Similarity | Easy | ArrayHash TableString |
| 2882 | Sentence Similarity II | Medium | ArrayHash TableString |
| 2883 | Sentence Similarity III | Medium | ArrayTwo PointersString |
| 2884 | Separate Black and White Balls | Medium | Two PointersStringGreedy |
| 2885 | Separate Squares I | Medium | ArrayBinary Search |
| 2886 | Separate the Digits in an Array | Easy | ArraySimulation |
| 2887 | Sequence Reconstruction | Medium | ArrayGraphTopological Sort |
| 2888 | Sequential Digits | Medium | Enumeration |
| 2889 | Sequential Grid Path Cover | Medium | ArrayRecursionMatrix |
| 2890 | Sequentially Ordinal Rank Tracker | Hard | DesignHeap (Priority Queue)Data Stream |
| 2891 | Serialize and Deserialize Binary Tree | Hard | StringTreeDepth-First Search |
| 2892 | Serialize and Deserialize BST | Medium | StringTreeDepth-First Search |
| 2893 | Serialize and Deserialize N-ary Tree | Hard | StringTreeDepth-First Search |
| 2894 | Server Utilization Time | Medium | Database |
| 2895 | Set Intersection Size At Least Two | Hard | ArrayGreedySorting |
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