Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 841 | Elements in Array After Removing and Replacing Elements | Medium | Array |
| 842 | Eliminate Maximum Number of Monsters | Medium | ArrayGreedySorting |
| 843 | Elimination Game | Medium | MathRecursion |
| 844 | Employee Bonus | Easy | Database |
| 845 | Employee Free Time | Hard | ArrayLine SweepSorting |
| 846 | Employee Importance | Medium | ArrayHash TableTree |
| 847 | Employee Task Duration and Concurrent Tasks | Hard | Database |
| 848 | Employees Earning More Than Their Managers | Easy | Database |
| 849 | Employees Whose Manager Left the Company | Easy | Database |
| 850 | Employees With Deductions | Medium | Database |
| 851 | Employees With Missing Information | Easy | Database |
| 852 | Encode and Decode Strings | Medium | ArrayStringDesign |
| 853 | Encode and Decode TinyURL | Medium | Hash TableStringDesign |
| 854 | Encode N-ary Tree to Binary Tree | Hard | TreeDepth-First SearchBreadth-First Search |
| 855 | Encode Number | Medium | MathStringBit Manipulation |
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