Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1021 | Find Original Array From Doubled Array | Medium | ArrayHash TableGreedy |
| 1022 | Find Overlapping Shifts | Unknown | Database |
| 1023 | Find Palindrome With Fixed Length | Medium | ArrayMath |
| 1024 | Find Pattern in Infinite Stream I | Medium | ArraySliding WindowRolling Hash |
| 1025 | Find Pattern in Infinite Stream II | Hard | ArraySliding WindowRolling Hash |
| 1026 | Find Peak Calling Hours for Each City | Medium | Database |
| 1027 | Find Peak Element | Medium | ArrayBinary Search |
| 1028 | Find Permutation | Medium | ArrayStringStack |
| 1029 | Find Pivot Index | Easy | ArrayPrefix Sum |
| 1030 | Find Players With Zero or One Losses | Medium | ArrayHash TableSorting |
| 1031 | Find Polygon With the Largest Perimeter | Medium | ArrayGreedySorting |
| 1032 | Find Positive Integer Solution for a Given Equation | Medium | MathTwo PointersBinary Search |
| 1033 | Find Product Recommendation Pairs | Medium | Database |
| 1034 | Find Products of Elements of Big Array | Hard | ArrayBinary SearchBit Manipulation |
| 1035 | Find Products with Three Consecutive Digits | Easy | Database |
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