Practice problems across 75+ categories
Practice problems frequently asked at Apple • 571 problems | 192 Easy | 283 Medium | 92 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 181 | Find Peak Element | Medium | ArrayBinary Search |
| 182 | Find Players With Zero or One Losses | Medium | ArrayHash TableSorting |
| 183 | Find Smallest Letter Greater Than Target | Easy | ArrayBinary Search |
| 184 | Find Subsequence of Length K With the Largest Sum | Easy | ArrayHash TableSorting |
| 185 | Find the Closest Marked Node | Medium | ArrayGraphHeap (Priority Queue) |
| 186 | Find the Duplicate Number | Medium | ArrayTwo PointersBinary Search |
| 187 | Find the Index of Permutation | Medium | ArrayBinary SearchDivide and Conquer |
| 188 | Find the Peaks | Easy | ArrayEnumeration |
| 189 | Find the Safest Path in a Grid | Medium | ArrayBinary SearchBreadth-First Search |
| 190 | Find the Smallest Divisor Given a Threshold | Medium | ArrayBinary Search |
| 191 | Find Words That Can Be Formed by Characters | Easy | ArrayHash TableString |
| 192 | Finding 3-Digit Even Numbers | Easy | ArrayHash TableRecursion |
| 193 | First Bad Version | Easy | Binary SearchInteractive |
| 194 | First Missing Positive | Hard | ArrayHash Table |
| 195 | Fixed Point | Easy | ArrayBinary Search |
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