Practice problems across 75+ categories
Practice problems frequently asked at Apple • 571 problems | 192 Easy | 283 Medium | 92 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 301 | Maximum Sum of Two Non-Overlapping Subarrays | Medium | ArrayDynamic ProgrammingSliding Window |
| 302 | Maximum Transaction Each Day | Medium | Database |
| 303 | Maximum Width of Binary Tree | Medium | TreeDepth-First SearchBreadth-First Search |
| 304 | Maximum Width Ramp | Medium | ArrayTwo PointersStack |
| 305 | Maximum XOR of Two Numbers in an Array | Medium | ArrayHash TableBit Manipulation |
| 306 | Maximum Xor Product | Medium | MathGreedyBit Manipulation |
| 307 | Mean of Array After Removing Some Elements | Easy | ArraySorting |
| 308 | Median of a Row Wise Sorted Matrix | Unknown | ArrayBinary SearchMatrix |
| 309 | Median of Two Sorted Arrays | Hard | ArrayBinary SearchDivide and Conquer |
| 310 | Meeting Rooms | Easy | ArraySorting |
| 311 | Meeting Rooms II | Medium | ArrayTwo PointersGreedy |
| 312 | Merge Intervals | Medium | ArraySorting |
| 313 | Merge Two Sorted Lists | Easy | Linked ListRecursion |
| 314 | Min Cost to Connect All Points | Medium | ArrayUnion FindGraph |
| 315 | Min Max Game | Easy | ArraySimulation |
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