Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 361 | Combination Sum | Medium | ArrayBacktracking |
| 362 | Combination Sum II | Medium | ArrayBacktracking |
| 363 | Combination Sum III | Medium | ArrayBacktracking |
| 364 | Combination Sum IV | Medium | ArrayDynamic Programming |
| 365 | Combinations | Medium | Backtracking |
| 366 | Combine Two Tables | Easy | Database |
| 367 | Compact Object | Medium | JavaScript |
| 368 | Compare Strings by Frequency of the Smallest Character | Medium | ArrayHash TableString |
| 369 | Compare Version Numbers | Medium | Two PointersString |
| 370 | Complement of Base 10 Integer | Easy | Bit Manipulation |
| 371 | Complete Binary Tree Inserter | Medium | TreeBreadth-First SearchDesign |
| 372 | Complex Number Multiplication | Medium | MathStringSimulation |
| 373 | Compute the Rank as a Percentage | Medium | Database |
| 374 | Concatenate the Name and the Profession | Easy | Database |
| 375 | Concatenated Divisibility | Hard | ArrayDynamic ProgrammingBit Manipulation |
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