Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2626 | Number of Unique XOR Triplets I | Medium | ArrayMathBit Manipulation |
| 2627 | Number of Unique XOR Triplets II | Medium | ArrayMathBit Manipulation |
| 2628 | Number of Valid Clock Times | Easy | StringEnumeration |
| 2629 | Number of Valid Move Combinations On Chessboard | Hard | ArrayStringBacktracking |
| 2630 | Number of Valid Subarrays | Hard | ArrayStackMonotonic Stack |
| 2631 | Number of Valid Words for Each Puzzle | Hard | ArrayHash TableString |
| 2632 | Number of Valid Words in a Sentence | Easy | String |
| 2633 | Number of Visible People in a Queue | Hard | ArrayStackMonotonic Stack |
| 2634 | Number of Ways of Cutting a Pizza | Hard | ArrayDynamic ProgrammingMemoization |
| 2635 | Number of Ways to Arrive at Destination | Medium | Dynamic ProgrammingGraphTopological Sort |
| 2636 | Number of Ways to Assign Edge Weights I | Medium | MathTreeDepth-First Search |
| 2637 | Number of Ways to Assign Edge Weights II | Hard | ArrayMathDynamic Programming |
| 2638 | Number of Ways to Build House of Cards | Medium | MathDynamic Programming |
| 2639 | Number of Ways to Build Sturdy Brick Wall | Medium | ArrayDynamic ProgrammingBit Manipulation |
| 2640 | Number of Ways to Buy Pens and Pencils | Medium | MathEnumeration |
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