Practice problems across 75+ categories
Practice problems frequently asked at Microsoft • 3344 problems | 831 Easy | 1747 Medium | 746 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2416 | Number of Trusted Contacts of a Customer | Medium | Database |
| 2417 | Number of Unequal Triplets in Array | Easy | ArrayHash TableSorting |
| 2418 | Number of Unique Categories | Medium | Union FindInteractiveCounting |
| 2419 | Number of Unique Flavors After Sharing K Candies | Medium | ArrayHash TableSliding Window |
| 2420 | Number of Unique Good Subsequences | Hard | StringDynamic Programming |
| 2421 | Number of Unique Subjects Taught by Each Teacher | Easy | Database |
| 2422 | Number of Unique XOR Triplets I | Medium | ArrayMathBit Manipulation |
| 2423 | Number of Unique XOR Triplets II | Medium | ArrayMathBit Manipulation |
| 2424 | Number of Valid Clock Times | Easy | StringEnumeration |
| 2425 | Number of Valid Subarrays | Hard | ArrayStackMonotonic Stack |
| 2426 | Number of Valid Words for Each Puzzle | Hard | ArrayHash TableString |
| 2427 | Number of Valid Words in a Sentence | Easy | String |
| 2428 | Number of Ways of Cutting a Pizza | Hard | ArrayDynamic ProgrammingMemoization |
| 2429 | Number of Ways to Arrive at Destination | Medium | Dynamic ProgrammingGraphTopological Sort |
| 2430 | Number of Ways to Assign Edge Weights I | Medium | MathTreeDepth-First Search |
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