Practice problems across 75+ categories
Practice problems frequently asked at Microsoft • 3344 problems | 831 Easy | 1747 Medium | 746 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3031 | Strings Differ by One Character | Medium | Hash TableStringRolling Hash |
| 3032 | Strobogrammatic Number | Medium | Hash TableTwo PointersString |
| 3033 | Strobogrammatic Number II | Medium | ArrayStringRecursion |
| 3034 | Strobogrammatic Number III | Hard | ArrayStringRecursion |
| 3035 | Strong Password Checker | Hard | StringGreedyHeap (Priority Queue) |
| 3036 | Strong Password Checker II | Easy | String |
| 3037 | Student Attendance Record I | Easy | String |
| 3038 | Student Attendance Record II | Hard | Dynamic Programming |
| 3039 | Students and Examinations | Easy | Database |
| 3040 | Students Report By Geography | Hard | Database |
| 3041 | Students With Invalid Departments | Easy | Database |
| 3042 | Subarray Product Less Than K | Medium | ArrayBinary SearchSliding Window |
| 3043 | Subarray Sum Equals K | Medium | ArrayHash TablePrefix Sum |
| 3044 | Subarray Sums Divisible by K | Medium | ArrayHash TablePrefix Sum |
| 3045 | Subarray With Elements Greater Than Varying Threshold | Hard | ArrayStackUnion Find |
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