Practice problems across 75+ categories
Practice problems frequently asked at Microsoft • 3344 problems | 831 Easy | 1747 Medium | 746 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 16 | Account Balance | Medium | Database |
| 17 | Accounts Merge | Medium | StackSegment Tree |
| 18 | Active Businesses | Medium | Database |
| 19 | Active Users | Medium | Database |
| 20 | Activity Participants | Medium | Database |
| 21 | Actors and Directors Who Cooperated At Least Three Times | Easy | Database |
| 22 | Add Binary | Easy | MathStringBit Manipulation |
| 23 | Add Bold Tag in String | Medium | ArrayHash TableString |
| 24 | Add Digits | Easy | MathSimulationNumber Theory |
| 25 | Add Edges to Make Degrees of All Nodes Even | Hard | Hash TableGraph |
| 26 | Add Minimum Number of Rungs | Medium | ArrayGreedy |
| 27 | Add One Row to Tree | Medium | TreeDepth-First SearchBreadth-First Search |
| 28 | Add Strings | Easy | MathStringSimulation |
| 29 | Add to Array-Form of Integer | Easy | ArrayMath |
| 30 | Add Two Integers | Easy | Math |
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