Practice problems across 75+ categories
Practice problems frequently asked at Microsoft • 3344 problems | 831 Easy | 1747 Medium | 746 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 61 | Alternating Digit Sum | Easy | Math |
| 62 | Alternating Groups I | Easy | ArraySliding Window |
| 63 | Alternating Groups II | Medium | ArraySliding Window |
| 64 | Alternating Groups III | Hard | ArrayBinary Indexed TreeOrdered Set |
| 65 | Ambiguous Coordinates | Medium | StringBacktrackingEnumeration |
| 66 | Amount of New Area Painted Each Day | Hard | ArraySegment TreeOrdered Set |
| 67 | Amount of Time for Binary Tree to Be Infected | Medium | Hash TableTreeDepth-First Search |
| 68 | Analyze Organization Hierarchy | Hard | Database |
| 69 | Analyze User Website Visit Pattern | Medium | ArrayHash TableString |
| 70 | Angle Between Hands of a Clock | Medium | Math |
| 71 | Ant on the Boundary | Easy | ArraySimulationPrefix Sum |
| 72 | Append Characters to String to Make Subsequence | Medium | Two PointersStringGreedy |
| 73 | Apple Redistribution into Boxes | Easy | ArrayGreedySorting |
| 74 | Apples & Oranges | Medium | Database |
| 75 | Apply Bitwise Operations to Make Strings Equal | Medium | StringBit Manipulation |
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