Practice problems across 75+ categories
Practice problems frequently asked at Microsoft • 3344 problems | 831 Easy | 1747 Medium | 746 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3121 | Surrounded Regions | Medium | ArrayDepth-First SearchBreadth-First Search |
| 3122 | Swap Adjacent in LR String | Medium | Two PointersString |
| 3123 | Swap For Longest Repeated Character Substring | Medium | Hash TableStringSliding Window |
| 3124 | Swap Nodes in Pairs | Medium | Linked ListRecursion |
| 3125 | Swap Sex of Employees | Unknown | Database |
| 3126 | Swapping Nodes in a Linked List | Medium | Linked ListTwo Pointers |
| 3127 | Swim in Rising Water | Hard | ArrayBinary SearchDepth-First Search |
| 3128 | Symmetric Coordinates | Medium | Database |
| 3129 | Symmetric Tree | Easy | TreeDepth-First SearchBreadth-First Search |
| 3130 | Tag Validator | Hard | StringStack |
| 3131 | Take Gifts From the Richest Pile | Easy | ArrayHeap (Priority Queue)Simulation |
| 3132 | Take K of Each Character From Left and Right | Medium | Hash TableStringSliding Window |
| 3133 | Taking Maximum Energy From the Mystic Dungeon | Medium | ArrayPrefix Sum |
| 3134 | Tallest Billboard | Hard | ArrayDynamic Programming |
| 3135 | Target Sum | Medium | ArrayDynamic ProgrammingBacktracking |
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