Practice problems across 75+ categories
Practice problems frequently asked at Microsoft • 3344 problems | 831 Easy | 1747 Medium | 746 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 466 | Count Houses in a Circular Street | Easy | ArrayInteractive |
| 467 | Count Houses in a Circular Street II | Hard | ArrayTwo Pointers |
| 468 | Count Increasing Quadruplets | Hard | ArrayDynamic ProgrammingBinary Indexed Tree |
| 469 | Count Integers in Intervals | Hard | DesignSegment TreeOrdered Set |
| 470 | Count Integers With Even Digit Sum | Easy | MathSimulation |
| 471 | Count Items Matching a Rule | Easy | ArrayString |
| 472 | Count K-Subsequences of a String With Maximum Beauty | Hard | Hash TableMathString |
| 473 | Count Largest Group | Easy | Hash TableMath |
| 474 | Count Lattice Points Inside a Circle | Medium | ArrayHash TableMath |
| 475 | Count Mentions Per User | Medium | ArrayMathSorting |
| 476 | Count Negative Numbers in a Sorted Matrix | Easy | ArrayBinary SearchMatrix |
| 477 | Count Nice Pairs in an Array | Medium | ArrayHash TableMath |
| 478 | Count Nodes Equal to Average of Subtree | Medium | TreeDepth-First SearchBinary Tree |
| 479 | Count Nodes Equal to Sum of Descendants | Medium | TreeDepth-First SearchBinary Tree |
| 480 | Count Nodes That Are Great Enough | Hard | Divide and ConquerTreeDepth-First Search |
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