Practice problems across 75+ categories
Practice problems frequently asked at Microsoft • 3344 problems | 831 Easy | 1747 Medium | 746 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 511 | Count Pairs in Two Arrays | Medium | ArrayTwo PointersBinary Search |
| 512 | Count Pairs of Connectable Servers in a Weighted Tree Network | Medium | ArrayTreeDepth-First Search |
| 513 | Count Pairs of Equal Substrings With Minimum Difference | Medium | Hash TableStringGreedy |
| 514 | Count Pairs Of Nodes | Hard | ArrayHash TableTwo Pointers |
| 515 | Count Pairs of Points With Distance k | Medium | ArrayHash TableBit Manipulation |
| 516 | Count Pairs Of Similar Strings | Easy | ArrayHash TableString |
| 517 | Count Pairs That Form a Complete Day I | Easy | ArrayHash TableCounting |
| 518 | Count Pairs That Form a Complete Day II | Medium | ArrayHash TableCounting |
| 519 | Count Pairs Whose Sum is Less than Target | Easy | ArrayTwo PointersBinary Search |
| 520 | Count Pairs With XOR in a Range | Hard | ArrayBit ManipulationTrie |
| 521 | Count Palindromic Subsequences | Hard | StringDynamic Programming |
| 522 | Count Partitions with Even Sum Difference | Easy | ArrayMathPrefix Sum |
| 523 | Count Partitions With Max-Min Difference at Most K | Medium | ArrayDynamic ProgrammingQueue |
| 524 | Count Paths That Can Form a Palindrome in a Tree | Hard | Dynamic ProgrammingBit ManipulationTree |
| 525 | Count Paths With the Given XOR Value | Medium | ArrayDynamic ProgrammingBit Manipulation |
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