Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 826 | Find K-th Smallest Pair Distance | Hard | ArrayTwo PointersBinary Search |
| 827 | Find Kth Bit in Nth Binary String | Medium | StringRecursionSimulation |
| 828 | Find Kth Largest XOR Coordinate Value | Medium | ArrayDivide and ConquerBit Manipulation |
| 829 | Find Largest Value in Each Tree Row | Medium | TreeDepth-First SearchBreadth-First Search |
| 830 | Find Latest Salaries | Unknown | Database |
| 831 | Find Longest Awesome Substring | Hard | Hash TableStringBit Manipulation |
| 832 | Find Longest Calls | Medium | Database |
| 833 | Find Longest Self-Contained Substring | Hard | Hash TableStringBinary Search |
| 834 | Find Longest Special Substring That Occurs Thrice I | Medium | Hash TableStringBinary Search |
| 835 | Find Longest Special Substring That Occurs Thrice II | Medium | Hash TableStringBinary Search |
| 836 | Find Lucky Integer in an Array | Easy | ArrayHash TableCounting |
| 837 | Find Maximal Uncovered Ranges | Medium | ArraySorting |
| 838 | Find Maximum Area of a Triangle | Medium | ArrayHash TableMath |
| 839 | Find Maximum Non-decreasing Array Length | Hard | ArrayBinary SearchDynamic Programming |
| 840 | Find Maximum Number of Non Intersecting Substrings | Medium | Hash TableStringDynamic Programming |
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