Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1396 | Hand of Straights | Medium | ArrayHash TableGreedy |
| 1397 | Handling Sum Queries After Update | Hard | ArraySegment Tree |
| 1398 | Handshakes That Don't Cross | Hard | MathDynamic Programming |
| 1399 | Happy Number | Easy | Hash TableMathTwo Pointers |
| 1400 | Happy Students | Medium | ArraySortingEnumeration |
| 1401 | Harshad Number | Easy | Math |
| 1402 | Hash Divided String | Medium | StringSimulation |
| 1403 | Heaters | Medium | ArrayTwo PointersBinary Search |
| 1404 | Height Checker | Easy | ArraySortingCounting Sort |
| 1405 | Height of Binary Tree After Subtree Removal Queries | Hard | ArrayTreeDepth-First Search |
| 1406 | Height of Special Binary Tree | Medium | TreeDepth-First SearchBreadth-First Search |
| 1407 | Hexspeak | Easy | MathString |
| 1408 | High-Access Employees | Medium | ArrayHash TableString |
| 1409 | High Five | Easy | ArrayHash TableSorting |
| 1410 | Highest Grade For Each Student | Medium | Database |
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