Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3556 | Substring Matching Pattern | Easy | StringString Matching |
| 3557 | Substring with Concatenation of All Words | Hard | Hash TableStringSliding Window |
| 3558 | Substring With Largest Variance | Hard | ArrayDynamic Programming |
| 3559 | Substring XOR Queries | Medium | ArrayHash TableString |
| 3560 | Substrings of Size Three with Distinct Characters | Easy | Hash TableStringSliding Window |
| 3561 | Substrings That Begin and End With the Same Letter | Medium | Hash TableMathString |
| 3562 | Subtract the Product and Sum of Digits of an Integer | Easy | Math |
| 3563 | Subtree Inversion Sum | Hard | ArrayDynamic ProgrammingTree |
| 3564 | Subtree of Another Tree | Easy | TreeDepth-First SearchString Matching |
| 3565 | Subtree Removal Game with Fibonacci Tree | Hard | MathDynamic ProgrammingTree |
| 3566 | Successful Pairs of Spells and Potions | Medium | ArrayTwo PointersBinary Search |
| 3567 | Sudoku Solver | Hard | ArrayHash TableBacktracking |
| 3568 | Sudoku Validator | Medium | Arrays2D ArrayValidation |
| 3569 | Suffix Array Builder | Hard | Advanced DSStringArray |
| 3570 | Sum Game | Medium | MathStringGreedy |
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