Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3316 | Subtree Inversion Sum | Hard | ArrayDynamic ProgrammingTree |
| 3317 | Subtree of Another Tree | Easy | TreeDepth-First SearchString Matching |
| 3318 | Subtree Removal Game with Fibonacci Tree | Hard | MathDynamic ProgrammingTree |
| 3319 | Successful Pairs of Spells and Potions | Medium | ArrayTwo PointersBinary Search |
| 3320 | Sudoku Solver | Hard | ArrayHash TableBacktracking |
| 3321 | Sum Game | Medium | MathStringGreedy |
| 3322 | Sum in a Matrix | Medium | ArraySortingHeap (Priority Queue) |
| 3323 | Sum Multiples | Easy | Math |
| 3324 | Sum of Absolute Differences in a Sorted Array | Medium | ArrayMathPrefix Sum |
| 3325 | Sum of All Odd Length Subarrays | Easy | ArrayMathPrefix Sum |
| 3326 | Sum of All Subset XOR Totals | Easy | ArrayMathBacktracking |
| 3327 | Sum of Beauty in the Array | Medium | Array |
| 3328 | Sum of Beauty of All Substrings | Medium | Hash TableStringCounting |
| 3329 | Sum of Consecutive Subarrays | Medium | ArrayTwo PointersDynamic Programming |
| 3330 | Sum of Consecutive Subsequences | Hard | ArrayHash TableDynamic Programming |
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