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1396 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| Non-decreasing Array | Medium | 5% | TopicsArray |
| 3000. Maximum Area of Longest Diagonal Rectangle | Easy | 5% | TopicsArray |
| Reformat Department Table | Easy | 5% | TopicsDatabase |
| 3446. Sort Matrix by Diagonals | Medium | 5% | TopicsArraySortingMatrix |
| 937. Reorder Data in Log Files | Medium | 5% | TopicsArrayStringSorting |
| 3025. Find the Number of Ways to Place People I | Medium | 5% | TopicsArrayMathGeometrySortingEnumeration |
| 3027. Find the Number of Ways to Place People II | Hard | 5% | TopicsArrayMathGeometrySortingEnumeration |
| 3516. Find Closest Person | Easy | 5% | TopicsMath |
| 923. 3Sum With Multiplicity | Medium | 5% | TopicsArrayHash TableTwo PointersSortingCounting |
| Cherry Pickup | Hard | 5% | TopicsArrayDynamic ProgrammingMatrix |
| 3227. Vowels Game in a String | Medium | 5% | TopicsMathStringBrainteaserGame Theory |
| 3552. Grid Teleportation Traversal | Medium | 5% | TopicsArrayHash TableBreadth-First SearchMatrix |
| 2325. Decode the Message | Easy | 5% | TopicsHash TableString |
| 3100. Water Bottles II | Medium | 5% | TopicsMathSimulation |
| 851. Loud and Rich | Medium | 5% | TopicsArrayDepth-First SearchGraph TheoryTopological SortDirected Acyclic Graph |
| 3417. Zigzag Grid Traversal With Skip | Easy | 5% | TopicsArrayMatrixSimulation |
| 3697. Compute Decimal Representation | Easy | 5% | TopicsArrayMath |
| 2426. Number of Pairs Satisfying Inequality | Hard | 5% | TopicsArrayBinary SearchDivide and ConquerBinary Indexed TreeSegment TreeMerge SortOrdered Set |
| 3539. Find Sum of Array Product of Magical Sequences | Hard | 5% | TopicsArrayMathDynamic ProgrammingBit ManipulationCombinatoricsBitmask |
| 1984. Minimum Difference Between Highest and Lowest of K Scores | Easy | 5% | TopicsArraySliding WindowSorting |
| 1921. Eliminate Maximum Number of Monsters | Medium | 5% | TopicsArrayGreedySorting |
| 1656. Design an Ordered Stream | Easy | 5% | TopicsArrayHash TableDesignData Stream |
| 3346. Maximum Frequency of an Element After Performing Operations I | Medium | 5% | TopicsArrayBinary SearchSliding WindowSortingPrefix Sum |
| 2048. Next Greater Numerically Balanced Number | Medium | 5% | TopicsHash TableMathBacktrackingCountingEnumeration |
| 2781. Length of the Longest Valid Substring | Hard | 5% | TopicsArrayHash TableStringSliding Window |
