MathWorks
27 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 2462. Total Cost to Hire K Workers | Medium | 100% | TopicsArrayTwo PointersHeap (Priority Queue)Simulation |
| 1648. Sell Diminishing-Valued Colored Balls | Medium | 100% | TopicsArrayMathBinary SearchGreedySortingHeap (Priority Queue) |
| 2861. Maximum Number of Alloys | Medium | 97.9% | TopicsArrayBinary Search |
| 3035. Maximum Palindromes After Operations | Medium | 95.5% | TopicsArrayHash TableStringGreedySortingCounting |
| 968. Binary Tree Cameras | Hard | 95.5% | TopicsDynamic ProgrammingTreeDepth-First SearchBinary TreeDP on Trees |
| Shopping Offers | Medium | 95.5% | TopicsArrayDynamic ProgrammingBacktrackingBit ManipulationMemoizationBitmaskKnapsack ProblemComplete Knapsack |
| Reshape the Matrix | Easy | 92.9% | TopicsArrayMatrixSimulation |
| 2514. Count Anagrams | Hard | 90% | TopicsHash TableMathStringCombinatoricsCountingFermat's Little Theorem |
| 2038. Remove Colored Pieces if Both Neighbors are the Same Color | Medium | 90% | TopicsMathStringGreedyGame Theory |
| 1163. Last Substring in Lexicographical Order | Hard | 90% | TopicsTwo PointersStringLyndon Factorization |
| 1130. Minimum Cost Tree From Leaf Values | Medium | 90% | TopicsArrayDynamic ProgrammingStackGreedyMonotonic StackCartesian Tree |
| 3049. Earliest Second to Mark Indices II | Hard | 90% | TopicsArrayBinary SearchGreedyHeap (Priority Queue) |
| 3048. Earliest Second to Mark Indices I | Medium | 90% | TopicsArrayBinary Search |
| Keyboard Row | Easy | 90% | TopicsArrayHash TableString |
| 2444. Count Subarrays With Fixed Bounds | Hard | 73% | TopicsArrayQueueSliding WindowMonotonic Queue |
| 2582. Pass the Pillow | Easy | 73% | TopicsMathSimulation |
| 2918. Minimum Equal Sum of Two Arrays After Replacing Zeros | Medium | 73% | TopicsArrayGreedy |
| 2858. Minimum Edge Reversals So Every Node Is Reachable | Hard | 65.9% | TopicsDynamic ProgrammingDepth-First SearchBreadth-First SearchGraph Theory |
| 621. Task Scheduler | Medium | 65.9% | TopicsArrayHash TableGreedySortingHeap (Priority Queue)Counting |
| 25. Reverse Nodes in k-Group | Hard | 56% | TopicsLinked ListRecursion |
| Number of Divisible Triplet Sums | Medium | 56% | TopicsArrayHash Table |
| 2559. Count Vowel Strings in Ranges | Medium | 56% | TopicsArrayStringPrefix Sum |
| 2697. Lexicographically Smallest Palindrome | Easy | 56% | TopicsTwo PointersStringGreedy |
| 1220. Count Vowels Permutation | Hard | 56% | TopicsDynamic Programming |
| 20. Valid Parentheses | Easy | 56% | TopicsStringStackBracket Sequences |
