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1396 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 3562. Maximum Profit from Trading Stocks with Discounts | Hard | 5% | TopicsArrayDynamic ProgrammingTreeDepth-First Search |
| Binary Tree Tilt | Easy | 5% | TopicsTreeDepth-First SearchBinary TreeDP on Trees |
| 961. N-Repeated Element in Size 2N Array | Easy | 5% | TopicsArrayHash TablePigeonhole Principle |
| 1411. Number of Ways to Paint N × 3 Grid | Hard | 5% | TopicsDynamic ProgrammingGraph Coloring |
| 888. Fair Candy Swap | Easy | 5% | TopicsArrayHash TableBinary SearchSorting |
| 1136. Parallel Courses | Medium | 5% | TopicsGraph TheoryTopological SortDirected Acyclic Graph |
| 759. Employee Free Time | Hard | 5% | TopicsArraySweep LineSortingHeap (Priority Queue) |
| Minimum ASCII Delete Sum for Two Strings | Medium | 5% | TopicsStringDynamic ProgrammingLongest Common Subsequence |
| Super Ugly Number | Medium | 5% | TopicsArrayMathDynamic Programming |
| 2943. Maximize Area of Square Hole in Grid | Medium | 5% | TopicsArraySorting |
| 3315. Construct the Minimum Bitwise Array II | Medium | 5% | TopicsArrayBit Manipulation |
| 3296. Minimum Number of Seconds to Make Mountain Height Zero | Medium | 5% | TopicsArrayMathBinary SearchGreedyHeap (Priority Queue) |
| 3010. Divide an Array Into Subarrays With Minimum Cost I | Easy | 5% | TopicsArraySortingEnumeration |
| 3637. Trionic Array I | Easy | 5% | TopicsArray |
| 845. Longest Mountain in Array | Medium | 5% | TopicsArrayTwo PointersDynamic ProgrammingEnumeration |
| 2946. Matrix Similarity After Cyclic Shifts | Easy | 5% | TopicsArrayMathMatrixSimulation |
| 799. Champagne Tower | Medium | 5% | TopicsDynamic Programming |
| 3770. Largest Prime from Consecutive Prime Sum | Medium | 5% | TopicsArrayMathNumber Theory |
| Reshape Data: Pivot | Easy | 5% | Topics— |
| 2521. Distinct Prime Factors of Product of Array | Medium | 5% | TopicsArrayHash TableMathNumber TheoryPrime FactorizationEuclidean AlgorithmPrimality TestGreatest Common DivisorSieve TheoryPrime Number Sieve |
| 2601. Prime Subtraction Operation | Medium | 5% | TopicsArrayMathBinary SearchGreedyNumber Theory |
| 1572. Matrix Diagonal Sum | Easy | 5% | TopicsArrayMatrix |
| 3816. Lexicographically Smallest String After Deleting Duplicate Characters | Hard | 5% | TopicsHash TableStringStackGreedyMonotonic Stack |
| 1800. Maximum Ascending Subarray Sum | Easy | 5% | TopicsArray |
| 1664. Ways to Make a Fair Array | Medium | 5% | TopicsArrayPrefix Sum |
