2324 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| Integer Replacement | Medium | 22.3% | TopicsDynamic ProgrammingGreedyBit ManipulationMemoization |
| The Maze | Medium | 22.3% | TopicsArrayDepth-First SearchBreadth-First SearchMatrix |
| Longest Word in Dictionary through Deleting | Medium | 22.3% | TopicsArrayTwo PointersStringSorting |
| Student Attendance Record I | Easy | 22.3% | TopicsString |
| Non-decreasing Array | Medium | 22.3% | TopicsArray |
| Implement Magic Dictionary | Medium | 22.3% | TopicsHash TableStringDepth-First SearchDesignTrie |
| 753. Cracking the Safe | Hard | 22.3% | TopicsStringDepth-First SearchGraph TheoryEulerian CircuitEulerian PathEulerian Graph |
| Flatten a Multilevel Doubly Linked List | Medium | 22.3% | TopicsLinked ListDepth-First SearchDoubly-Linked List |
| 768. Max Chunks To Make Sorted II | Hard | 22.3% | TopicsArrayStackGreedySortingMonotonic Stack |
| 774. Minimize Max Distance to Gas Station | Hard | 22.3% | TopicsArrayBinary Search |
| 789. Escape The Ghosts | Medium | 22.3% | TopicsArrayMath |
| 839. Similar String Groups | Hard | 22.3% | TopicsArrayHash TableStringDepth-First SearchBreadth-First SearchUnion-Find |
| 857. Minimum Cost to Hire K Workers | Hard | 22.3% | TopicsArrayGreedySortingHeap (Priority Queue) |
| 911. Online Election | Medium | 22.3% | TopicsArrayHash TableBinary SearchDesign |
| 913. Cat and Mouse | Hard | 22.3% | TopicsMathDynamic ProgrammingGraph TheoryTopological SortMemoizationMinimaxGame TheoryZero-Sum Game |
| 1032. Stream of Characters | Hard | 22.3% | TopicsArrayStringDesignTrieData StreamAho–Corasick Algorithm |
| 1096. Brace Expansion II | Hard | 22.3% | TopicsHash TableStringBacktrackingStackBreadth-First SearchSorting |
| 1105. Filling Bookcase Shelves | Medium | 22.3% | TopicsArrayDynamic Programming |
| 1272. Remove Interval | Medium | 22.3% | TopicsArray |
| 1240. Tiling a Rectangle with the Fewest Squares | Hard | 22.3% | TopicsBacktracking |
| 1342. Number of Steps to Reduce a Number to Zero | Easy | 22.3% | TopicsMathBit Manipulation |
| 1345. Jump Game IV | Hard | 22.3% | TopicsArrayHash TableBreadth-First Search |
| 1366. Rank Teams by Votes | Medium | 22.3% | TopicsArrayHash TableStringSortingCounting |
| 1557. Minimum Number of Vertices to Reach All Nodes | Medium | 22.3% | TopicsGraph TheoryDirected Acyclic Graph |
| 1584. Min Cost to Connect All Points | Medium | 22.3% | TopicsArrayUnion-FindGraph TheoryMinimum Spanning TreePrim's AlgorithmKruskal's AlgorithmBorůvka's Algorithm |
