Visa
150 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 1743. Restore the Array From Adjacent Pairs | Medium | 38.6% | TopicsArrayHash TableDepth-First Search |
| 17. Letter Combinations of a Phone Number | Medium | 38.6% | TopicsHash TableStringBacktracking |
| 332. Reconstruct Itinerary | Hard | 38.6% | TopicsArrayStringDepth-First SearchGraph TheorySortingHeap (Priority Queue)Eulerian CircuitEulerian PathSemi-Eulerian Graph |
| 67. Add Binary | Easy | 38.6% | TopicsMathStringBit ManipulationSimulation |
| 1046. Last Stone Weight | Easy | 38.6% | TopicsArrayHeap (Priority Queue) |
| 3433. Count Mentions Per User | Medium | 38.6% | TopicsArrayMathSortingSimulation |
| Maximal Rectangle | Hard | 38.6% | TopicsArrayDynamic ProgrammingStackMatrixMonotonic Stack |
| 258. Add Digits | Easy | 38.6% | TopicsMathSimulationNumber Theory |
| Candy | Hard | 38.6% | TopicsArrayGreedy |
| 2544. Alternating Digit Sum | Easy | 38.6% | TopicsMath |
| Next Greater Element II | Medium | 38.6% | TopicsArrayStackMonotonic Stack |
| 79. Word Search | Medium | 38.6% | TopicsArrayStringBacktrackingDepth-First SearchMatrix |
| 88. Merge Sorted Array | Easy | 38.6% | TopicsArrayTwo PointersSorting |
| 125. Valid Palindrome | Easy | 38.6% | TopicsTwo PointersString |
| 387. First Unique Character in a String | Easy | 38.6% | TopicsHash TableStringQueueCounting |
| 1922. Count Good Numbers | Medium | 38.6% | TopicsMathRecursion |
| 435. Non-overlapping Intervals | Medium | 38.6% | TopicsArrayDynamic ProgrammingGreedySorting |
| 2530. Maximal Score After Applying K Operations | Medium | 38.6% | TopicsArrayGreedyHeap (Priority Queue) |
| 733. Flood Fill | Easy | 38.6% | TopicsArrayDepth-First SearchBreadth-First SearchMatrix |
| Meeting Rooms II | Medium | 38.6% | TopicsArrayTwo PointersGreedySortingHeap (Priority Queue)Prefix Sum |
| 139. Word Break | Medium | 38.6% | TopicsArrayHash TableStringDynamic ProgrammingTrieMemoizationBrute-Force Search |
| Word Break II | Hard | 38.6% | TopicsArrayHash TableStringDynamic ProgrammingBacktrackingTrieMemoization |
| 3035. Maximum Palindromes After Operations | Medium | 38.6% | TopicsArrayHash TableStringGreedySortingCounting |
| 1696. Jump Game VI | Medium | 38.6% | TopicsArrayDynamic ProgrammingQueueHeap (Priority Queue)Monotonic Queue |
| 1631. Path With Minimum Effort | Medium | 38.6% | TopicsArrayBinary SearchDepth-First SearchBreadth-First SearchUnion-FindHeap (Priority Queue)MatrixDijkstra's Algorithm |
