Uber
336 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 199. Binary Tree Right Side View | Medium | 49.9% | TopicsTreeDepth-First SearchBreadth-First SearchBinary Tree |
| 202. Happy Number | Easy | 49.9% | TopicsHash TableMathTwo PointersFloyd's Cycle Finding Algorithm |
| 206. Reverse Linked List | Easy | 49.9% | TopicsLinked ListRecursion |
| Implement Trie (Prefix Tree) | Medium | 49.9% | TopicsHash TableStringDesignTrie |
| Group Shifted Strings | Medium | 49.9% | TopicsArrayHash TableString |
| Factor Combinations | Medium | 49.9% | TopicsBacktrackingPrime Factorization |
| Palindrome Permutation | Easy | 49.9% | TopicsHash TableStringBit Manipulation |
| 290. Word Pattern | Easy | 49.9% | TopicsHash TableString |
| Word Pattern II | Medium | 49.9% | TopicsHash TableStringBacktracking |
| 295. Find Median from Data Stream | Hard | 49.9% | TopicsTwo PointersDesignSortingHeap (Priority Queue)Data Stream |
| Longest Palindromic Subsequence | Medium | 49.9% | TopicsStringDynamic Programming |
| Encode and Decode TinyURL | Medium | 49.9% | TopicsHash TableStringDesignHash Function |
| Employee Importance | Medium | 49.9% | TopicsArrayHash TableTreeDepth-First SearchBreadth-First Search |
| Falling Squares | Hard | 49.9% | TopicsArraySegment TreeOrdered Set |
| 733. Flood Fill | Easy | 49.9% | TopicsArrayDepth-First SearchBreadth-First SearchMatrix |
| 752. Open the Lock | Medium | 49.9% | TopicsArrayHash TableStringBreadth-First SearchBidirectional Search |
| Random Pick with Blacklist | Hard | 49.9% | TopicsArrayHash TableMathBinary SearchSortingRandomized |
| 1064. Fixed Point | Easy | 49.9% | TopicsArrayBinary Search |
| 1136. Parallel Courses | Medium | 49.9% | TopicsGraph TheoryTopological SortDirected Acyclic Graph |
| 1039. Minimum Score Triangulation of Polygon | Medium | 49.9% | TopicsArrayDynamic ProgrammingTriangulationPolygons |
| 1171. Remove Zero Sum Consecutive Nodes from Linked List | Medium | 49.9% | TopicsHash TableLinked List |
| 1334. Find the City With the Smallest Number of Neighbors at a Threshold Distance | Medium | 49.9% | TopicsDynamic ProgrammingGraph TheoryShortest PathDijkstra's AlgorithmBellman–Ford AlgorithmFloyd–Warshall Algorithm |
| 1385. Find the Distance Value Between Two Arrays | Easy | 49.9% | TopicsArrayTwo PointersBinary SearchSorting |
| 1400. Construct K Palindrome Strings | Medium | 49.9% | TopicsHash TableStringGreedyCounting |
| 1462. Course Schedule IV | Medium | 49.9% | TopicsDepth-First SearchBreadth-First SearchGraph TheoryTopological Sort |
