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Array194 Database104 Hash Table83 String71 Depth-First Search57 Dynamic Programming49 Tree48 Math45 Sorting43 Breadth-First Search40 Greedy40 Binary Tree38 Binary Search31 Two Pointers29 Matrix28 All topics

Medium · Premium · 194 results

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TitleSolutionAcceptDifficultyTopics

244. Shortest Word Distance IIVideoPremium

Solution62.8%Medium

Array, Design +3· 4 companies

245. Shortest Word Distance IIIVideoPremium

Solution59.4%Medium

Array, String· 2 companies

247. Strobogrammatic Number IIVideoPremium

Solution53.5%Medium

Array, Recursion +1· 2 companies

249. Group Shifted StringsVideoPremium

Solution67.8%Medium

Array, Hash Table +1· 4 companies

251. Flatten 2D VectorVideoPremium

Solution50.5%Medium

Array, Design +2· 4 companies

253. Meeting Rooms IIVideoPremium

Solution52.6%Medium

Array, Greedy +4· 42 companies

255. Verify Preorder Sequence in Binary Search TreeVideoPremium

Solution51.7%Medium

Array, Binary Search Tree +5· 5 companies

256. Paint HouseVideoPremium

Solution64.3%Medium

Array, Dynamic Programming· 8 companies

259. 3Sum SmallerVideoPremium

Solution51.4%Medium

Array, Binary Search +2· 7 companies

271. Encode and Decode StringsVideoPremium

Solution51.9%Medium

Array, Design +1· 11 companies

280. Wiggle SortVideoPremium

Solution68.5%Medium

Array, Greedy +1· 4 companies

281. Zigzag IteratorVideoPremium

Solution67.1%Medium

Array, Design +2· 5 companies

286. Walls and GatesVideoPremium

Solution63.9%Medium

Array, Breadth-First Search +1· 11 companies

288. Unique Word AbbreviationVideoPremium

Solution28.1%Medium

Array, Design +2· 1 company

308. Range Sum Query 2D - MutableVideoPremium

Solution46.0%Medium

Array, Binary Indexed Tree +3· 3 companies

311. Sparse Matrix MultiplicationVideoPremium

Solution69.3%Medium

Array, Hash Table +1· 9 companies

325. Maximum Size Subarray Sum Equals kVideoPremium

Solution50.8%Medium

Array, Hash Table +1· 8 companies

348. Design Tic-Tac-ToeVideoPremium

Solution58.8%Medium

Array, Design +3· 13 companies

353. Design Snake GameVideoPremium

Solution40.0%Medium

Array, Design +3· 10 companies

356. Line ReflectionVideoPremium

Solution36.3%Medium

Array, Hash Table +1· 2 companies

360. Sort Transformed ArrayVideoPremium

Solution58.0%Medium

Array, Math +2· 3 companies

361. Bomb EnemyVideoPremium

Solution52.8%Medium

Array, Dynamic Programming +1· 2 companies

362. Design Hit CounterVideoPremium

Solution69.6%Medium

Array, Binary Search +3· 25 companies

370. Range AdditionVideoPremium

Solution73.0%Medium

Array, Prefix Sum· 2 companies

379. Design Phone DirectoryVideoPremium

Solution53.3%Medium

Array, Design +3· 1 company

418. Sentence Screen FittingVideoPremium

Solution36.3%Medium

Array, Dynamic Programming +1· 1 company

444. Sequence ReconstructionVideoPremium

Solution31.2%Medium

Array, Graph +1· 2 companies

469. Convex PolygonVideoPremium

Solution40.3%Medium

Array, Geometry +1· 1 company

484. Find PermutationVideoPremium

Solution67.0%Medium

Array, Greedy +2· 1 company

487. Max Consecutive Ones IIVideoPremium

Solution52.0%Medium

Array, Dynamic Programming +1· 4 companies

490. The MazeVideoPremium

Solution60.4%Medium

Array, Breadth-First Search +2· 13 companies

505. The Maze IIVideoPremium

Solution55.0%Medium

Array, Breadth-First Search +5· 5 companies

531. Lonely Pixel IVideoPremium

Solution62.3%Medium

Array, Hash Table +1· 1 company

533. Lonely Pixel IIVideoPremium

Solution48.7%Medium

Array, Hash Table +1· 1 company

555. Split Concatenated StringsVideoPremium

Solution43.4%Medium

Array, Greedy +1· 1 company

562. Longest Line of Consecutive One in MatrixVideoPremium

Solution50.5%Medium

Array, Dynamic Programming +1· 1 company

573. Squirrel SimulationVideoPremium

Solution57.1%Medium

Array, Math· 1 company

582. Kill ProcessVideoPremium

Solution70.4%Medium

Array, Breadth-First Search +3· 4 companies

616. Add Bold Tag in StringVideoPremium

Solution51.4%Medium

Array, Hash Table +3· 4 companies

666. Path Sum IVVideoPremium

Solution62.5%Medium

Array, Binary Tree +3· 1 company

702. Search in a Sorted Array of Unknown SizeVideoPremium

Solution73.1%Medium

Array, Binary Search +1· 1 company

723. Candy CrushVideoPremium

Solution77.6%Medium

Array, Matrix +2· 11 companies

737. Sentence Similarity IIVideoPremium

Solution51.2%Medium

Array, Breadth-First Search +4· 4 companies

750. Number Of Corner RectanglesVideoPremium

Solution67.8%Medium

Array, Dynamic Programming +2· 1 company

755. Pour WaterVideoPremium

Solution49.1%Medium

Array, Simulation· 2 companies

758. Bold Words in StringVideoPremium

Solution53.2%Medium

Array, Hash Table +3· 1 company

1057. Campus BikesVideoPremium

Solution58.8%Medium

Array, Greedy +1· 3 companies

1058. Minimize Rounding Error to Meet TargetVideoPremium

Solution45.9%Medium

Array, Greedy +3· 1 company

1060. Missing Element in Sorted ArrayVideoPremium

Solution59.7%Medium

Array, Binary Search· 4 companies

1066. Campus Bikes IIVideoPremium

Solution55.9%Medium

Array, Backtracking +3· 1 company

Showing 1–50 of 194