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Problems

2,209 problems

Has videoPremium onlyReset
Array2,209String870Hash Table786Math682Dynamic Programming666Sorting504Greedy480Binary Search352Depth-First Search335Database303Bit Manipulation283Matrix278Tree261Breadth-First Search255Two Pointers249All topics

With video · 2,209 results

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TitleSolutionAcceptDifficultyTopics
347. Top K Frequent ElementsVideo
Solution67.3%Medium
Array, Bucket Sort +6· 53 companies
348. Design Tic-Tac-ToeVideoPremium
Solution58.8%Medium
Array, Design +3· 13 companies
349. Intersection of Two ArraysVideo
Solution78.2%Easy
Array, Binary Search +3· 16 companies
350. Intersection of Two Arrays IIVideo
Solution60.4%Easy
Array, Binary Search +3· 9 companies
353. Design Snake GameVideoPremium
Solution40.0%Medium
Array, Design +3· 10 companies
354. Russian Doll EnvelopesVideo
Solution37.8%Hard
Array, Binary Search +2· 13 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
363. Max Sum of Rectangle No Larger Than KVideo
Solution46.0%Hard
Array, Binary Search +3· 3 companies
368. Largest Divisible SubsetVideo
Solution50.1%Medium
Array, Dynamic Programming +2· 6 companies
370. Range AdditionVideoPremium
Solution73.0%Medium
Array, Prefix Sum· 2 companies
373. Find K Pairs with Smallest SumsVideo
Solution42.3%Medium
Array, Heap (Priority Queue)· 10 companies
376. Wiggle SubsequenceVideo
Solution49.9%Medium
Array, Dynamic Programming +1· 1 company
377. Combination Sum IVVideo
Solution55.0%Medium
Array, Dynamic Programming· 7 companies
378. Kth Smallest Element in a Sorted MatrixVideo
Solution65.1%Medium
Array, Binary Search +3· 10 companies
379. Design Phone DirectoryVideoPremium
Solution53.3%Medium
Array, Design +3· 1 company
380. Insert Delete GetRandom O(1)Video
Solution55.3%Medium
Array, Design +3· 38 companies
381. Insert Delete GetRandom O(1) - Duplicates allowedVideo
Solution37.1%Hard
Array, Design +3· 11 companies
384. Shuffle an ArrayVideo
Solution59.6%Medium
Array, Design +2· 8 companies
391. Perfect RectangleVideo
Solution39.4%Hard
Array, Line Sweep· 3 companies
393. UTF-8 ValidationVideo
Solution46.7%Medium
Array, Bit Manipulation· 4 companies
396. Rotate FunctionVideo
Solution54.0%Medium
Array, Dynamic Programming +1· 6 companies
399. Evaluate DivisionVideo
Solution64.7%Medium
Array, Breadth-First Search +5· 23 companies
403. Frog JumpVideo
Solution47.8%Hard
Array, Dynamic Programming· 11 companies
406. Queue Reconstruction by HeightVideo
Solution74.6%Medium
Array, Binary Indexed Tree +2· 5 companies
407. Trapping Rain Water IIVideo
Solution64.0%Hard
Array, Breadth-First Search +2· 14 companies
410. Split Array Largest SumVideo
Solution61.2%Hard
Array, Binary Search +3· 20 companies
411. Minimum Unique Word AbbreviationVideoPremium
–40.5%Hard
Array, Backtracking +2· 2 companies
413. Arithmetic SlicesVideo
Solution65.0%Medium
Array, Dynamic Programming +1· 7 companies
414. Third Maximum NumberVideo
Solution40.3%Easy
Array, Sorting· 9 companies
416. Partition Equal Subset SumVideo
Solution49.9%Medium
Array, Dynamic Programming· 16 companies
417. Pacific Atlantic Water FlowVideo
Solution61.3%Medium
Array, Breadth-First Search +2· 11 companies
418. Sentence Screen FittingVideoPremium
Solution36.3%Medium
Array, Dynamic Programming +1· 1 company
419. Battleships in a BoardVideo
Solution77.4%Medium
Array, Depth-First Search +1· 8 companies
421. Maximum XOR of Two Numbers in an ArrayVideo
Solution53.8%Medium
Array, Bit Manipulation +2· 5 companies
422. Valid Word SquareVideoPremium
Solution42.9%Easy
Array, Matrix· 1 company
425. Word SquaresVideoPremium
Solution54.7%Hard
Array, Backtracking +2· 1 company
427. Construct Quad TreeVideo
Solution78.8%Medium
Array, Divide and Conquer +2· 8 companies
435. Non-overlapping IntervalsVideo
Solution57.5%Medium
Array, Dynamic Programming +2· 18 companies
436. Find Right IntervalVideo
Solution56.7%Medium
Array, Binary Search +1· 4 companies
442. Find All Duplicates in an ArrayVideo
Solution76.8%Medium
Array, Hash Table· 11 companies
444. Sequence ReconstructionVideoPremium
Solution31.2%Medium
Array, Graph +1· 2 companies
446. Arithmetic Slices II - SubsequenceVideo
Solution55.1%Hard
Array, Dynamic Programming· 4 companies
447. Number of BoomerangsVideo
Solution58.0%Medium
Array, Hash Table +1· 2 companies
448. Find All Numbers Disappeared in an ArrayVideo
Solution64.4%Easy
Array, Hash Table· 7 companies
452. Minimum Number of Arrows to Burst BalloonsVideo
Solution61.9%Medium
Array, Greedy +1· 8 companies
453. Minimum Moves to Equal Array ElementsVideo
Solution59.2%Medium
Array, Math· 8 companies
454. 4Sum IIVideo
Solution57.9%Medium
Array, Hash Table· 4 companies
Showing 151–200 of 2,209