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Problems

357 problems

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Array2,237String877Hash Table797Math691Dynamic Programming673Sorting508Greedy485Binary Search357Depth-First Search338Database308Bit Manipulation286Matrix279Tree264Breadth-First Search257Prefix Sum252All topics

357 results

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TitleSolutionAcceptDifficultyTopics
4. Median of Two Sorted ArraysVideo
Solution47.9%Hard
Array, Binary Search +1· 45 companies
33. Search in Rotated Sorted ArrayVideo
Solution45.5%Medium
Array, Binary Search· 53 companies
34. Find First and Last Position of Element in Sorted ArrayVideo
Solution49.7%Medium
Array, Binary Search· 29 companies
35. Search Insert PositionVideo
Solution52.1%Easy
Array, Binary Search· 12 companies
69. Sqrt(x)Video
Solution42.2%Easy
Binary Search, Math· 17 companies
74. Search a 2D MatrixVideo
Solution54.4%Medium
Array, Binary Search +1· 19 companies
81. Search in Rotated Sorted Array IIVideo
Solution40.4%Medium
Array, Binary Search· 10 companies
153. Find Minimum in Rotated Sorted ArrayVideo
Solution55.3%Medium
Array, Binary Search· 18 companies
154. Find Minimum in Rotated Sorted Array IIVideo
Solution47.2%Hard
Array, Binary Search· 5 companies
162. Find Peak ElementVideo
Solution46.8%Medium
Array, Binary Search· 30 companies
167. Two Sum II - Input Array Is SortedVideo
Solution65.5%Medium
Array, Binary Search +1· 16 companies
209. Minimum Size Subarray SumVideo
Solution53.1%Medium
Array, Binary Search +2· 18 companies
222. Count Complete Tree NodesVideo
Solution72.6%Medium
Binary Search, Binary Tree +2· 7 companies
240. Search a 2D Matrix IIVideo
Solution58.2%Medium
Array, Binary Search +2· 16 companies
259. 3Sum SmallerVideoPremium
Solution51.4%Medium
Array, Binary Search +2· 7 companies
268. Missing NumberVideo
Solution72.4%Easy
Array, Binary Search +4· 19 companies
270. Closest Binary Search Tree ValueVideoPremium
Solution49.2%Easy
Binary Search, Binary Search Tree +3· 7 companies
275. H-Index IIVideo
Solution40.0%Medium
Array, Binary Search· 1 company
278. First Bad VersionVideo
Solution47.5%Easy
Binary Search, Interactive· 7 companies
287. Find the Duplicate NumberVideo
Solution64.7%Medium
Array, Binary Search +2· 22 companies
300. Longest Increasing SubsequenceVideo
Solution59.8%Medium
Array, Binary Search +1· 30 companies
302. Smallest Rectangle Enclosing Black PixelsVideoPremium
Solution60.9%Hard
Array, Binary Search +3· 1 company
315. Count of Smaller Numbers After SelfVideo
Solution44.0%Hard
Array, Binary Indexed Tree +5· 6 companies
327. Count of Range SumVideo
Solution40.3%Hard
Array, Binary Indexed Tree +5· 5 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
352. Data Stream as Disjoint IntervalsVideo
Solution60.8%Hard
Binary Search, Design +1· 2 companies
354. Russian Doll EnvelopesVideo
Solution37.8%Hard
Array, Binary Search +2· 13 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
367. Valid Perfect SquareVideo
Solution44.8%Easy
Binary Search, Math· 8 companies
374. Guess Number Higher or LowerVideo
Solution58.5%Easy
Binary Search, Interactive· 6 companies
378. Kth Smallest Element in a Sorted MatrixVideo
Solution65.1%Medium
Array, Binary Search +3· 10 companies
400. Nth DigitVideo
Solution38.8%Medium
Binary Search, Math· 8 companies
410. Split Array Largest SumVideo
Solution61.2%Hard
Array, Binary Search +3· 20 companies
436. Find Right IntervalVideo
Solution56.7%Medium
Array, Binary Search +1· 4 companies
441. Arranging CoinsVideo
Solution48.7%Easy
Binary Search, Math· 6 companies
456. 132 PatternVideo
Solution35.2%Medium
Array, Binary Search +3· 8 companies
475. HeatersVideo
Solution42.3%Medium
Array, Binary Search +2· 12 companies
483. Smallest Good BaseVideo
Solution47.6%Hard
Binary Search, Math· 3 companies
493. Reverse PairsVideo
Solution35.1%Hard
Array, Binary Indexed Tree +5· 9 companies
497. Random Point in Non-overlapping RectanglesVideo
Solution40.8%Medium
Array, Binary Search +5· 2 companies
528. Random Pick with WeightVideo
Solution49.0%Medium
Array, Binary Search +3· 26 companies
532. K-diff Pairs in an ArrayVideo
Solution46.3%Medium
Array, Binary Search +3· 8 companies
540. Single Element in a Sorted ArrayVideo
Solution59.3%Medium
Array, Binary Search· 19 companies
611. Valid Triangle NumberVideo
Solution56.8%Medium
Array, Binary Search +3· 9 companies
633. Sum of Square NumbersVideo
Solution37.0%Medium
Binary Search, Math +1· 6 companies
644. Maximum Average Subarray IIVideoPremium
Solution37.7%Hard
Array, Binary Search +1· 1 company
658. Find K Closest ElementsVideo
Solution50.1%Medium
Array, Binary Search +4· 18 companies
668. Kth Smallest Number in Multiplication TableVideo
Solution55.1%Hard
Binary Search, Math· 5 companies
Showing 1–50 of 357