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Problems

691 problems

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

691 results

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TitleSolutionAcceptDifficultyTopics
360. Sort Transformed ArrayVideoPremium
Solution58.0%Medium
Array, Math +2· 3 companies
365. Water and Jug ProblemVideo
Solution46.4%Medium
Breadth-First Search, Depth-First Search +1· 8 companies
367. Valid Perfect SquareVideo
Solution44.8%Easy
Binary Search, Math· 8 companies
368. Largest Divisible SubsetVideo
Solution50.1%Medium
Array, Dynamic Programming +2· 6 companies
369. Plus One Linked ListVideoPremium
Solution61.1%Medium
Linked List, Math· 2 companies
371. Sum of Two IntegersVideo
Solution55.9%Medium
Bit Manipulation, Math· 8 companies
372. Super PowVideo
Solution37.3%Medium
Divide and Conquer, Math· 4 companies
375. Guess Number Higher or Lower IIVideo
Solution53.8%Medium
Dynamic Programming, Game Theory +1· 3 companies
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
382. Linked List Random NodeVideo
Solution65.3%Medium
Linked List, Math +2· 3 companies
384. Shuffle an ArrayVideo
Solution59.6%Medium
Array, Design +2· 8 companies
390. Elimination GameVideo
Solution46.7%Medium
Math, Recursion· 6 companies
396. Rotate FunctionVideo
Solution54.0%Medium
Array, Dynamic Programming +1· 6 companies
398. Random Pick IndexVideo
Solution65.0%Medium
Hash Table, Math +2· 4 companies
400. Nth DigitVideo
Solution38.8%Medium
Binary Search, Math· 8 companies
405. Convert a Number to HexadecimalVideo
Solution54.8%Easy
Bit Manipulation, Math· 6 companies
412. Fizz BuzzVideo
Solution75.9%Easy
Math, Simulation +1· 18 companies
415. Add StringsVideo
Solution52.1%Easy
Math, Simulation +1· 14 companies
423. Reconstruct Original Digits from EnglishVideo
Solution53.4%Medium
Hash Table, Math +1· 4 companies
441. Arranging CoinsVideo
Solution48.7%Easy
Binary Search, Math· 6 companies
445. Add Two Numbers IIVideo
Solution63.1%Medium
Linked List, Math +1· 9 companies
447. Number of BoomerangsVideo
Solution58.0%Medium
Array, Hash Table +1· 2 companies
453. Minimum Moves to Equal Array ElementsVideo
Solution59.2%Medium
Array, Math· 8 companies
458. Poor PigsVideo
Solution59.4%Hard
Combinatorics, Dynamic Programming +1· 1 company
462. Minimum Moves to Equal Array Elements IIVideo
Solution62.2%Medium
Array, Math +1· 5 companies
464. Can I WinVideo
Solution31.7%Medium
Bit Manipulation, Bitmask +4· 4 companies
469. Convex PolygonVideoPremium
Solution40.3%Medium
Array, Geometry +1· 1 company
470. Implement Rand10() Using Rand7()Video
Solution47.0%Medium
Math, Probability and Statistics +2· 6 companies
477. Total Hamming DistanceVideo
Solution55.3%Medium
Array, Bit Manipulation +1· 3 companies
478. Generate Random Point in a CircleVideo
Solution43.8%Medium
Geometry, Math +2· 2 companies
479. Largest Palindrome ProductVideo
Solution40.2%Hard
Enumeration, Math· 1 company
483. Smallest Good BaseVideo
Solution47.6%Hard
Binary Search, Math· 3 companies
486. Predict the WinnerVideo
Solution59.7%Medium
Array, Dynamic Programming +3· 6 companies
492. Construct the RectangleVideo
Solution65.2%Easy
Math· 2 companies
497. Random Point in Non-overlapping RectanglesVideo
Solution40.8%Medium
Array, Binary Search +5· 2 companies
504. Base 7Video
Solution55.3%Easy
Math· 4 companies
507. Perfect NumberVideo
Solution50.6%Easy
Math· 8 companies
509. Fibonacci NumberVideo
Solution74.6%Easy
Dynamic Programming, Math +2· 16 companies
519. Random Flip MatrixVideo
Solution46.9%Medium
Hash Table, Math +2· 1 company
523. Continuous Subarray SumVideo
Solution31.3%Medium
Array, Hash Table +2· 9 companies
528. Random Pick with WeightVideo
Solution49.0%Medium
Array, Binary Search +3· 26 companies
537. Complex Number MultiplicationVideo
Solution73.9%Medium
Math, Simulation +1· 3 companies
539. Minimum Time DifferenceVideo
Solution62.7%Medium
Array, Math +2· 9 companies
553. Optimal DivisionVideo
Solution64.0%Medium
Array, Dynamic Programming +1· 1 company
556. Next Greater Element IIIVideo
Solution35.2%Medium
Math, String +1· 11 companies
564. Find the Closest PalindromeVideo
Solution32.2%Hard
Math, String· 8 companies
573. Squirrel SimulationVideoPremium
Solution57.1%Medium
Array, Math· 1 company
587. Erect the FenceVideo
Solution53.4%Hard
Array, Geometry +1· 3 companies
592. Fraction Addition and SubtractionVideo
Solution66.6%Medium
Math, Simulation +1· 5 companies
Showing 51–100 of 691