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Problems

331 problems

Has videoPremium onlyReset
Array1,212Hash Table473String437Math331Greedy330Dynamic Programming327Sorting302Depth-First Search208Binary Search189Breadth-First Search166Matrix163Tree158Prefix Sum155Two Pointers150Database137All topics

Medium · 331 results

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TitleSolutionAcceptDifficultyTopics
486. Predict the WinnerVideo
Solution59.7%Medium
Array, Dynamic Programming +3· 6 companies
497. Random Point in Non-overlapping RectanglesVideo
Solution40.8%Medium
Array, Binary Search +5· 2 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
573. Squirrel SimulationVideoPremium
Solution57.1%Medium
Array, Math· 1 company
592. Fraction Addition and SubtractionVideo
Solution66.6%Medium
Math, Simulation +1· 5 companies
593. Valid SquareVideo
Solution45.5%Medium
Geometry, Math· 3 companies
625. Minimum FactorizationVideoPremium
Solution34.2%Medium
Greedy, Math· 1 company
633. Sum of Square NumbersVideo
Solution37.0%Medium
Binary Search, Math +1· 6 companies
634. Find the Derangement of An ArrayVideoPremium
Solution41.9%Medium
Dynamic Programming, Math· 1 company
640. Solve the EquationVideo
Solution46.7%Medium
Math, Simulation +1· 2 companies
650. 2 Keys KeyboardVideo
Solution59.6%Medium
Dynamic Programming, Math· 7 companies
651. 4 Keys KeyboardVideoPremium
Solution56.5%Medium
Dynamic Programming, Math· 2 companies
667. Beautiful Arrangement IIVideo
Solution61.1%Medium
Array, Math· 2 companies
670. Maximum SwapVideo
Solution51.6%Medium
Greedy, Math· 9 companies
672. Bulb Switcher IIVideo
Solution51.2%Medium
Bit Manipulation, Breadth-First Search +2· 1 company
738. Monotone Increasing DigitsVideo
Solution50.1%Medium
Greedy, Math· 3 companies
750. Number Of Corner RectanglesVideoPremium
Solution67.8%Medium
Array, Dynamic Programming +2· 1 company
754. Reach a NumberVideo
Solution45.5%Medium
Binary Search, Math· 8 companies
775. Global and Local InversionsVideo
Solution42.9%Medium
Array, Math· 1 company
779. K-th Symbol in GrammarVideo
Solution48.7%Medium
Bit Manipulation, Math +1· 7 companies
781. Rabbits in ForestVideo
Solution58.0%Medium
Array, Greedy +2· 8 companies
788. Rotated DigitsVideo
Solution63.9%Medium
Dynamic Programming, Math· 6 companies
789. Escape The GhostsVideo
Solution64.2%Medium
Array, Math· 2 companies
808. Soup ServingsVideo
Solution59.7%Medium
Dynamic Programming, Math +1· 3 companies
837. New 21 GameVideo
Solution52.0%Medium
Dynamic Programming, Math +2· 5 companies
840. Magic Squares In GridVideo
Solution55.1%Medium
Array, Hash Table +2· 5 companies
858. Mirror ReflectionVideo
Solution62.3%Medium
Geometry, Math +1· 3 companies
866. Prime PalindromeVideo
Solution28.6%Medium
Math, Number Theory· 3 companies
869. Reordered Power of 2Video
Solution66.0%Medium
Counting, Enumeration +3· 5 companies
877. Stone GameVideo
Solution77.0%Medium
Array, Dynamic Programming +2· 4 companies
910. Smallest Range IIVideo
Solution38.4%Medium
Array, Greedy +2· 3 companies
932. Beautiful ArrayVideo
Solution70.7%Medium
Array, Divide and Conquer +1· 4 companies
939. Minimum Area RectangleVideo
Solution55.4%Medium
Array, Geometry +3· 8 companies
957. Prison Cells After N DaysVideo
Solution39.0%Medium
Array, Bit Manipulation +2· 1 company
963. Minimum Area Rectangle IIVideo
Solution55.9%Medium
Array, Geometry +1· 2 companies
970. Powerful IntegersVideo
Solution44.5%Medium
Enumeration, Hash Table +1
973. K Closest Points to OriginVideo
Solution69.4%Medium
Array, Divide and Conquer +5· 17 companies
991. Broken CalculatorVideo
Solution56.6%Medium
Greedy, Math· 5 companies
1006. Clumsy FactorialVideo
Solution61.8%Medium
Math, Simulation +1· 4 companies
1015. Smallest Integer Divisible by KVideo
Solution54.4%Medium
Hash Table, Math· 6 companies
1017. Convert to Base -2
Solution63.6%Medium
Math· 4 companies
1033. Moving Stones Until ConsecutiveVideo
Solution52.8%Medium
Brainteaser, Math· 1 company
1040. Moving Stones Until Consecutive IIVideo
Solution59.4%Medium
Array, Math +2· 1 company
1041. Robot Bounded In CircleVideo
Solution56.6%Medium
Math, Simulation +1· 11 companies
Showing 51–100 of 331