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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
593. Valid SquareVideo
Solution45.5%Medium
Geometry, Math· 3 companies
598. Range Addition IIVideo
Solution59.1%Easy
Array, Math· 3 companies
625. Minimum FactorizationVideoPremium
Solution34.2%Medium
Greedy, Math· 1 company
628. Maximum Product of Three NumbersVideo
Solution48.0%Easy
Array, Math +1· 15 companies
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
660. Remove 9VideoPremium
–57.3%Hard
Math· 1 company
667. Beautiful Arrangement IIVideo
Solution61.1%Medium
Array, Math· 2 companies
668. Kth Smallest Number in Multiplication TableVideo
Solution55.1%Hard
Binary Search, Math· 5 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
679. 24 GameVideo
Solution59.4%Hard
Array, Backtracking +1· 7 companies
710. Random Pick with BlacklistVideo
Solution35.4%Hard
Array, Binary Search +4· 3 companies
728. Self Dividing NumbersVideo
Solution81.3%Easy
Math· 5 companies
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
762. Prime Number of Set Bits in Binary RepresentationVideo
Solution78.7%Easy
Bit Manipulation, Math· 2 companies
770. Basic Calculator IVVideo
Solution49.8%Hard
Hash Table, Math +3· 3 companies
772. Basic Calculator IIIVideoPremium
Solution53.2%Hard
Math, Recursion +2· 16 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
780. Reaching PointsVideo
Solution34.9%Hard
Math· 14 companies
781. Rabbits in ForestVideo
Solution58.0%Medium
Array, Greedy +2· 8 companies
782. Transform to ChessboardVideo
Solution51.9%Hard
Array, Bit Manipulation +2· 2 companies
788. Rotated DigitsVideo
Solution63.9%Medium
Dynamic Programming, Math· 6 companies
789. Escape The GhostsVideo
Solution64.2%Medium
Array, Math· 2 companies
793. Preimage Size of Factorial Zeroes FunctionVideo
Solution48.0%Hard
Binary Search, Math· 1 company
800. Similar RGB ColorVideoPremium
Solution68.6%Easy
Enumeration, Math +1· 1 company
805. Split Array With Same AverageVideo
Solution27.5%Hard
Array, Bit Manipulation +3· 6 companies
808. Soup ServingsVideo
Solution59.7%Medium
Dynamic Programming, Math +1· 3 companies
810. Chalkboard XOR GameVideo
Solution67.3%Hard
Array, Bit Manipulation +3· 3 companies
812. Largest Triangle AreaVideo
Solution72.1%Easy
Array, Geometry +1· 3 companies
829. Consecutive Numbers SumVideo
Solution42.6%Hard
Enumeration, Math· 7 companies
836. Rectangle OverlapVideo
Solution53.0%Easy
Geometry, Math· 4 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
843. Guess the WordVideo
Solution36.9%Hard
Array, Game Theory +3· 10 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
878. Nth Magical NumberVideo
Solution37.1%Hard
Binary Search, Math· 3 companies
883. Projection Area of 3D ShapesVideo
Solution76.9%Easy
Array, Geometry +2· 1 company
887. Super Egg DropVideo
Solution30.6%Hard
Binary Search, Dynamic Programming +1· 5 companies
891. Sum of Subsequence WidthsVideo
Solution41.1%Hard
Array, Math +1
892. Surface Area of 3D ShapesVideo
Solution71.2%Easy
Array, Geometry +2· 1 company
Showing 101–150 of 691