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Problems

942 problems

Has videoPremium onlyReset
Array566Dynamic Programming328String188Math182Binary Search133Hash Table132Sorting104Greedy102Bit Manipulation101Graph92Depth-First Search88Heap (Priority Queue)77Prefix Sum75Matrix74Breadth-First Search70All topics

Hard · With video · 942 results

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TitleSolutionAcceptDifficultyTopics
564. Find the Closest PalindromeVideo
Solution32.2%Hard
Math, String· 8 companies
568. Maximum Vacation DaysVideoPremium
Solution46.7%Hard
Array, Dynamic Programming +1· 3 companies
569. Median Employee SalaryVideoPremium
Solution65.9%Hard
Database· 2 companies
571. Find Median Given Frequency of NumbersVideoPremium
Solution42.4%Hard
Database· 1 company
579. Find Cumulative Salary of an EmployeeVideoPremium
Solution49.6%Hard
Database· 1 company
587. Erect the FenceVideo
Solution53.4%Hard
Array, Geometry +1· 3 companies
588. Design In-Memory File SystemVideoPremium
Solution48.0%Hard
Design, Hash Table +3· 16 companies
591. Tag ValidatorVideo
Solution41.7%Hard
Stack, String· 2 companies
600. Non-negative Integers without Consecutive OnesVideo
Solution43.1%Hard
Dynamic Programming· 5 companies
601. Human Traffic of StadiumVideo
Solution52.4%Hard
Database· 6 companies
615. Average Salary: Departments VS CompanyVideoPremium
Solution56.2%Hard
Database
618. Students Report By GeographyVideoPremium
Solution63.5%Hard
Database
629. K Inverse Pairs ArrayVideo
Solution49.2%Hard
Dynamic Programming· 4 companies
630. Course Schedule IIIVideo
Solution42.1%Hard
Array, Greedy +2· 4 companies
631. Design Excel Sum FormulaVideoPremium
–39.3%Hard
Array, Design +3· 9 companies
632. Smallest Range Covering Elements from K ListsVideo
Solution70.3%Hard
Array, Greedy +4· 10 companies
639. Decode Ways IIVideo
Solution32.4%Hard
Dynamic Programming, String· 3 companies
642. Design Search Autocomplete SystemVideoPremium
Solution49.9%Hard
Data Stream, Depth-First Search +5· 12 companies
644. Maximum Average Subarray IIVideoPremium
Solution37.7%Hard
Array, Binary Search +1· 1 company
656. Coin PathVideoPremium
Solution34.2%Hard
Array, Dynamic Programming· 1 company
660. Remove 9VideoPremium
–57.3%Hard
Math· 1 company
664. Strange PrinterVideo
Solution61.0%Hard
Dynamic Programming, String· 9 companies
668. Kth Smallest Number in Multiplication TableVideo
Solution55.1%Hard
Binary Search, Math· 5 companies
675. Cut Off Trees for Golf EventVideo
Solution36.8%Hard
Array, Breadth-First Search +2· 2 companies
679. 24 GameVideo
Solution59.4%Hard
Array, Backtracking +1· 7 companies
683. K Empty SlotsVideoPremium
Solution38.0%Hard
Array, Binary Indexed Tree +6· 1 company
685. Redundant Connection IIVideo
Solution36.6%Hard
Breadth-First Search, Depth-First Search +2· 1 company
689. Maximum Sum of 3 Non-Overlapping SubarraysVideo
Solution59.8%Hard
Array, Dynamic Programming· 6 companies
691. Stickers to Spell WordVideo
Solution51.3%Hard
Array, Backtracking +4· 4 companies
699. Falling SquaresVideo
Solution48.9%Hard
Array, Ordered Set +1· 2 companies
710. Random Pick with BlacklistVideo
Solution35.4%Hard
Array, Binary Search +4· 3 companies
711. Number of Distinct Islands IIVideoPremium
Solution55.3%Hard
Breadth-First Search, Depth-First Search +3· 2 companies
715. Range ModuleVideo
Solution45.4%Hard
Design, Ordered Set +1· 5 companies
716. Max StackVideoPremium
Solution45.9%Hard
Design, Doubly-Linked List +3· 10 companies
719. Find K-th Smallest Pair DistanceVideo
Solution46.4%Hard
Array, Binary Search +2· 5 companies
726. Number of AtomsVideo
Solution65.1%Hard
Hash Table, Sorting +2· 8 companies
727. Minimum Window SubsequenceVideoPremium
Solution43.5%Hard
Dynamic Programming, Sliding Window +1· 5 companies
730. Count Different Palindromic SubsequencesVideo
Solution48.2%Hard
Dynamic Programming, String· 4 companies
732. My Calendar IIIVideo
Solution72.4%Hard
Binary Search, Design +3· 1 company
736. Parse Lisp ExpressionVideo
Solution54.1%Hard
Hash Table, Recursion +2· 4 companies
741. Cherry PickupVideo
Solution40.4%Hard
Array, Dynamic Programming +1· 10 companies
745. Prefix and Suffix SearchVideo
Solution41.2%Hard
Array, Design +3· 3 companies
749. Contain VirusVideo
Solution56.5%Hard
Array, Breadth-First Search +3· 3 companies
753. Cracking the SafeVideo
Solution58.5%Hard
Depth-First Search, Eulerian Circuit +1· 1 company
757. Set Intersection Size At Least TwoVideo
Solution58.0%Hard
Array, Greedy +1· 6 companies
759. Employee Free TimeVideoPremium
Solution72.9%Hard
Array, Heap (Priority Queue) +1· 12 companies
761. Special Binary StringVideo
Solution79.4%Hard
Recursion, String· 12 companies
765. Couples Holding HandsVideo
Solution59.8%Hard
Breadth-First Search, Depth-First Search +3· 5 companies
768. Max Chunks To Make Sorted IIVideo
Solution54.7%Hard
Array, Greedy +3· 5 companies
770. Basic Calculator IVVideo
Solution49.8%Hard
Hash Table, Math +3· 3 companies
Showing 101–150 of 942