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Problems

4,005 problems

Has videoPremium onlyReset
Array2,209String870Hash Table786Math682Dynamic Programming666Sorting504Greedy480Binary Search352Depth-First Search335Database303Bit Manipulation283Matrix278Tree261Breadth-First Search255Two Pointers249All topics

With video · 4,005 results

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TitleSolutionAcceptDifficultyTopics
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
602. Friend Requests II: Who Has the Most FriendsVideo
Solution64.0%Medium
Database· 5 companies
603. Consecutive Available SeatsVideoPremium
Solution64.9%Easy
Database
604. Design Compressed String IteratorVideoPremium
Solution40.5%Easy
Array, Design +2· 1 company
605. Can Place FlowersVideo
Solution28.8%Easy
Array, Greedy· 16 companies
606. Construct String from Binary TreeVideo
Solution70.6%Medium
Binary Tree, Depth-First Search +2· 3 companies
607. Sales PersonVideo
Solution66.6%Easy
Database· 4 companies
608. Tree NodeVideo
Solution76.7%Medium
Database· 4 companies
609. Find Duplicate File in SystemVideo
Solution67.6%Medium
Array, Hash Table +1· 7 companies
610. Triangle JudgementVideo
Solution75.4%Easy
Database· 5 companies
611. Valid Triangle NumberVideo
Solution56.8%Medium
Array, Binary Search +3· 9 companies
612. Shortest Distance in a PlaneVideoPremium
Solution61.3%Medium
Database· 1 company
613. Shortest Distance in a LineVideoPremium
Solution80.0%Easy
Database
614. Second Degree FollowerVideoPremium
Solution41.0%Medium
Database
615. Average Salary: Departments VS CompanyVideoPremium
Solution56.2%Hard
Database
616. Add Bold Tag in StringVideoPremium
Solution51.4%Medium
Array, Hash Table +3· 4 companies
617. Merge Two Binary TreesVideo
Solution79.2%Easy
Binary Tree, Breadth-First Search +2· 8 companies
618. Students Report By GeographyVideoPremium
Solution63.5%Hard
Database
619. Biggest Single NumberVideo
Solution72.4%Easy
Database· 3 companies
620. Not Boring MoviesVideo
Solution75.3%Easy
Database· 5 companies
621. Task SchedulerVideo
Solution64.0%Medium
Array, Counting +4· 24 companies
622. Design Circular QueueVideo
Solution55.4%Medium
Array, Design +2· 21 companies
623. Add One Row to TreeVideo
Solution64.1%Medium
Binary Tree, Breadth-First Search +2· 3 companies
624. Maximum Distance in ArraysVideo
Solution45.7%Medium
Array, Greedy· 5 companies
625. Minimum FactorizationVideoPremium
Solution34.2%Medium
Greedy, Math· 1 company
626. Exchange SeatsVideo
Solution75.1%Medium
Database· 9 companies
627. Swap SalaryVideo
Solution83.6%Easy
Database
627. Swap Sex of EmployeesVideo
Solution85.1%Easy
Database· 5 companies
628. Maximum Product of Three NumbersVideo
Solution48.0%Easy
Array, Math +1· 15 companies
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
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
635. Design Log Storage SystemVideoPremium
Solution59.8%Medium
Design, Hash Table +2· 4 companies
636. Exclusive Time of FunctionsVideo
Solution66.2%Medium
Array, Stack· 13 companies
637. Average of Levels in Binary TreeVideo
Solution74.8%Easy
Binary Tree, Breadth-First Search +2· 4 companies
638. Shopping OffersVideo
Solution52.9%Medium
Array, Backtracking +4· 6 companies
639. Decode Ways IIVideo
Solution32.4%Hard
Dynamic Programming, String· 3 companies
640. Solve the EquationVideo
Solution46.7%Medium
Math, Simulation +1· 2 companies
641. Design Circular DequeVideo
Solution65.2%Medium
Array, Design +2· 5 companies
642. Design Search Autocomplete SystemVideoPremium
Solution49.9%Hard
Data Stream, Depth-First Search +5· 12 companies
643. Maximum Average Subarray IVideo
Solution49.2%Easy
Array, Sliding Window· 12 companies
644. Maximum Average Subarray IIVideoPremium
Solution37.7%Hard
Array, Binary Search +1· 1 company
645. Set MismatchVideo
Solution43.4%Easy
Array, Bit Manipulation +2· 7 companies
646. Maximum Length of Pair ChainVideo
Solution62.2%Medium
Array, Dynamic Programming +2· 2 companies
647. Palindromic SubstringsVideo
Solution73.2%Medium
Dynamic Programming, String +1· 25 companies
648. Replace WordsVideo
Solution68.7%Medium
Array, Hash Table +2· 4 companies
Showing 601–650 of 4,005