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Problems

703 problems

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Array274Database207String109Hash Table105Depth-First Search75Math70Dynamic Programming69Sorting61Tree60Breadth-First Search51Binary Tree47Greedy47Binary Search46Matrix38Two Pointers37All topics

With video · Premium · 703 results

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TitleSolutionAcceptDifficultyTopics
1602. Find Nearest Right Node in Binary TreeVideoPremium
Solution75.2%Medium
Binary Tree, Breadth-First Search +1· 1 company
1607. Sellers With No SalesVideoPremium
Solution54.4%Easy
Database
1612. Check If Two Expression Trees are EquivalentVideoPremium
Solution71.8%Medium
Binary Tree, Counting +3· 1 company
1613. Find the Missing IDsVideoPremium
Solution73.0%Medium
Database· 1 company
1618. Maximum Font to Fit a Sentence in a ScreenVideoPremium
Solution62.0%Medium
Array, Binary Search +2· 1 company
1623. All Valid Triplets That Can Represent a CountryVideoPremium
Solution80.8%Easy
Database· 1 company
1628. Design an Expression Tree With Evaluate FunctionVideoPremium
Solution82.4%Medium
Array, Binary Tree +4· 1 company
1634. Add Two Polynomials Represented as Linked ListsVideoPremium
Solution61.1%Medium
Linked List, Math +1· 1 company
1635. Hopper Company Queries IVideoPremium
Solution47.7%Hard
Database· 1 company
1644. Lowest Common Ancestor of a Binary Tree IIVideoPremium
Solution69.6%Medium
Binary Tree, Depth-First Search +1· 4 companies
1645. Hopper Company Queries IIVideoPremium
Solution39.9%Hard
Database· 1 company
1650. Lowest Common Ancestor of a Binary Tree IIIVideoPremium
Solution83.0%Medium
Binary Tree, Hash Table +2· 10 companies
1651. Hopper Company Queries IIIVideoPremium
Solution65.6%Hard
Database· 1 company
1660. Correct a Binary TreeVideoPremium
Solution74.3%Medium
Binary Tree, Breadth-First Search +3· 1 company
1666. Change the Root of a Binary TreeVideoPremium
Solution74.4%Medium
Binary Tree, Depth-First Search +1· 1 company
1676. Lowest Common Ancestor of a Binary Tree IVVideoPremium
Solution79.6%Medium
Binary Tree, Depth-First Search +2· 4 companies
1677. Product's Worth Over InvoicesVideoPremium
Solution38.2%Easy
Database
1682. Longest Palindromic Subsequence IIVideoPremium
Solution50.1%Medium
Dynamic Programming, String
1692. Count Ways to Distribute CandiesVideoPremium
Solution62.7%Hard
Dynamic Programming· 1 company
1698. Number of Distinct Substrings in a StringVideoPremium
Solution64.4%Medium
Hash Function, Rolling Hash +3· 4 companies
1699. Number of Calls Between Two PersonsVideoPremium
Solution80.6%Medium
Database· 1 company
1708. Largest Subarray Length KVideoPremium
Solution65.7%Easy
Array, Greedy· 1 company
1709. Biggest Window Between VisitsVideoPremium
Solution69.6%Medium
Database
1714. Sum Of Special Evenly-Spaced Elements In ArrayVideoPremium
Solution49.9%Hard
Array, Dynamic Programming· 1 company
1715. Count Apples and OrangesVideoPremium
Solution75.6%Medium
Database
1724. Checking Existence of Edge Length Limited Paths IIVideoPremium
Solution51.2%Hard
Graph, Minimum Spanning Tree +1· 2 companies
1730. Shortest Path to Get FoodVideoPremium
Solution57.7%Medium
Array, Breadth-First Search +1· 2 companies
1740. Find Distance in a Binary TreeVideoPremium
Solution74.3%Medium
Binary Tree, Breadth-First Search +3· 2 companies
1746. Maximum Subarray Sum After One OperationVideoPremium
Solution65.2%Medium
Array, Dynamic Programming· 1 company
1747. Leetflex Banned AccountsVideoPremium
Solution61.6%Medium
Database· 1 company
1756. Design Most Recently Used QueueVideoPremium
Solution78.0%Medium
Array, Binary Indexed Tree +4· 2 companies
1762. Buildings With an Ocean ViewVideoPremium
Solution80.9%Medium
Array, Monotonic Stack +1· 5 companies
1767. Find the Subtasks That Did Not ExecuteVideoPremium
Solution78.0%Hard
Database· 1 company
1772. Sort Features by PopularityVideoPremium
Solution66.4%Medium
Array, Hash Table +2· 1 company
1777. Product's Price for Each StoreVideoPremium
Solution82.3%Easy
Database· 2 companies
1778. Shortest Path in a Hidden GridVideoPremium
Solution44.5%Medium
Breadth-First Search, Depth-First Search +2· 3 companies
1783. Grand Slam TitlesVideoPremium
Solution83.2%Medium
Database· 1 company
1788. Maximize the Beauty of the GardenVideoPremium
Solution62.8%Hard
Array, Greedy +2· 1 company
1794. Count Pairs of Equal Substrings With Minimum DifferenceVideoPremium
Solution62.7%Medium
Greedy, Hash Table +1· 1 company
1804. Implement Trie II (Prefix Tree)VideoPremium
Solution63.6%Medium
Design, Hash Table +2· 2 companies
1809. Ad-Free SessionsVideoPremium
Solution58.6%Easy
Database· 1 company
1810. Minimum Path Cost in a Hidden GridVideoPremium
Solution58.7%Medium
Breadth-First Search, Depth-First Search +3· 2 companies
1811. Find Interview CandidatesVideoPremium
Solution60.8%Medium
Database· 1 company
1820. Maximum Number of Accepted InvitationsVideoPremium
Solution52.4%Medium
Array, Depth-First Search +2· 2 companies
1821. Find Customers With Positive Revenue this YearVideoPremium
Solution87.7%Easy
Database· 1 company
1826. Faulty SensorVideoPremium
Solution50.2%Easy
Array, Two Pointers· 1 company
1831. Maximum Transaction Each DayVideoPremium
Solution82.1%Medium
Database
1836. Remove Duplicates From an Unsorted Linked ListVideoPremium
Solution75.6%Medium
Hash Table, Linked List· 2 companies
1841. League StatisticsVideoPremium
Solution53.4%Medium
Database
1842. Next Palindrome Using Same DigitsVideoPremium
Solution54.2%Hard
String, Two Pointers· 1 company
Showing 301–350 of 703