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Array1,212 Hash Table473 String437 Math331 Greedy330 Dynamic Programming327 Sorting302 Depth-First Search208 Binary Search189 Breadth-First Search166 Matrix163 Tree158 Prefix Sum155 Two Pointers150 Database137 All topics

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TitleSolutionAcceptDifficultyTopics

1664. Ways to Make a Fair ArrayVideo

Solution67.8%Medium

Array, Prefix Sum· 7 companies

1666. Change the Root of a Binary TreeVideoPremium

Solution74.4%Medium

Binary Tree, Depth-First Search +1· 1 company

1669. Merge In Between Linked ListsVideo

Solution82.9%Medium

Linked List· 11 companies

1670. Design Front Middle Back QueueVideo

Solution59.1%Medium

Array, Data Stream +3· 3 companies

1673. Find the Most Competitive SubsequenceVideo

Solution53.4%Medium

Array, Greedy +2· 2 companies

1674. Minimum Moves to Make Array ComplementaryVideo

Solution65.2%Medium

Array, Hash Table +1· 5 companies

1676. Lowest Common Ancestor of a Binary Tree IVVideoPremium

Solution79.6%Medium

Binary Tree, Depth-First Search +2· 4 companies

1679. Max Number of K-Sum PairsVideo

Solution57.5%Medium

Array, Hash Table +2· 7 companies

1680. Concatenation of Consecutive Binary NumbersVideo

Solution66.6%Medium

Bit Manipulation, Math +1· 3 companies

1682. Longest Palindromic Subsequence IIVideoPremium

Solution50.1%Medium

Dynamic Programming, String

1685. Sum of Absolute Differences in a Sorted ArrayVideo

Solution68.2%Medium

Array, Math +1· 4 companies

1686. Stone Game VIVideo

Solution62.0%Medium

Array, Game Theory +4

1689. Partitioning Into Minimum Number Of Deci-Binary NumbersVideo

Solution90.5%Medium

Greedy, String· 4 companies

1690. Stone Game VIIVideo

Solution59.4%Medium

Array, Dynamic Programming +2· 2 companies

1695. Maximum Erasure ValueVideo

Solution64.2%Medium

Array, Hash Table +1· 7 companies

1696. Jump Game VIVideo

Solution46.4%Medium

Array, Dynamic Programming +3· 6 companies

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

1701. Average Waiting TimeVideo

Solution73.1%Medium

Array, Simulation· 3 companies

1702. Maximum Binary String After ChangeVideo

Solution48.1%Medium

Greedy, String· 1 company

1705. Maximum Number of Eaten ApplesVideo

Solution44.2%Medium

Array, Greedy +1· 1 company

1706. Where Will the Ball FallVideo

Solution72.5%Medium

Array, Matrix +1· 1 company

1709. Biggest Window Between VisitsVideoPremium

Solution69.6%Medium

1711. Count Good MealsVideo

Solution33.3%Medium

Array, Hash Table· 4 companies

1712. Ways to Split Array Into Three SubarraysVideo

Solution34.2%Medium

Array, Binary Search +2· 3 companies

1715. Count Apples and OrangesVideoPremium

Solution75.6%Medium

1717. Maximum Score From Removing SubstringsVideo

Solution66.6%Medium

Greedy, Stack +1· 7 companies

1718. Construct the Lexicographically Largest Valid SequenceVideo

Solution72.7%Medium

Array, Backtracking· 5 companies

1721. Swapping Nodes in a Linked ListVideo

Solution69.9%Medium

Linked List, Two Pointers· 6 companies

1722. Minimize Hamming Distance After Swap OperationsVideo

Solution69.6%Medium

Array, Depth-First Search +1· 3 companies

1726. Tuple with Same ProductVideo

Solution70.1%Medium

Array, Counting +1· 5 companies

1727. Largest Submatrix With RearrangementsVideo

Solution80.3%Medium

Array, Greedy +2· 6 companies

1730. Shortest Path to Get FoodVideoPremium

Solution57.7%Medium

Array, Breadth-First Search +1· 2 companies

1733. Minimum Number of People to TeachVideo

Solution67.7%Medium

Array, Greedy +1· 4 companies

1734. Decode XORed PermutationVideo

Solution67.0%Medium

Array, Bit Manipulation· 1 company

1737. Change Minimum Characters to Satisfy One of Three ConditionsVideo

Solution38.4%Medium

Counting, Hash Table +2· 1 company

1738. Find Kth Largest XOR Coordinate ValueVideo

Solution64.3%Medium

Array, Bit Manipulation +6· 1 company

1740. Find Distance in a Binary TreeVideoPremium

Solution74.3%Medium

Binary Tree, Breadth-First Search +3· 2 companies

1743. Restore the Array From Adjacent PairsVideo

Solution74.7%Medium

Array, Depth-First Search +1· 9 companies

1744. Can You Eat Your Favorite Candy on Your Favorite Day?Video

Solution36.7%Medium

Array, Prefix Sum· 1 company

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

1749. Maximum Absolute Sum of Any SubarrayVideo

Solution70.5%Medium

Array, Dynamic Programming· 5 companies

1750. Minimum Length of String After Deleting Similar EndsVideo

Solution55.9%Medium

String, Two Pointers· 3 companies

1753. Maximum Score From Removing StonesVideo

Solution68.6%Medium

Greedy, Heap (Priority Queue) +1· 1 company

1754. Largest Merge Of Two StringsVideo

Solution54.8%Medium

Greedy, String +1· 1 company

1756. Design Most Recently Used QueueVideoPremium

Solution78.0%Medium

Array, Binary Indexed Tree +4· 2 companies

1759. Count Number of Homogenous SubstringsVideo

Solution57.6%Medium

Math, String· 2 companies

1760. Minimum Limit of Balls in a BagVideo

Solution65.9%Medium

Array, Binary Search· 8 companies

1762. Buildings With an Ocean ViewVideoPremium

Solution80.9%Medium

Array, Monotonic Stack +1· 5 companies

Showing 901–950 of 2,133