Talentd
For employersSign in
JobsInternshipsPracticeResume toolsCompaniesArticles
For employers
FleetCode
Make and follow sheets.Sign in

Problems

338 problems

Has videoPremium onlyReset
Array2,237String877Hash Table797Math691Dynamic Programming673Sorting508Greedy485Binary Search357Depth-First Search338Database308Bit Manipulation286Matrix279Tree264Breadth-First Search257Prefix Sum252All topics

338 results

Sign in to see which of these you have solved.Sign in
TitleSolutionAcceptDifficultyTopics
669. Trim a Binary Search TreeVideo
Solution66.9%Medium
Binary Search Tree, Binary Tree +2· 4 companies
671. Second Minimum Node In a Binary TreeVideo
Solution46.0%Easy
Binary Tree, Depth-First Search +1· 2 companies
672. Bulb Switcher IIVideo
Solution51.2%Medium
Bit Manipulation, Breadth-First Search +2· 1 company
676. Implement Magic DictionaryVideo
Solution57.8%Medium
Depth-First Search, Design +3· 2 companies
684. Redundant ConnectionVideo
Solution68.0%Medium
Breadth-First Search, Depth-First Search +2· 8 companies
685. Redundant Connection IIVideo
Solution36.6%Hard
Breadth-First Search, Depth-First Search +2· 1 company
687. Longest Univalue PathVideo
Solution44.3%Medium
Binary Tree, Depth-First Search +1· 7 companies
690. Employee ImportanceVideo
Solution69.4%Medium
Array, Breadth-First Search +3· 6 companies
694. Number of Distinct IslandsVideoPremium
Solution62.8%Medium
Breadth-First Search, Depth-First Search +3· 12 companies
695. Max Area of IslandVideo
Solution73.9%Medium
Array, Breadth-First Search +3· 20 companies
711. Number of Distinct Islands IIVideoPremium
Solution55.3%Hard
Breadth-First Search, Depth-First Search +3· 2 companies
721. Accounts MergeVideo
Solution62.2%Medium
Array, Breadth-First Search +5· 17 companies
733. Flood FillVideo
Solution68.6%Easy
Array, Breadth-First Search +2· 12 companies
737. Sentence Similarity IIVideoPremium
Solution51.2%Medium
Array, Breadth-First Search +4· 4 companies
742. Closest Leaf in a Binary TreeVideoPremium
Solution47.4%Medium
Binary Tree, Breadth-First Search +2· 3 companies
743. Network Delay TimeVideo
Solution61.7%Medium
Breadth-First Search, Depth-First Search +3· 9 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
756. Pyramid Transition MatrixVideo
Solution60.6%Medium
Bit Manipulation, Breadth-First Search +1· 3 companies
765. Couples Holding HandsVideo
Solution59.8%Hard
Breadth-First Search, Depth-First Search +3· 5 companies
778. Swim in Rising WaterVideo
Solution68.3%Hard
Array, Binary Search +5· 8 companies
783. Minimum Distance Between BST NodesVideo
Solution61.8%Easy
Binary Search Tree, Binary Tree +3· 4 companies
785. Is Graph Bipartite?Video
Solution59.6%Medium
Breadth-First Search, Depth-First Search +2· 11 companies
787. Cheapest Flights Within K StopsVideo
Solution42.7%Medium
Breadth-First Search, Depth-First Search +4· 18 companies
797. All Paths From Source to TargetVideo
Solution83.6%Medium
Backtracking, Breadth-First Search +2· 5 companies
802. Find Eventual Safe StatesVideo
Solution71.6%Medium
Breadth-First Search, Depth-First Search +2· 7 companies
814. Binary Tree PruningVideo
Solution72.3%Medium
Binary Tree, Depth-First Search +1· 5 companies
827. Making A Large IslandVideo
Solution57.0%Hard
Array, Breadth-First Search +3· 16 companies
834. Sum of Distances in TreeVideo
Solution65.8%Hard
Depth-First Search, Dynamic Programming +2· 5 companies
839. Similar String GroupsVideo
Solution56.7%Hard
Array, Breadth-First Search +4· 5 companies
841. Keys and RoomsVideo
Solution76.2%Medium
Breadth-First Search, Depth-First Search +1· 10 companies
851. Loud and RichVideo
Solution63.9%Medium
Array, Depth-First Search +2· 6 companies
863. All Nodes Distance K in Binary TreeVideo
Solution68.1%Medium
Binary Tree, Breadth-First Search +3· 16 companies
865. Smallest Subtree with all the Deepest NodesVideo
Solution77.5%Medium
Binary Tree, Breadth-First Search +3· 4 companies
872. Leaf-Similar TreesVideo
Solution70.0%Easy
Binary Tree, Depth-First Search +1· 5 companies
886. Possible BipartitionVideo
Solution53.0%Medium
Breadth-First Search, Depth-First Search +2· 11 companies
897. Increasing Order Search TreeVideo
Solution79.1%Easy
Binary Search Tree, Binary Tree +3· 2 companies
924. Minimize Malware SpreadVideo
Solution43.6%Hard
Array, Breadth-First Search +4· 10 companies
928. Minimize Malware Spread IIVideo
Solution46.2%Hard
Array, Breadth-First Search +4· 2 companies
934. Shortest BridgeVideo
Solution59.9%Medium
Array, Breadth-First Search +2· 16 companies
938. Range Sum of BSTVideo
Solution87.7%Easy
Binary Search Tree, Binary Tree +2· 6 companies
947. Most Stones Removed with Same Row or ColumnVideo
Solution63.4%Medium
Depth-First Search, Graph +2· 10 companies
951. Flip Equivalent Binary TreesVideo
Solution69.8%Medium
Binary Tree, Depth-First Search +1· 4 companies
959. Regions Cut By SlashesVideo
Solution77.8%Medium
Array, Breadth-First Search +4· 6 companies
965. Univalued Binary TreeVideo
Solution73.5%Easy
Binary Tree, Breadth-First Search +2· 3 companies
968. Binary Tree CamerasVideo
Solution48.3%Hard
Binary Tree, Depth-First Search +2· 14 companies
971. Flip Binary Tree To Match Preorder TraversalVideo
Solution51.9%Medium
Binary Tree, Depth-First Search +1
979. Distribute Coins in Binary TreeVideo
Solution77.2%Medium
Binary Tree, Depth-First Search +1· 8 companies
987. Vertical Order Traversal of a Binary TreeVideo
Solution54.6%Hard
Binary Tree, Breadth-First Search +4· 15 companies
988. Smallest String Starting From LeafVideo
Solution61.2%Medium
Backtracking, Binary Tree +3· 2 companies
Showing 101–150 of 338