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Problems

190 problems

Has videoPremium onlyReset
GraphArray2,237String877Hash Table797Math691Dynamic Programming673Sorting508Greedy485Binary Search357Depth-First Search338Database308Bit Manipulation286Matrix279Tree264Breadth-First Search257Prefix Sum252All topics

190 results

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TitleSolutionAcceptDifficultyTopics
1361. Validate Binary Tree NodesVideo
Solution44.3%Medium
Binary Tree, Breadth-First Search +4· 3 companies
1368. Minimum Cost to Make at Least One Valid Path in a GridVideo
Solution70.9%Hard
Array, Breadth-First Search +4· 8 companies
1377. Frog Position After T SecondsVideo
Solution38.8%Hard
Breadth-First Search, Depth-First Search +2· 2 companies
1462. Course Schedule IVVideo
Solution60.4%Medium
Breadth-First Search, Depth-First Search +2· 6 companies
1466. Reorder Routes to Make All Paths Lead to the City ZeroVideo
Solution65.7%Medium
Breadth-First Search, Depth-First Search +1· 5 companies
1489. Find Critical and Pseudo-Critical Edges in Minimum Spanning TreeVideo
Solution66.4%Hard
Graph, Minimum Spanning Tree +3· 4 companies
1494. Parallel Courses IIVideo
Solution31.3%Hard
Bit Manipulation, Bitmask +2· 3 companies
1514. Path with Maximum ProbabilityVideo
Solution65.9%Medium
Array, Graph +2· 5 companies
1548. The Most Similar Path in a GraphVideoPremium
Solution59.2%Hard
Dynamic Programming, Graph· 1 company
1557. Minimum Number of Vertices to Reach All NodesVideo
Solution81.6%Medium
Graph· 4 companies
1579. Remove Max Number of Edges to Keep Graph Fully TraversableVideo
Solution70.1%Hard
Graph, Union Find· 4 companies
1584. Min Cost to Connect All PointsVideo
Solution71.7%Medium
Array, Graph +2· 10 companies
1591. Strange Printer IIVideo
Solution61.4%Hard
Array, Graph +2· 1 company
1615. Maximal Network RankVideo
Solution65.9%Medium
Graph· 1 company
1632. Rank Transform of a MatrixVideo
Solution42.7%Hard
Array, Graph +4· 3 companies
1697. Checking Existence of Edge Length Limited PathsVideo
Solution63.8%Hard
Array, Graph +3· 3 companies
1719. Number Of Ways To Reconstruct A TreeVideo
Solution46.3%Hard
Graph, Tree· 1 company
1724. Checking Existence of Edge Length Limited Paths IIVideoPremium
Solution51.2%Hard
Graph, Minimum Spanning Tree +1· 2 companies
1728. Cat and Mouse IIVideo
Solution40.4%Hard
Array, Dynamic Programming +6· 1 company
1761. Minimum Degree of a Connected Trio in a GraphVideo
Solution44.9%Hard
Graph· 2 companies
1778. Shortest Path in a Hidden GridVideoPremium
Solution44.5%Medium
Breadth-First Search, Depth-First Search +2· 3 companies
1782. Count Pairs Of NodesVideo
Solution43.3%Hard
Array, Binary Search +3· 1 company
1786. Number of Restricted Paths From First to Last NodeVideo
Solution41.6%Medium
Dynamic Programming, Graph +3· 1 company
1791. Find Center of Star GraphVideo
Solution86.6%Easy
Graph· 4 companies
1810. Minimum Path Cost in a Hidden GridVideoPremium
Solution58.7%Medium
Breadth-First Search, Depth-First Search +3· 2 companies
1820. Maximum Number of Accepted InvitationsVideoPremium
Solution52.4%Medium
Array, Depth-First Search +2· 2 companies
1857. Largest Color Value in a Directed GraphVideo
Solution57.3%Hard
Counting, Dynamic Programming +4· 5 companies
1916. Count Ways to Build Rooms in an Ant ColonyVideo
Solution52.4%Hard
Combinatorics, Dynamic Programming +4· 1 company
1928. Minimum Cost to Reach Destination in TimeVideo
Solution42.6%Hard
Array, Dynamic Programming +1· 6 companies
1971. Find if Path Exists in GraphVideo
Solution55.5%Easy
Breadth-First Search, Depth-First Search +2· 5 companies
1976. Number of Ways to Arrive at DestinationVideo
Solution37.4%Medium
Dynamic Programming, Graph +2· 5 companies
2039. The Time When the Network Becomes IdleVideo
Solution56.1%Medium
Array, Breadth-First Search +1· 3 companies
2045. Second Minimum Time to Reach DestinationVideo
Solution62.3%Hard
Breadth-First Search, Graph +1· 1 company
2050. Parallel Courses IIIVideo
Solution67.0%Hard
Array, Dynamic Programming +2· 9 companies
2065. Maximum Path Quality of a GraphVideo
Solution63.1%Hard
Array, Backtracking +1· 5 companies
2076. Process Restricted Friend RequestsVideo
Solution61.7%Hard
Graph, Union Find· 2 companies
2077. Paths in Maze That Lead to Same RoomVideoPremium
Solution56.7%Medium
Graph· 1 company
2092. Find All People With SecretVideo
Solution48.4%Hard
Breadth-First Search, Depth-First Search +3· 3 companies
2093. Minimum Cost to Reach City With DiscountsVideoPremium
Solution62.4%Medium
Graph, Heap (Priority Queue) +1· 2 companies
2097. Valid Arrangement of PairsVideo
–66.5%Hard
Depth-First Search, Eulerian Circuit +1· 3 companies
2101. Detonate the Maximum BombsVideo
Solution50.0%Medium
Array, Breadth-First Search +4· 7 companies
2115. Find All Possible Recipes from Given SuppliesVideo
Solution56.8%Medium
Array, Graph +3· 10 companies
2123. Minimum Operations to Remove Adjacent Ones in MatrixVideoPremium
Solution42.5%Hard
Array, Graph +1· 1 company
2127. Maximum Employees to Be Invited to a MeetingVideo
Solution61.8%Hard
Depth-First Search, Graph +1· 5 companies
2192. All Ancestors of a Node in a Directed Acyclic GraphVideo
Solution62.1%Medium
Breadth-First Search, Depth-First Search +2· 4 companies
2203. Minimum Weighted Subgraph With the Required PathsVideo
Solution43.8%Hard
Graph, Shortest Path· 1 company
2204. Distance to a Cycle in Undirected GraphVideoPremium
Solution73.4%Hard
Breadth-First Search, Depth-First Search +2· 2 companies
2242. Maximum Score of a Node SequenceVideo
Solution40.5%Hard
Array, Enumeration +2· 1 company
2246. Longest Path With Different Adjacent CharactersVideo
Solution54.2%Hard
Array, Depth-First Search +4· 5 companies
2247. Maximum Cost of Trip With K HighwaysPremium
Solution50.2%Hard
Bit Manipulation, Bitmask +2
Showing 51–100 of 190