1Minimum Number of Vertices to Reach All NodesMediumGraph Theory
Solve → 2Minimum Weighted Subgraph With the Required PathsHardGraph TheoryHeap (Priority Queue)Shortest Path
Solve → 3Parallel CoursesMediumGraph TheoryTopological Sort
Solve → 4All Paths from Source Lead to DestinationMediumGraph TheoryTopological Sort
Solve → 5Modify Graph Edge WeightsHardGraph TheoryHeap (Priority Queue)Shortest Path
Solve → 6Find Center of Star GraphEasyGraph Theory
Solve → 7Minimum Number of Vertices to Reach All NodesMediumGraph Theory
Solve → 8Find Champion IIMediumGraph Theory
Solve → 9Paths in Maze That Lead to Same RoomMediumGraph Theory
Solve → 10Minimum Cost Path with Edge ReversalsMediumGraph TheoryHeap (Priority Queue)Shortest Path
Solve → 11Minimum Weighted Subgraph With the Required PathsHardGraph TheoryHeap (Priority Queue)Shortest Path
Solve → 12Minimum Number of Vertices to Reach All NodesMediumGraph Theory
Solve → 13Parallel CoursesMediumGraph TheoryTopological Sort
Solve → 14All Paths from Source Lead to DestinationMediumGraph TheoryTopological Sort
Solve → 15Find Champion IIMediumGraph Theory
Solve → 16Minimum Cost Path with Edge ReversalsMediumGraph TheoryHeap (Priority Queue)Shortest Path
Solve → 17Paths in Maze That Lead to Same RoomMediumGraph Theory
Solve → 18Find Center of Star GraphEasyGraph Theory
Solve → 19Modify Graph Edge WeightsHardGraph TheoryHeap (Priority Queue)Shortest Path
Solve → 20Reachable Nodes In Subdivided GraphHardGraph TheoryHeap (Priority Queue)Shortest Path
Solve →