Summary: Dectect cycle in directed graph: Detect cycle in a directed graph is using aDFS. Depth First Traversal can be used to detect cycle in a Graph. DFS for a connected graph produces a tree. There is a cycle in a graph only if there is aback edgepresent in the graph. A back edg...
publicclassSolution{publicstaticvoidmain(String[] args){Solutionso=newSolution();int[][] edges = {{0,1}, {1,2}, {2,0}};booleanresult=so.hasCycleDirectedGraph(3, edges); System.out.println(result); } } Detect Cycle in Undirected Graph 无向图找环 Given n nodes labeled from 0 to n...