public DirectedBFS(DiGraph graph,int v)
{
this.v = v;
this.graph = graph;
edgeTo = Enumerable.Repeat(-1, graph.V()).ToArray<int>();
visited = new bool[graph.V()];
distTo = new int[graph.V()];
breadthFirstSearch (v);
}
public TopologicalSort(DiGraph graph)
{
this.graph = graph;
stack = new Stack<int> ();
visited = new bool[graph.V ()];
for (int i = 0; i < graph.V(); i++) {
if (!visited[i]) {
depthFirstSearch (i);
}
}
}