public void IsDirectedAcyclicGraphTest()
{
try
{
Graph2 glistDAG = new Graph2(9);
glistDAG.AddEdge(1, 2);
glistDAG.AddEdge(1, 4);
glistDAG.AddEdge(2, 3);
glistDAG.AddEdge(2, 7);
glistDAG.AddEdge(4, 5);
glistDAG.AddEdge(4, 6);
glistDAG.AddEdge(4, 9);
glistDAG.AddEdge(5, 8);
glistDAG.AddEdge(5, 9);
glistDAG.AddEdge(6, 7);
glistDAG.AddEdge(7, 8);
glistDAG.DisplayGraph();
Console.WriteLine("--Processing graph...\n");
glistDAG.IsDirectedAcyclicGraph();
Graph2 glistNotDAG = new Graph2(6);
glistNotDAG.AddEdge(1, 2);
glistNotDAG.AddEdge(2, 3);
glistNotDAG.AddEdge(2, 4);
glistNotDAG.AddEdge(4, 5);
glistNotDAG.AddEdge(5, 6);
glistNotDAG.AddEdge(6, 4);
glistNotDAG.AddEdge(6, 3);
glistNotDAG.DisplayGraph();
Console.WriteLine("--Processing graph...\n");
glistNotDAG.IsDirectedAcyclicGraph();
}
catch (Exception e)
{
Console.WriteLine("Cannot access empty adjacency list of a node." + e.Message);
}
}
public void FindGoodFeedbackSetTest()
{
try
{
Console.WriteLine("Find Good Feedback Vertex Set Demo");
int v = 6;
Graph2 glist = new Graph2(v);
glist.AddEdge(1, 2);
glist.AddEdge(2, 3);
glist.AddEdge(2, 4);
glist.AddEdge(4, 5);
glist.AddEdge(5, 6);
glist.AddEdge(6, 4);
glist.AddEdge(6, 3);
glist.DisplayGraph();
glist.FindGoodFeedbackSet(v, false);
Console.WriteLine("\nFind Good Feedback Edge Set Demo");
glist = new Graph2(v);
glist.AddEdge(1, 2);
glist.AddEdge(2, 3);
glist.AddEdge(2, 4);
glist.AddEdge(4, 5);
glist.AddEdge(5, 6);
glist.AddEdge(6, 4);
glist.AddEdge(6, 3);
glist.DisplayGraph();
glist.FindGoodFeedbackSet(v, true);
}
catch (Exception exception)
{
Console.WriteLine("You are trying to access empty adjacency list of a node. " + exception.Message);
}
}
