public static void MainTest(string[] args)
{
// create random DAG with V vertices and E edges; then add F random edges
int V = int.Parse(args[0]);
int E = int.Parse(args[1]);
int F = int.Parse(args[2]);
Digraph G = DigraphGenerator.Dag(V, E);
// add F extra edges
for (int i = 0; i < F; i++)
{
int v = StdRandom.Uniform(V);
int w = StdRandom.Uniform(V);
G.AddEdge(v, w);
}
Console.WriteLine(G);
DirectedCycleX finder = new DirectedCycleX(G);
if (finder.HasCycle)
{
Console.Write("Directed cycle: ");
foreach (int v in finder.GetCycle())
{
Console.Write(v + " ");
}
Console.WriteLine();
}
else
{
Console.WriteLine("No directed cycle");
}
Console.WriteLine();
}
public static void MainTest(string[] args)
{
int V = int.Parse(args[0]);
int E = int.Parse(args[1]);
Console.WriteLine("Complete graph");
Console.WriteLine(DigraphGenerator.Complete(V));
Console.WriteLine();
Console.WriteLine("Simple");
Console.WriteLine(DigraphGenerator.Simple(V, E));
Console.WriteLine();
Console.WriteLine("Path");
Console.WriteLine(DigraphGenerator.Path(V));
Console.WriteLine();
Console.WriteLine("Cycle");
Console.WriteLine(DigraphGenerator.Cycle(V));
Console.WriteLine();
Console.WriteLine("Eulierian path");
Console.WriteLine(DigraphGenerator.EulerianPath(V, E));
Console.WriteLine();
Console.WriteLine("Eulierian cycle");
Console.WriteLine(DigraphGenerator.EulerianCycle(V, E));
Console.WriteLine();
Console.WriteLine("Binary tree");
Console.WriteLine(DigraphGenerator.BinaryTree(V));
Console.WriteLine();
Console.WriteLine("Tournament");
Console.WriteLine(DigraphGenerator.Tournament(V));
Console.WriteLine();
Console.WriteLine("DAG");
Console.WriteLine(DigraphGenerator.Dag(V, E));
Console.WriteLine();
Console.WriteLine("Rooted-in DAG");
Console.WriteLine(DigraphGenerator.RootedInDAG(V, E));
Console.WriteLine();
Console.WriteLine("Rooted-out DAG");
Console.WriteLine(DigraphGenerator.RootedOutDAG(V, E));
Console.WriteLine();
Console.WriteLine("Rooted-in tree");
Console.WriteLine(DigraphGenerator.RootedInTree(V));
Console.WriteLine();
Console.WriteLine("Rooted-out DAG");
Console.WriteLine(DigraphGenerator.RootedOutTree(V));
Console.WriteLine();
}
public static void MainTest(string[] args)
{
int V = int.Parse(args[0]);
int E = int.Parse(args[1]);
// Eulerian cycle
Digraph G1 = DigraphGenerator.EulerianCycle(V, E);
DirectedEulerianPath.UnitTest(G1, "Eulerian cycle");
// Eulerian path
Digraph G2 = DigraphGenerator.EulerianPath(V, E);
DirectedEulerianPath.UnitTest(G2, "Eulerian path");
// add one random edge
Digraph G3 = new Digraph(G2);
G3.AddEdge(StdRandom.Uniform(V), StdRandom.Uniform(V));
DirectedEulerianPath.UnitTest(G3, "one random edge added to Eulerian path");
// self loop
Digraph G4 = new Digraph(V);
int v4 = StdRandom.Uniform(V);
G4.AddEdge(v4, v4);
DirectedEulerianPath.UnitTest(G4, "single self loop");
// single edge
Digraph G5 = new Digraph(V);
G5.AddEdge(StdRandom.Uniform(V), StdRandom.Uniform(V));
DirectedEulerianPath.UnitTest(G5, "single edge");
// empty digraph
Digraph G6 = new Digraph(V);
DirectedEulerianPath.UnitTest(G6, "empty digraph");
// random digraph
Digraph G7 = DigraphGenerator.Simple(V, E);
DirectedEulerianPath.UnitTest(G7, "simple digraph");
// 4-vertex digraph
//Digraph G8 = new Digraph(new TextInput("eulerianD.txt"));
//DirectedEulerianPath.UnitTest(G8, "4-vertex Eulerian digraph");
}
public static void MainTest(string[] args)
{
int V = int.Parse(args[0]);
int E = int.Parse(args[1]);
// Eulerian cycle
Digraph G1 = DigraphGenerator.EulerianCycle(V, E);
DirectedEulerianCycle.UnitTest(G1, "Eulerian cycle");
// Eulerian path
Digraph G2 = DigraphGenerator.EulerianPath(V, E);
DirectedEulerianCycle.UnitTest(G2, "Eulerian path");
// empty digraph
Digraph G3 = new Digraph(V);
DirectedEulerianCycle.UnitTest(G3, "empty digraph");
// self loop
Digraph G4 = new Digraph(V);
int v4 = StdRandom.Uniform(V);
G4.AddEdge(v4, v4);
DirectedEulerianCycle.UnitTest(G4, "single self loop");
// union of two disjoint cycles
Digraph H1 = DigraphGenerator.EulerianCycle(V / 2, E / 2);
Digraph H2 = DigraphGenerator.EulerianCycle(V - V / 2, E - E / 2);
int[] perm = new int[V];
for (int i = 0; i < V; i++)
{
perm[i] = i;
}
StdRandom.Shuffle(perm);
Digraph G5 = new Digraph(V);
for (int v = 0; v < H1.V; v++)
{
foreach (int w in H1.Adj(v))
{
G5.AddEdge(perm[v], perm[w]);
}
}
for (int v = 0; v < H2.V; v++)
{
foreach (int w in H2.Adj(v))
{
G5.AddEdge(perm[V / 2 + v], perm[V / 2 + w]);
}
}
DirectedEulerianCycle.UnitTest(G5, "Union of two disjoint cycles");
// random digraph
Digraph G6 = DigraphGenerator.Simple(V, E);
DirectedEulerianCycle.UnitTest(G6, "simple digraph");
// 4-vertex digraph - no data file
//Digraph G7 = new Digraph(new TextInput("eulerianD.txt"));
//DirectedEulerianCycle.UnitTest(G7, "4-vertex Eulerian digraph");
}