static void Main(string[] args)
{
int[,] edges = new int[, ] {
{ 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 }, { 4, 5 }, { 5, 6 }, { 6, 3 }, { 6, 0 }, { 6, 1 }, { 1, 3 }
};
int[] weights = new int[10] {
1, 2, 1, 3, 2, 2, 1, 3, 3, 4
};
IGraph graph = new GraphAdjacencyList(7);
for (int i = 0; i < 10; i++)
{
graph.AddEdge(graph.GetVertex(edges[i, 0]), graph.GetVertex(edges[i, 1]), weights[i]);
}
// IGraph sceleton = GraphWorker.Prim(graph);
// sceleton.Edges().ForEach(edge =>
// {
// Console.Out.WriteLine(edge.ToString());
// });
GraphProps graphProps = GraphWorker.WaveAlgorithm(graph, graph.GetVertex(0));
Console.Out.WriteLine(graphProps);
graph.Vertices().ForEach(vertex =>
{
Console.Out.WriteLine(vertex.ToString());
});
}
public static GraphProps WaveAlgorithm(IGraph graph, Vertex start)
{
graph.Vertices().ForEach(vertex => { vertex.Colour = 0; });
Queue <Vertex> queue = new Queue <Vertex>();
queue.Enqueue(start);
GraphProps graphProps = new GraphProps();
start.Colour = 1;
while (queue.Count > 0)
{
Vertex temp = queue.Dequeue();
List <Vertex> surrounding = graph.Surrounding(temp);
surrounding.ForEach(vertex =>
{
if (vertex.Colour == 0)
{
vertex.Colour = temp.Colour + 1;
queue.Enqueue(vertex);
vertex.ComeFrom = temp;
}
else if (vertex.Colour % 2 == temp.Colour % 2)
{
graphProps.IsBipartite = false;
}
});
}
graphProps.IsConnected = true;
foreach (var vertex in graph.Vertices())
{
if (vertex.Colour == 0)
{
graphProps.IsConnected = false;
break;
}
}
return(graphProps);
}