Exemple #1
0
        public void ContectedCompoentTest()
        {
            using (StreamReader sr = new StreamReader(@"E:\Study\ALG2017\ALGRKC\dataSelf\tinyG.txt"))
            {
                Graph g = new Graph(sr);

                CC c = new CC(g);

                int           count   = c.Count();
                Queue <int>[] ccQueue = new Queue <int> [count];
                for (int i = 0; i < count; i++)
                {
                    ccQueue[i] = new Queue <int>();
                }

                for (int i = 0; i < g.V(); i++)
                {
                    ccQueue[c.id(i)].Enqueue(i);
                }

                int current;
                for (int i = 0; i < count; i++)
                {
                    Console.Write("CC " + i + " : ");
                    while (ccQueue[i].Count > 1)
                    {
                        current = ccQueue[i].Dequeue();
                        Console.Write(current + ", ");
                    }
                    current = ccQueue[i].Dequeue();
                    Console.WriteLine(current); // wrtie the last one in the current set
                }
            }
        }
Exemple #2
0
    void Start()
    {
        Graph G  = new Graph(txt);
        CC    cc = new CC(G);

        // number of connected components
        int m = cc.Count();

        print(m + " components");

        List <Bag <int> > components = cc.bagList;

        for (int i = 0; i < m; i++)
        {
            string str = null;
            foreach (int v in components[i])
            {
                str += (v + " ");
            }
            print(str);
        }
    }
Exemple #3
0
        public void Run()
        {
            Console.WriteLine("Choose file:");    // Prompt
            Console.WriteLine("1 - tinyG.txt");   // Prompt
            Console.WriteLine("2 - mediumG.txt"); // Prompt
            //Console.WriteLine("3 - largeG.zip"); // Prompt
            Console.WriteLine("or quit");         // Prompt

            var fileNumber = Console.ReadLine();
            var fieName    = string.Empty;

            switch (fileNumber)
            {
            case "1":
                fieName = "tinyG.txt";
                break;

            case "2":
                fieName = "mediumG.txt";
                break;

            //case "3":
            //    fieName = "largeG.zip";
            //    break;
            case "quit":
                return;

            default:
                return;
            }


            var @in   = new In($"Files\\Graphs\\{fieName}");
            var lines = !fieName.EndsWith("zip") ? @in.ReadAllLines() : @in.ReadAllLinesFromZip();

            var lineIterator = 0;
            var v            = 0;
            var e            = 0;
            var edges        = new List <EdgeU>();

            foreach (var line in lines)
            {
                if (lineIterator == 0)
                {
                    v = Convert.ToInt32(line);
                }
                if (lineIterator == 1)
                {
                    e = Convert.ToInt32(line);
                }
                if (lineIterator > 1)
                {
                    var lineSplitted = line.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
                    var ve           = Convert.ToInt32(lineSplitted[0]);
                    var we           = Convert.ToInt32(lineSplitted[1]);
                    var edge         = new EdgeU(ve, we);
                    edges.Add(edge);
                }

                lineIterator++;
            }

            var graph = new Graph(v, e, edges);

            if (fileNumber != "3")
            {
                Console.WriteLine(graph);
            }

            var cc = new CC(graph);

            // number of connected components
            var m = cc.Count();

            Console.WriteLine($"{m} components");

            // compute list of vertices in each connected component
            var components = new Core.Collections.Queue <Integer> [m];

            for (var i = 0; i < m; i++)
            {
                components[i] = new Core.Collections.Queue <Integer>();
            }
            for (var vi = 0; vi < graph.V; vi++)
            {
                components[cc.Id(vi)].Enqueue(vi);
            }

            // print results
            for (var i = 0; i < m; i++)
            {
                foreach (int vi in components[i])
                {
                    Console.Write($"{vi} ");
                }
                Console.WriteLine();
            }

            Console.ReadLine();
        }