static void Main(string[] args)
        {
            AlienDictionary ad = new AlienDictionary();

            string[] words = new string[]
            { "wrt", "wrf", "er", "ett", "rftt" };
            string order = ad.AlienOrder(words);



            bool TESTING_UDIRECTED_GRAPH = true;

            if (TESTING_UDIRECTED_GRAPH)
            {
                UndirectedGraph g = new UndirectedGraph();
                //string path = @"C:\Code\Graphs\ConsoleApplication1\ConsoleApplication1\Inputs\UndirectedGraphWithCycle.txt";
                string path = @"C:\Code\Graphs\ConsoleApplication1\ConsoleApplication1\DjikstrasUndirectedInput.txt";



                g.ConstructGraph(path);

                //Traversals:
                // g.BreadthFirstTraversal();

                // g.DepthFirstTraversal();

                // Cycle Detection


                //g.PrintGraph();
                //g.ConstructGraph(@"C:\Code\Graphs\ConsoleApplication1\ConsoleApplication1\DjikstrasUndirectedInput.txt");

                //bool hasCycle = g.HasCycle();
                //Console.WriteLine(hasCycle);
                //g.PrintGraph();
                // g.DijkstraAlgorithm(0);

                int[,] array = new int[, ]
                {
                    { 1, 1, 1, 1, 1 },
                    { 1, 1, 1, 1, 1 },
                    { 1, 1, 1, 1, 1 },
                    { 1, 1, 1, 0, 0 },
                    { 1, 1, 1, 0, 1 }
                };

                int numberOfIslands = g.NumberOfIslands(array);
                Console.WriteLine(numberOfIslands);
            }

            else
            {
                DirectedGraph directedgraph = new DirectedGraph();
                string        path1         = @"C:\Code\Graphs\ConsoleApplication1\ConsoleApplication1\Inputs\BellmanFord.txt";
                directedgraph.ConstructGraph(path1);
                // directedgraph.PrintGraph();

                //directedgraph.BreadthFirstTraversal();
                //directedgraph.DepthFirstTraversal();
                //bool hasCycle = directedgraph.DetectCycle();
                //Console.WriteLine(hasCycle);

                //Cycle Detection
                //int cycles = directedgraph.DetectCycles2();
                //Console.WriteLine("No of cycles :" + cycles);
                //int scc = directedgraph.KosarajuSCC();
                //Console.WriteLine("Number of connected components is " + scc);

                //directedgraph.GetArticulationPoints();

                //directedgraph.TarjanScc();

                directedgraph.BellmanFord();
            }


            Console.ReadLine();
        }
Example #2
0
        static void Main(string[] args)
        {
            UnderictedGraph <int> graph = new UnderictedGraph <int>();
            Vertex <int>          a     = new Vertex <int>(1);
            Vertex <int>          b     = new Vertex <int>(2);
            Vertex <int>          c     = new Vertex <int>(3);
            Vertex <int>          d     = new Vertex <int>(4);
            Vertex <int>          e     = new Vertex <int>(5);
            Vertex <int>          f     = new Vertex <int>(6);

            graph.AddVertex(a);
            graph.AddVertex(b);
            graph.AddVertex(c);
            graph.AddVertex(d);
            graph.AddVertex(e);
            graph.AddVertex(f);
            graph.AddEdge(a, b);
            graph.AddEdge(a, c);
            graph.AddEdge(a, d);
            graph.AddEdge(b, e);
            graph.AddEdge(b, f);
            graph.AddEdge(c, e);
            graph.AddEdge(c, f);
            //graph.DepthFirstTraversal(a);

            //for(int i = 0; i < graph.dft.Count; i++)
            //{
            //    Console.Write(graph.dft[i].Value);
            //}

            //graph.BreadthFirstTraversal(a);
            //for (int i = 0; i < graph.bft.Count; i++)
            //{
            //    Console.Write($"{graph.bft[i].Value} ");
            //}
            //Console.WriteLine();
            //graph.RemoveVertex(c);

            //graph.BreadthFirstTraversal(a);
            //for (int i = 0; i < graph.bft.Count; i++)
            //{
            //    Console.WriteLine($"{graph.bft[i].Value} ");
            //}



            DirectedGraph <int> dgraph = new DirectedGraph <int>();
            Vertex <int>        g      = new Vertex <int>(1);
            Vertex <int>        h      = new Vertex <int>(2);
            Vertex <int>        ii     = new Vertex <int>(3);
            Vertex <int>        j      = new Vertex <int>(4);
            Vertex <int>        k      = new Vertex <int>(5);
            Vertex <int>        l      = new Vertex <int>(6);

            dgraph.AddVertex(g);
            dgraph.AddVertex(h);
            dgraph.AddVertex(ii);
            dgraph.AddVertex(j);
            dgraph.AddVertex(k);
            dgraph.AddVertex(l);
            dgraph.AddEdge(g, h, 5);
            dgraph.AddEdge(h, g, 6);
            dgraph.AddEdge(g, ii, 3);
            dgraph.AddEdge(g, j, 2);
            dgraph.AddEdge(h, k, 7);
            dgraph.AddEdge(h, l, 1);
            dgraph.AddEdge(ii, k, 2);
            dgraph.AddEdge(ii, l, 3);

            //dgraph.DepthFirstTraversal(h);
            //for (int i = 0; i < dgraph.dft.Count; i++)
            //{
            //    Console.Write($"{dgraph.dft[i].Value} ");
            //}
            //Console.WriteLine();
            //Console.WriteLine(dgraph.Dft + "\n");

            //dgraph.BreadthFirstTraversal(h);
            //for (int i = 0; i < dgraph.bft.Count; i++)
            //{
            //    Console.Write($"{dgraph.bft[i].Value} ");
            //}
            //Console.WriteLine();
            //Console.WriteLine(dgraph.Bft);

            dgraph.Dijkstra(h);
            Console.ReadKey();
        }