Esempio n. 1
0
        public void CanComputeMinPathWithDijkstraAsVertexList()
        {
            var scanner = new Scanner(CreateStream(
                                          "8 9\n1 2\n1 3\n2 4\n2 5\n3 6\n3 7\n1 6\n5 8\n6 8"
                                          ));

            var g = Graph.AsVertexList(scanner, directed: false);

            g = Graph.ConstantWeights(g, 1);

            var minPath = GraphTraversal.Dijkstra(g, g[0]);

            Assert.True(minPath.Item1.Length == g.Length);
            Assert.True(minPath.Item2.Length <= g.Length);

            Assert.True(minPath.Item1[0] == 0);
            Assert.True(minPath.Item1[1] == 1);
            Assert.True(minPath.Item1[2] == 1);
            Assert.True(minPath.Item1[3] == 2);
            Assert.True(minPath.Item1[4] == 2);
            Assert.True(minPath.Item1[5] == 1);
            Assert.True(minPath.Item1[6] == 2);
            Assert.True(minPath.Item1[7] == 2);
        }
Esempio n. 2
0
        static void Main(string[] args)
        {
            //Trees and Graph Algorithms
            BinarySearchTree.Test(10);
            GraphSearch.Test();

            //Test data
            int[] data     = Helper.Generate(10, 1000);
            int[] heapData = new int[] { 12, 11, 13, 5, 6, 7 };

            //Sorting Algorithms
            int[] bubbleSort    = Sort.BubbleSort(data);
            int[] selectionSort = Sort.SelectionSort(data);
            int[] insertionSort = Sort.InsertionSort(data);
            int[] mergeSort     = Sort.MergeSort(data);
            int[] quickSort     = Sort.QuickSort(data, 0, data.Length / 2);
            int[] heapSort      = Sort.HeapSort(heapData);

            //Searching Algorithms
            int value                 = mergeSort[mergeSort.Length / 2];
            int binarySearch          = Search.BinarySearch(mergeSort, value);
            int binarySearchRecursive = Search.BinarySearchRecursive(mergeSort, value, 0, mergeSort.Length - 1);

            int[,] dGraph =
            {
                { 0,  6, 0,  0,  0,  0, 0,  9, 0 },
                { 6,  0, 9,  0,  0,  0, 0, 11, 0 },
                { 0,  9, 0,  5,  0,  6, 0,  0, 2 },
                { 0,  0, 5,  0,  9, 16, 0,  0, 0 },
                { 0,  0, 0,  9,  0, 10, 0,  0, 0 },
                { 0,  0, 6,  0, 10,  0, 2,  0, 0 },
                { 0,  0, 0, 16,  0,  2, 0,  1, 6 },
                { 9, 11, 0,  0,  0,  0, 1,  0, 5 },
                { 0,  0, 2,  0,  0,  0, 6,  5, 0 }
            };

            GraphTraversal.Dijkstra(dGraph, 0, 9);


            int[, ] pGraph = new int[, ] {
                { 0, 2, 0, 6, 0 },
                { 2, 0, 3, 8, 5 },
                { 0, 3, 0, 0, 7 },
                { 6, 8, 0, 0, 9 },
                { 0, 5, 7, 9, 0 }
            };

            GraphTraversal.PrimMST(pGraph, 5);


            //Word Sorter
            BinaryTree <string> tree = new BinaryTree <string>();
            string input             = string.Empty;

            while (!input.Equals("quit", StringComparison.CurrentCultureIgnoreCase))
            {
                //read the line from the user
                Console.Write("> ");
                input = Console.ReadLine();
                //split the line into words (on space)
                string[] words = input.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries);

                //add each word to the tree

                foreach (string word in words)
                {
                    tree.Add(word);
                }

                //print the number of words
                Console.WriteLine("{0} words", tree.Count);

                //add print each word using the default (in-order enumerator)
                foreach (string word in tree)
                {
                    Console.Write("{0} ", word);
                }

                Console.WriteLine();

                tree.Clear();
            }
        }