コード例 #1
0
        static void Main(string[] args)
        {
            Graph <int> graph = new Graph <int>(true, true);

            Node <int> n1 = graph.AddNode(1);
            Node <int> n2 = graph.AddNode(2);
            Node <int> n3 = graph.AddNode(3);
            Node <int> n4 = graph.AddNode(4);
            Node <int> n5 = graph.AddNode(5);
            Node <int> n6 = graph.AddNode(6);
            Node <int> n7 = graph.AddNode(7);
            Node <int> n8 = graph.AddNode(8);

            graph.AddEdge(n1, n2, 9);
            graph.AddEdge(n1, n3, 5);
            graph.AddEdge(n2, n1, 3);
            graph.AddEdge(n2, n4, 18);
            graph.AddEdge(n3, n4, 12);
            graph.AddEdge(n4, n2, 2);
            graph.AddEdge(n4, n8, 8);
            graph.AddEdge(n5, n4, 9);
            graph.AddEdge(n5, n6, 2);
            graph.AddEdge(n5, n7, 5);
            graph.AddEdge(n5, n8, 3);
            graph.AddEdge(n6, n7, 1);
            graph.AddEdge(n7, n5, 4);
            graph.AddEdge(n7, n8, 6);
            graph.AddEdge(n8, n5, 3);

            //BFS<int> bfs = new BFS<int>();
            //List<Node<int>> bfsNodes = bfs.Search(graph);
            //bfsNodes.ForEach(x => Console.WriteLine(x));

            DFS <int>          dfs      = new DFS <int>();
            List <Node <int> > dfsNodes = dfs.Search(graph);

            dfsNodes.ForEach(x => Console.WriteLine(x));
        }
コード例 #2
0
        static void Main(string[] args)
        {
            List <int> unsortedMS = new List <int>();
            List <int> sorted;

            Random random = new Random();

            Console.WriteLine("MergeSort");
            Console.WriteLine("Unsorted Array: ");
            for (int i = 0; i < 20; i++)
            {
                unsortedMS.Add(random.Next(0, 100));
                Console.Write(unsortedMS[i] + " ");
            }
            Console.WriteLine();

            sorted = MergeSort(unsortedMS);

            Console.WriteLine("Sorted Array: ");

            foreach (int x in sorted)
            {
                Console.Write(x + " ");
            }
            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("QuickSort");
            List <int> unsortedQS = new List <int>();

            Console.WriteLine("Unsorted Array: ");

            for (int i = 0; i < 20; i++)
            {
                unsortedQS.Add(random.Next(0, 100));
                Console.Write(unsortedQS[i] + " ");
            }
            Console.WriteLine();

            Console.WriteLine("Sorted Array: ");

            QuickSort(unsortedQS, 0, unsortedQS.Count() - 1);

            foreach (int x in unsortedQS)
            {
                Console.Write(x + " ");
            }

            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("Binary Search - Iterative");

            List <int> array = new List <int> {
                1, 3, 5, 7, 9, 13, 16, 17, 18, 20, 24, 27, 30, 33, 36, 39, 44, 46
            };

            foreach (int x in array)
            {
                Console.Write(x + " ");
            }
            Console.Write("\n");
            Console.Write("Searching for 3:\n");
            Console.WriteLine(BinarySearch(array, 3));
            Console.Write("\n");
            Console.Write("Searching for 46:\n");
            Console.WriteLine(BinarySearch(array, 46));
            Console.Write("\n");
            Console.Write("Searching for 2:\n");
            Console.WriteLine(BinarySearch(array, 2));
            Console.WriteLine();
            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("SelectionSort");
            Console.WriteLine("Unsorted Array: ");
            List <int> unsortedSS = new List <int>();

            for (int i = 0; i < 20; i++)
            {
                unsortedSS.Add(random.Next(0, 100));
                Console.Write(unsortedSS[i] + " ");
            }
            Console.WriteLine();
            SelectionSort(unsortedSS);
            Console.WriteLine("Sorted Array: ");

            foreach (int x in unsortedSS)
            {
                Console.Write(x + " ");
            }
            Console.WriteLine();
            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("Factorial 20");

            Console.WriteLine(Factorial(20));
            Console.WriteLine(FibonacciRecursive(9));
            Console.WriteLine(FibonacciDynamic(9));
            Console.WriteLine(FibonacciSpaceOptimized(9));

            Console.WriteLine();
            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("Adding Villagers to Dictionary...");

            Dictionary <string, string> villagers = new Dictionary <string, string>();

            villagers.Add("squirrel", "Hazel");
            villagers.Add("eagle", "Keaton");
            villagers.Add("duck", "Drake");
            villagers.Add("bird", "Piper");
            villagers.Add("cat", "Kiki");
            villagers.Add("hamster", "Flurry");
            villagers.Add("goat", "Velma");
            villagers.Add("hippo", "Harry");
            villagers.Add("ostrich", "Sandy");

            foreach (KeyValuePair <string, string> kvp in villagers)
            {
                Console.WriteLine("Key = {0}, Value = {1}", kvp.Key, kvp.Value);
            }

            Console.WriteLine("Removing Sandy...");

            villagers.Remove("ostrich");

            if (!villagers.ContainsKey("ostrich"))
            {
                Console.WriteLine("No Ostriches here... Sandy is gone");
            }

            if (villagers.ContainsKey("squirrel"))
            {
                Console.WriteLine("Whew, Hazel is still here!");
            }

            // Does a string have all unique characters?

            string test  = new string("abcdefg");
            string test2 = new string("xnadiax");

            Console.WriteLine("Checking does string have unique chars");
            Console.WriteLine(DoesStringHaveUniqueChars(test));
            Console.WriteLine(DoesStringHaveUniqueChars(test2));

            Console.WriteLine("Checking  it one string is a permutation of another");
            Console.WriteLine(CheckPermutations("abc", "abd"));
            Console.WriteLine(CheckPermutations("abc", "abcd"));
            Console.WriteLine(CheckPermutations("abc", "bac"));

            Console.WriteLine("URLIfy a string");

            Console.WriteLine("URLify:  Me and Mrs Jones");
            string teststring = URLIfy("Me and Mrs Jones");

            Console.WriteLine(teststring);

            Console.WriteLine(HasPallindromePermutation("taco cat"));
            Console.WriteLine(HasPallindromePermutation("taco cats"));


            LinkedList <int> linkedInts = new LinkedList <int>();

            linkedInts.AddLast(1);
            linkedInts.AddLast(5);
            linkedInts.AddLast(7);
            linkedInts.AddLast(3);

            foreach (int num in linkedInts)
            {
                Console.WriteLine(num);
            }

            LinkedListNode <int> LinkedListNode = linkedInts.First;

            Console.WriteLine(LinkedListNode.Next.Value);

            LinkedListNode LinkedListNode1 = new LinkedListNode(9);

            LinkedListNode1.AppendToTail(11);
            LinkedListNode1.AppendToTail(13);

            LinkedListNode n = LinkedListNode1;

            while (n != null)
            {
                Console.WriteLine(n.data);
                n = n.next;
            }

            LinkedListNode n1 = LinkedListNode1.DeleteNode(LinkedListNode1, 11);

            Console.Write("\n-------------------------------------------------------------------\n");
            TraverseList(LinkedListNode1);
            Console.Write("\n-------------------------------------------------------------------\n");
            for (int i = 1; i < 21; i++)
            {
                int num = random.Next(1, 100);
                LinkedListNode1.AppendToTail(num);
            }
            TraverseList(LinkedListNode1);
            Console.Write("\n-------------------------------------------------------------------\n");

            int[] nums = { 1, 1, 2, 2, 3, 4, 5, 6, 7, 8, 8, 9, 10 };

            //LinkedList<int> dupeList = new LinkedList<int>(nums);
            LinkedListNode dupeList = new LinkedListNode(1);

            for (int i = 1; i <= 10; i++)
            {
                if (i % 2 == 0)
                {
                    dupeList.AppendToTail(i);
                    dupeList.AppendToTail(i);
                }
                else
                {
                    dupeList.AppendToTail(i);
                }
            }

            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("Linked List With Duplicates");

            TraverseList(dupeList);
            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("Delete Duplicates");
            DeleteDuplicates(dupeList);
            TraverseList(dupeList);
            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("removing 2nd from Last");
            RemoveKthFromLast(dupeList, 2);
            TraverseList(dupeList);
            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("Stack");

            MyStack stack = new MyStack();

            stack.Push(3);
            stack.Push(5);
            stack.Push(7);
            stack.Push(9);
            stack.Push(11);

            while (!stack.IsEmpty())
            {
                Console.WriteLine(stack.Pop());
            }
            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("Queue");

            MyQueue queue = new MyQueue();

            queue.Add(2);
            queue.Add(4);
            queue.Add(6);
            queue.Add(8);
            queue.Add(10);

            while (!queue.IsEmpty())
            {
                Console.WriteLine(queue.Remove());
            }

            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("Trees");
            TreeNode tree = new TreeNode(8);

            tree.Insert(4);
            tree.Insert(10);
            tree.Insert(2);
            tree.Insert(6);
            tree.Insert(20);

            Console.WriteLine(tree.Contains(1));
            Console.WriteLine(tree.Contains(20));
            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("PreOrder Traversal");
            tree.PreOrderTraversal();

            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("InOrder Traversal");
            tree.InOrderTraversal();

            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("PostOrder Traversal");
            tree.PostOrderTraversal();

            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("Graph  Path ");

            Graph graph = new Graph();

            /*
             *               1
             *             / | \
             *            2  5  9
             *           /  / \   \
             *          3  6   8   10
             *         /  /
             *        4  7
             *
             */

            for (int i = 1; i <= 10; i++)
            {
                graph.AddNode(i);
            }

            graph.AddEdge(1, 2);
            graph.AddEdge(2, 3);
            graph.AddEdge(3, 4);
            graph.AddEdge(1, 5);
            graph.AddEdge(5, 6);
            graph.AddEdge(6, 7);
            graph.AddEdge(5, 8);
            graph.AddEdge(1, 9);
            graph.AddEdge(9, 10);
            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("Graph  Path DFS");


            Console.WriteLine(graph.HasPathDFS(1, 7));
            Console.WriteLine(graph.HasPathDFS(6, 10));


            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("Graph  Path  BFS");

            Console.WriteLine(graph.HasPathBFS(1, 7));
            Console.WriteLine(graph.HasPathBFS(6, 10));
            Console.Write("\n-------------------------------------------------------------------\n");
            Console.WriteLine("Base62");
            string str = Base62Converter.Encode(999999999);;

            Console.WriteLine(str);
            Console.WriteLine(Base62Converter.Decode(str));

            Console.Write("\n-------------------------------------------------------------------\n");
        }