public static void Main(string[] args)
{
Console.OutputEncoding = Encoding.UTF8;
BinarySearchTree <int> tree = new BinarySearchTree <int>();
tree.Root = new BinaryTreeNode <int>()
{
Data = 100
};
tree.Root.Left = new BinaryTreeNode <int>()
{
Data = 50, Parent = tree.Root
};
tree.Root.Right = new BinaryTreeNode <int>()
{
Data = 150, Parent = tree.Root
};
tree.Count = 3;
VisualizeTree(tree, "The BST with three nodes (50, 100, 150):");
tree.Add(75);
tree.Add(125);
VisualizeTree(tree, "The BST after adding two nodes (75, 125):");
tree.Add(25);
tree.Add(175);
tree.Add(90);
tree.Add(110);
tree.Add(135);
VisualizeTree(tree, "The BST after adding five nodes (25, 175, 90, 110, 135):");
tree.Remove(25);
VisualizeTree(tree, "The BST after removing the node 25:");
tree.Remove(50);
VisualizeTree(tree, "The BST after removing the node 50:");
tree.Remove(100);
VisualizeTree(tree, "The BST after removing the node 100:");
Console.Write("Pre-order traversal:\t");
Console.Write(string.Join(", ", tree.Traverse(TraversalEnum.PREORDER).Select(n => n.Data)));
Console.Write("\nIn-order traversal:\t");
Console.Write(string.Join(", ", tree.Traverse(TraversalEnum.INORDER).Select(n => n.Data)));
Console.Write("\nPost-order traversal:\t");
Console.Write(string.Join(", ", tree.Traverse(TraversalEnum.POSTORDER).Select(n => n.Data)));
tree.Remove(90);
VisualizeTree(tree, "---");
tree.Remove(75);
VisualizeTree(tree, "---");
tree.Remove(125);
VisualizeTree(tree, "---");
tree.Remove(110);
VisualizeTree(tree, "---");
tree.Remove(175);
VisualizeTree(tree, "---");
tree.Remove(135);
VisualizeTree(tree, "---");
tree.Remove(150);
VisualizeTree(tree, "---");
Console.ReadLine();
}