// various Tree Traversals demo
// by Sam Klok (Serge Klokov)
//
// c# implementation of operations with binary tree
// and with ..
//
// find lowest common ancestor of
// n1 and n2 using one traversal of binary tree
// It also handles cases even when n1 and n2 are not there in Tree
//
// 1
// 2 3
// 4 5 6 7
//
static void Main(string[] args)
{
// populate tree
var bTreee = new BinaryTree();
PopulateBinaryTreeWithValues(bTreee);
bTreee.Print(bTreee.root);
Console.WriteLine("Max depth of a tree: " + bTreee.maxDepth(bTreee.root));
Console.WriteLine();
Console.WriteLine("Lowest Common Ancestor - LCA");
Node lca = bTreee.findLCA(6, 7);
if (lca != null)
{
Console.WriteLine("LCA(6,7) = " + lca.item);
Console.WriteLine("Max depth of node {0} = {1}", lca.item, bTreee.maxDepth(lca));
}
else
{
Console.WriteLine("LCA(4,5) not present");
}
Console.WriteLine();
lca = bTreee.findLCA(4, 5);
if (lca != null)
{
Console.WriteLine("LCA(4,5) = " + lca.item);
Console.WriteLine("Max depth of node {0} = {1}", lca.item, bTreee.maxDepth(lca));
}
else
{
Console.WriteLine("LCA(4,5) not present");
}
Console.WriteLine();
lca = bTreee.findLCA(4, 10);
if (lca != null)
{
Console.WriteLine("LCA(4,10) = " + lca.item);
}
else
{
Console.WriteLine("LCA(4,10) not present");
}
Console.WriteLine();
Console.WriteLine("Print inorder");
bTreee.PrintInorder(bTreee.root);
Console.WriteLine(System.Environment.NewLine);
Console.WriteLine("Print postorder");
bTreee.PrintPostorder(bTreee.root);
Console.WriteLine(System.Environment.NewLine);
var dll = new DoubleLinkedList();
PopulateDoubleLinkedListWValues(dll);
Console.Write("Simple Doubly Linked List: ");
dll.Print(dll.root);
Console.WriteLine();
Console.WriteLine("Print Binary Tree converted (Inorder) to Double Linked List");
var dll2 = new DoubleLinkedList();
bTreee.ConvertBTreeToDllInorder(bTreee.root, dll2);
dll2.Print(dll2.root);
Console.WriteLine("Press any key..");
Console.ReadKey();
}