public Node(double key, int level, int number)
{
Key = key;
Level = level;
Number = number;
Left = Right = null;
}
public BinarySearchTree()
{
Root = null;
}
private void pre_order_traversal(ref Node node)
{
if (node != null && node.Left == null && node.Right == null)
node.Key++;
if (node.Left != null)
pre_order_traversal(ref node.Left);
if (node.Right != null)
pre_order_traversal(ref node.Right);
}
private void simple_add(ref Node node, double key, int level, int number)
{
if (node != null)
{
if (node.Key > key)
simple_add(ref node.Left, key, level + 1, 2 * number + 1);
else
simple_add(ref node.Right, key, level + 1, 2 * number + 2);
}
else
node = new Node(key, level, number);
}
private void post_order_traversal(ref Node node)
{
if (node.Left != null)
post_order_traversal(ref node.Left);
if (node.Right != null)
post_order_traversal(ref node.Right);
if (node.Key < 0)
node.Key = 0;
}
private void in_order_traversal(ref Node node)
{
if (node.Left != null)
in_order_traversal(ref node.Left);
if (node.Key % 2 == 0)
node.Key *= 2;
if (node.Right != null)
in_order_traversal(ref node.Right);
}
private bool do_find(Node node, double key)
{
if (node.Key == key)
return true;
else if (node.Key < key && node.Right != null)
return do_find(node.Right, key);
else if (node.Key > key && node.Left != null)
return do_find(node.Left, key);
else
return false;
}
private string dfs(Node node, int level)
{
if (node != null)
return dfs(node.Right, level + 1) + new String(' ', 4 * level) + node.ToString() + "\n" + dfs(node.Left, level + 1);
else
return "";
}
public void ReadFromFile()
{
var formatter = new BinaryFormatter();
using (var stream = File.Open("tree.bin", FileMode.Open))
{
Root = (Node)formatter.Deserialize(stream);
}
}