public void Add(T1 key, T2 value)
{
var valueNode = new twoNode <T1, T2> (key, value);
//Console.WriteLine("the char is {0}", key);
parent = Add(ref parent, valueNode);
}
private void PrintNode(BSTtwo3Node <T1, T2> root, char symbol, int n, char location)
{
Console.ReadKey();
if (n < 0)
{
n = 0;
}
var c = new string(symbol, n);
//Console.WriteLine("here");
Console.Write(c + "({0},{1})({2}({3}))", root.min.key, root.min.value, root.count, location);
if (root.max != null)
{
Console.Write(" ({0},{1})({2}({3}))", root.max.key, root.max.value, root.count, location);
}
Console.WriteLine();
if (root.right != null)
{
PrintNode(root.right, ' ', n + 10, 'r');
}
if (root.center != null)
{
PrintNode(root.center, ' ', n, 'c');
}
if (root.left != null)
{
PrintNode(root.left, ' ', n - 7, 'l');
}
}
private BSTtwo3Node <T1, T2> Add(ref BSTtwo3Node <T1, T2> root, twoNode <T1, T2> valueNode)
{
if (root == null)
{
Console.WriteLine("root is null case " + valueNode.key);
root = new BSTtwo3Node <T1, T2>(valueNode);
return(root);
}
else
{
if (root.max == null && root.left == null && root.right == null && root.center == null)
{
Console.WriteLine("max is null case " + valueNode.key);
root.max = valueNode;
Swap(ref root.max, ref root.min);
}
else
{
if (root.max == null)
{
Console.WriteLine("node is not full case " + valueNode.key);
if (valueNode.key.CompareTo(root.min.key) < 0)
{
root.left = Add(ref root.left, valueNode);
if (root.left.left != null && root.left.right != null)
{
root.center = root.left.right;
root.max = root.left.min;
root.left = root.left.left;
}
}
else if (valueNode.key.CompareTo(root.min.key) > 0)
{
root.right = Add(ref root.right, valueNode);
if (root.right.left != null && root.right.right != null)
{
root.center = root.right.left;
root.max = root.right.min;
root.right = root.right.right;
}
}
}
else
{
string c;
if (root.min.key == null)
{
c = "null";
}
else
{
c = root.min.key.ToString();
}
Console.WriteLine("node is full case {0} on {1}", valueNode.key, c);
if (valueNode.key.CompareTo(root.min.key) < 0)
{
root.left = Add(ref root.left, valueNode);
if (root.right == null)
{
root.right = new BSTtwo3Node <T1, T2>(root.max);
root.max = null;
}
}
else if (valueNode.key.CompareTo(root.min.key) > 0 && valueNode.key.CompareTo(root.max.key) < 0)
{
root.center = Add(ref root.center, valueNode);
}
else if (valueNode.key.CompareTo(root.max.key) > 0)
{
bool rightWasNull = false, maxWasNull = true, transformHappened = false;
if (root.right == null)
{
rightWasNull = true;
}
else
{
if (root.right.max == null)
{
maxWasNull = true;
}
else
{
maxWasNull = false;
}
}
root.right = Add(ref root.right, valueNode);
if (root.right.max == null && !maxWasNull)
{
transformHappened = true;
}
if (rightWasNull)
{
//Console.WriteLine("herel"+valueNode.key.ToString());
root.left = new BSTtwo3Node <T1, T2>(root.min);
root.min = root.max;
root.max = null;
}
if (transformHappened)
{
var newleftroot = new BSTtwo3Node <T1, T2>(root.min);
newleftroot.left = root.left;
newleftroot.right = root.center;
var mainnode = new BSTtwo3Node <T1, T2>(root.max);
mainnode.right = root.right;
mainnode.left = newleftroot;
root = mainnode;
}
}
}
}
}
return(root);
//Console.WriteLine("the tree is {0}", valueNode.key);
}
