protected int getHeightI(Node node)
{
if (node == null)
{
return(-1);
}
cQueue q = new cQueue();
int height = 0;
// adding nodes in level order
q.enqueue(node);
q.enqueue(null); // adding null as marker
while (!q.isEmpty())
{
Node n = (Node)q.dequeue();
if (n == null)
{
// reached end of the current Level
// add null if there are more levels
if (!q.isEmpty())
{
q.enqueue(null);
}
height++;
}
else
{
// if not null than add the
// children of extracted node
if (n.left != null)
{
q.enqueue(n.left);
}
if (n.right != null)
{
q.enqueue(n.right);
}
}
} // while(!q.isEmpty())
return(height);
}
protected void LevelOrderI()
{
// requires Queue data structure
Node curr = getRoot();
if (curr == null)
{
return;
}
cQueue q = new cQueue();
q.enqueue(curr);
while (!q.isEmpty())
{
curr = (Node)q.dequeue();
Console.Write("{0} ", curr.val);
if (curr.left != null)
{
q.enqueue(curr.left);
}
if (curr.right != null)
{
q.enqueue(curr.right);
}
}
}
