internal void preOrder()
{
Console.WriteLine("Vrijednost:" + this.Vrijednost + " dubina cvora:" + this.dubina);
if (this.leftChild != null)
{
leftChild.preOrder();
}
if (this.rightChild != null)
{
rightChild.preOrder();
}
}
public void preOrder()
{
Console.WriteLine("Ispis preOrder");
root.preOrder();
}