private static void TestAvlTree()
{
var tree = new AvlTree <int>();
var rnd = new Random();
for (int i = 0; i < 128; i++)
{
var number = rnd.Next(-100, 100);
tree.Add(number);
Console.WriteLine("number: {0}, tree size: {1}, tree height: {2}", number, tree.Count, tree.Height);
}
tree.GetOrdered();
}