public T this [int index] {
get {
if (index >= Count)
{
throw new ArgumentOutOfRangeException("index");
}
return(root.GetNodeAt(index).Value);
}
}
public AvlNode <T> GetNodeAt(int index)
{
if (index < left._count)
{
return(left.GetNodeAt(index));
}
if (index > left._count)
{
return(right.GetNodeAt(index - left._count - 1));
}
return(this);
}
