/// <summary>
/// single right rotation
/// see ABL Trees from Lab 20
///
/// </summary>
/// <param name="pivot"></param>
public void RotateRight(RBTreeNodea <T> pivot)
{
}
/// <summary>
/// single left rotation
/// see ABL Trees from Lab 20
///
/// </summary>
/// <param name="pivot"></param>
public void RotateLeft(RBTreeNodea <T> pivot)
{
}