// Add one to every suitable root, call order if it pass on avl rules
private void Cal_heigh()//logn
{
if (Mum != null)
{
int left_h;
if (Mum.Left == null)
{
left_h = 0;
}
else
{
left_h = Mum.Left.Height;
}
int right_h;
if (Mum.Right == null)
{
right_h = 0;
}
else
{
right_h = Mum.Right.Height;
}
int diff = right_h - left_h;
//Console.WriteLine("Cal_heigh {0}, {1}, {2}", Mum.Left, Mum, Mum.Right);
//Console.WriteLine("{0}, {1}, {2}", left_h, Mum.Height, right_h);
//Console.Read();
AVL X = Mum;
if (diff == 2)
{
X = Mum.Order(Mum.Left);
Mum.Height -= 1; //for setup to order
AVL mum_of_mum = Mum.Mum;
if (mum_of_mum != null) //set the mum of mum pointers
{
if (mum_of_mum.Right == Mum)
{
X = Mum.Order(Mum.Right);
mum_of_mum.Right = X;
}
else
{
X = Mum.Order(Mum.Right);
mum_of_mum.Left = X;
}
}
else
{
X = Mum.Order(Mum.Right);
}
}
else
{
if (diff == -2)
{
Mum.Height -= 1; //for setup to order
AVL mum_of_mum = Mum.Mum;
if (mum_of_mum != null) //set the mum of mum pointers
{
if (mum_of_mum.Right == Mum)
{
X = Mum.Order(Mum.Left);
mum_of_mum.Right = X;
}
else
{
X = Mum.Order(Mum.Left);
mum_of_mum.Left = X;
}
}
else
{
X = Mum.Order(Mum.Left);
}
}
else
{
if (diff > 0)
{
Mum.Height = right_h + 1;
}
else
{
Mum.Height = left_h + 1;
}
}
}
//Console.WriteLine("{0}, {1}, {2}", left_h, Height, right_h);
//Console.Read();
X.Cal_heigh();
}
}
