[memset]

Hello,
I have difficulties to understand how the number of peers is estimated.

I understand the function, except the third case.

uint32 CRoutingZone::estimateCount()
{
	if( !isLeaf() )
		return 0;

 	if( m_level < KBASE )
		return (pow(2, m_level)*10);

        //I don't understand from here
	CRoutingZone* curZone = m_superZone->m_superZone->m_superZone;
        float modify = ((float)curZone->getNumContacts())/20.0F;
	return (pow( 2, m_level-2))*10*(modify);
}

Why going up to the third super zone to get contacts ? why the division by 20? why mlevel -2 on the last line?

Thanks in advance for your help and consideration.