float congthuc(int A1 , int D1 , int A2 , int D2 , int P)
{
	float ketqua = 0.0;
	float d = 0 , e = 0 , f = 0 , g = 0 , max = 0 , min = 0;
	d = (float)((A1 - D2 + 88) * (12 - P)) / 1232;
	e = (float)((D1 - A2 + 90) * (12 - P)) / 1260;


	if (d > e)
		max = d;
	else
		max = e;

	if (max < 1)
		ketqua = max;
	else
		ketqua = 1.00;

	return ketqua;
}





b = A1 * 2;
	c = D1 / 2;
	i = D2 - 20;
	h = A2 * 20;
	if (h > 90)
		h = 90;
	if (i < 1)
		i = 1;
	if (c < 1)
		c = 1;
	if (b > 100)
		b = 100;



//truong hop a
	if (( A2 > (D1 * 2)) && (D2 > (A1 * 2) ))
	{
		if ( P >= 5 )
				fOut = 0.0;

		else
			if ( P < 5 )
		{
			fOut = congthuc(b,c,A2,D2,P);
		}
	}