View Code of Problem 448

#include <stdio.h>

int main()
{
	int n,i,j;
	double x,y,a,b;
	scanf("%d",&n);
	while(n--)
	{
		scanf("%lf%lf",&a,&b);
		if(a<=3)
        {
            x=11+b/5.0*2;
            y=11+b/4.0*2.5;
        }
		else if(a<=10)
        {
            x=(11+b/5.0*2+(a-3)*2);
            y=(11+b/4.0*2.5+(a-3)*2.5);
        }
		else
        {
            x=(11+b/5.0*2+14+(a-10)*3);
            y=(11+b/4.0*2.5+7*2.5+(a-10)*3.75);
        }
		i=(x+0.5);
		j=(y+0.5);
        printf("%d\n",j-i);
	}
	return 0;
}