View Code of Problem 72

#include<stdio.h>
int main()
{
	int i,n;
	double m,sum=0;
	scanf("%lf%d",&m,&n);
	sum=m;
	m=m/2;
	for(i=1;i<n;++i)
	{
		sum=sum+m*2;
		m=m/2;
	}
	printf("%.2lf %.2lf",m,sum);

}