View Code of Problem 72

#include<stdio.h>
int main()
{
	int n;
	double m,sum;
	scanf("%lf %d",&m,&n);
	sum=m;
	m=m/2.0;
	for(int i=0;i<n-1;i++)
	{
		sum+=2*m;
		m=m/2.0;
		
	}
	printf("%.2f %.2f",m,sum);
	return 0;
}