View Code of Problem 72

#include<stdio.h>



int main()
{
	double m;int n;
	scanf("%lf %d",&m,&n);
	double fantan=0.0;
	double sum=0.0;
	for(int i=1;i<=n;i++)
	{
		sum+=m;
		m=1.0*m/2;
		sum+=m;
	}
	
	printf("%.2f %.2f\n",m,sum-m);
	return 0;
}