View Code of Problem 72

#include <stdio.h>
int main()
{
	int m,n,i;
	float a[100],sum=0;
	scanf("%d %d",&m,&n);
	a[0]=m;
    for(i=1;i<=n;i++)
	{
		a[i]=1.0*a[i-1]/2;
		sum=sum+2*a[i-1];
	}
	printf("%.2f %.2f",a[n],sum-m);
	return 0;
}