View Code of Problem 72

#include<stdio.h>

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