View Code of Problem 72

#include <stdio.h>
#include <string.h>
void main() 
{
	int m, n;
	scanf("%d %d", &m, &n);
	float a[100], sum = 0;
	a[0] = m;
	for (int 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);
	
}