View Code of Problem 72

#include <stdio.h>
#include <string.h>
#include <math.h>
#define N 100
int main()
{
	int i;
	float n, m;
	scanf("%f %f", &n, &m);
	float sum = n;
	for (i = 0; i < m; i++)
	{
		if(i<m-1)
			sum += n;
		n /= 2;
	}
	printf("%.2f %.2f", n, sum);
}