View Code of Problem 72

#include <stdio.h>
#include <stdlib.h>

int main()
{
    float M,N,i;
    scanf("%f%f",&M,&N);
    float sum=M,a;
    a=M/2;
    for(i=2;i<=N;i++)
    {
        sum=sum+2*a;
        a=a/2;

    }

    printf("%.2f %.2f",a,sum);
    return 0;
}