View Code of Problem 72

# include<stdio.h>
int main(){
	double M,N;
	scanf("%lf %lf",&M,&N);
	double sum0=0,H=M;
	int cnt=0;
	while(cnt!=N-1){
		cnt++;
		H=H/2;
		sum0+=2*H;
	}
	double sum=sum0+M;
    printf("%.2f %.2f",H/2,sum);
	return 0; 
	
}