View Code of Problem 72

#include <stdio.h>
int main(){
	int M,N,i;
	scanf("%d %d",&M,&N);
	float a[N],sum=0;
	a[0]=M;
	sum=a[0];
	for(i=1;i<N;i++){
		a[i]=a[i-1]/2.0;
	}
	printf("%.2f ",a[N-1]/2.0);
	for(i=2;i<=N;i++){
		sum+=2.0*a[i-1];
	}
	printf("%.2f",sum);
}

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