View Code of Problem 72

int main() {
    int n;
    double m,temp;
    scanf("%lf %d",&m,&n);
    double sum=0.0;
    for(int i=0;i<n;++i){
        sum+=m;
        m/=2.0;
        sum+=m;
    }
    sum-=m;
    printf("%.2lf %.2lf",m,sum);
    return 0;
}

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