View Code of Problem 72

#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
	float m,n;
	cin>>m>>n;
	float sum=m;
	m=m/2;
	for(int i=0;i<n-1;i++)
	{
		sum+=m*2;
		m=m/2;
	}
	cout<<fixed<<setprecision(2)<<m<<" "<<sum<<endl;
}

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