View Code of Problem 72

#include<iostream>
#include<cstring>
#include<string>
#include<algorithm>
#include<vector>
using namespace std;

int main()
{
	double m;
	int n;
	cin >> m >> n;
	double sum = 0;
	for (int i = 0; i < n; i++) {
		sum = sum + 2*m;
		m = m / 2;
	}
	printf("%.2f %.2f", m, sum - 1000);
	return 0;
}