// Calculates cost of one ounce of pure alcohol

#include <iostream>
using namespace std;

int main()
{

        float proof, volume, beerc, beerv, price, worth, content, ml;
        char beeryn;    // beer yes or no
        char help;      // need help converting yes or no



        cout << "n" << endl;
        cout << "***********************************************************" << endl;
        cout << "* This program calculates how much you are paying for an  *" << endl;
        cout << "* ounce of pure alcohol when you buy booze. This can be   *" << endl;
        cout << "* used as an effective way of comparing the value of one  *" << endl;
        cout << "* spirit versus another.                                  *" << endl;
        cout << "***********************************************************" << endl;
        cout << "                   *     Created by    *" << endl;
        cout << "                   *  Samuel J. Cashen *" << endl;
        cout << "                   *********************" << endl;                    
        cout << "n";
        cout << "First, do you need help converting from milliliters to ounces?";
        cout << " (Y or N): ";
        cin >> help;

        if ((help == 'Y') || (help == 'y'))
        {
        cout << "How many milliliters is it? ";
        cin >> ml;
        volume = ml * 0.0338140226;
        cout << ml << " milliliters is equal to " << volume << " ounces" << endl;
        }

        cout << "Is this beer? (Y or N) ";
        cin >> beeryn;

        if ((beeryn == 'Y') || (beeryn == 'y'))
        {
        cout << "Enter number of beers in case: ";
        cin >> beerc;
        cout << "Enter volume of one can of beer in ounces: ";
        cin >> beerv;
        volume = beerv * beerc;
        }

        if (((beeryn == 'N') || (beeryn == 'n')) && ((help == 'N') || (help == 'n')))
        {
        cout << "Enter the volume in ounces: ";
        cin >> volume;
        }

        cout << "Enter the proof: ";
        cin >> proof;

        cout << "Enter the price: $";
        cin >> price;

        content = (volume)  * ( proof / 200 );

        worth = (price) / (content);

        cout << "There are " << content << " ounces of pure alcohol" << endl;
        cout << " which you are paying for at a rate of $" << worth << endl;
        cout << " per ounce of pure alcohol." << endl;

        return 0;
}