astro

#include <iostream>
#include <cstring>
#include <iomanip>
using namespace std;

void userInformation(string&, char&, char&);
void charge(char, char, double&, double&);
void receipt(string, char, char, double, double);

int main(){

    bool stop = false;
    string smartCard;
    char packageCode, additionalTV, stopResult;
    double totalBeforeTax, totalWithTax, totalFamilyPack = 0.0, totalFamilyHDPack = 0.0;

    while(stop != true){
    userInformation(smartCard, packageCode, additionalTV);
    charge(packageCode, additionalTV, totalBeforeTax, totalWithTax);
    receipt(smartCard, packageCode, additionalTV, totalBeforeTax, totalWithTax);
    if(packageCode == 'A' || packageCode == 'a')
        totalFamilyPack += totalWithTax;
    if(packageCode == 'B' || packageCode == 'b')
        totalFamilyHDPack += totalWithTax;
    cout << "\nEnter N to stop or another key to continue : ";
    cin >> stopResult;
    cout << endl;
    if(stopResult == 'N' || stopResult == 'n')
        stop = true;
    else
        stop = false;
    }
    cout << "----------------------------------------------------------------\n";
    cout << "Total Package Collection\n";
    cout << "Astro Family Pack (RM)      : " << totalFamilyPack ;
    cout << "\nAstro Family HD Pack (RM)   : " << totalFamilyHDPack;
    cout << "\n----------------------------------------------------------------\n";
}
 void userInformation(string &smartCard, char &packageCode, char &additionalTV){

    cout << "Enter your smart card number : " ;
    cin >> smartCard;
    cout << "Enter package code : ";
    cin >> packageCode;
    if(packageCode != 'A' && packageCode != 'B'){
        cout << "You have entered invalid package code";
    } else {
        cout << "Enter additional TV series code : ";
        cin >> additionalTV;
    }
}
void charge(char packageCode, char additionalTV, double &totalBeforeTax, double &totalWithTax){

    float packagePrice, additionalPrice = 0;
    if(packageCode == 'A' || packageCode == 'a'){
        packagePrice = 130.00;
        if(additionalTV == 'F' || additionalTV == 'f')
            additionalPrice = 25.00;
        else if(additionalTV == 'L' || additionalTV == 'l')
            additionalPrice = 20.00;
            else
                additionalPrice = 0;
    } else {
        packagePrice = 125.00;
        if(additionalTV == 'S' || additionalTV == 's')
            additionalPrice = 35.00;
        else
            additionalPrice = 0;
    }
    totalBeforeTax = packagePrice + additionalPrice;
    totalWithTax = totalBeforeTax + (totalBeforeTax * 0.06);
}
void receipt(string smartCard, char packageCode, char additionalTV, double totalBeforeTax, double totalWithTax){

    string packageName;

    if(packageCode == 'A' || packageCode == 'a')
        packageName = "Astro Family Pack";
    else if(packageCode == 'B' || packageCode == 'b')
        packageName = "Astro Family HD Pack";

    cout.setf(ios::fixed);
    cout.precision(2);
    cout << "----------------------------------------------------------------\n";
    cout << "ASTRO BILLING SERVICE\n";
    cout << "Smart Card No.                          : " << smartCard      << endl;
    cout << "Package Name                            : " << packageName    << endl;
    cout << "Additional TV Series                    : " << additionalTV   << endl;
    cout << "Total Charge (RM)                       : " << totalBeforeTax << endl;
    cout << "New charge after 6% govt. tax (RM)      : " << totalWithTax   << endl;

}