BloodBank

#include <iostream>
#include <iomanip>
#include<conio.h>

using namespace std;
int cust_num, btype, amtdis;
double a = 0, b = 0, ab = 0, o = 0;
char sex;
double NOL, amt;
string disp;
char con;
int main() {
    cout <<fixed<<setprecision(2);
    cout << "Costumer Number: ";
    cin >> cust_num;
    cout << "Costumer Number: " << cust_num << endl;
    cout << "SEX input ('M' for male) and ('F' for female): ";
    cin >> sex;
    sex = toupper(sex);
    if (sex == 'F') {
        cout << "\nYou are a female.\n";
    } else if (sex == 'M') {
        cout << "\nYou are a male\n";
    } else {
        cout << "\nInvalid input\nTry again";
        system("clear");
        main();
    }

    cout << "\nBlood type code is:\n1 - 'A'\n2 - 'B'\n3 - 'AB'\n4 - 'O'\nEnter your Blood Type: ";
    cin >> btype;
    if (btype == 1) {
        cout << "\nYour blood type is A.\n";
        cout << "\nInput the amount for liters of blood: ";
        cin >> NOL;

        amt = (500 * NOL) + (40.0025 * NOL);
        cout << "\nTo be paid: " << amt << endl;
        cout << "\nDon't display total payment of bloodtype (yes/no): ";
        cin >> disp;

        if (disp == "no") {
            if (btype == 1) {
                a += amt;
            }
        } else{
            cout<<"+-----------------------------------------------------------+"<<endl;
            cout<<"|                Dracula’s Blood Bank                       |"<<endl;
            cout<<"|                     Horror City                           |"<<endl;
            cout<<"+-----------------------------------------------------------+"<<endl;
            cout<<"| Customer Number   |   Sex  |  Blood Type  | No. of Liters |"<<endl;
            cout<<"+-----------------------------------------------------------+"<<endl;
        }
    }
    if (btype == 2) {
        cout << "\nYour blood type is B.\n";
        cout << "\nInput the amount for liters of blood: ";
        cin >> NOL;

        amt = (3500 * 3) + (40.0025 * (NOL - 3));
        cout << "\nTo be paid: " << amt << endl;
        cout << "\nDon't display total payment of bloodtype (yes/no): ";
        cin >> disp;

        if (disp == "no") {
            if (btype == 2) {
                b = b + amt;
            }
        }else{
            cout<<"+-----------------------------------------------------------+"<<endl;
            cout<<"|                Dracula’s Blood Bank                       |"<<endl;
            cout<<"|                     Horror City                           |"<<endl;
            cout<<"+-----------------------------------------------------------+"<<endl;
            cout<<"| Customer Number   |   Sex  |  Blood Type  | No. of Liters |"<<endl;
            cout<<"+-----------------------------------------------------------+"<<endl;
        }
    }
    if (btype == 3) {
        cout << "\nYour blood type is AB.\n";
        cout << "\nInput the amount for liters of blood: ";
        cin >> NOL;

        if (NOL == 4) {
            amt = (6000 * NOL);
            cout << "\nTo be paid: " << amt << endl;

        } else if (NOL > 4 && NOL < 7) {
            amt = (7000 * NOL);
            cout << "\nTo be paid: " << amt << endl;

        } else if (NOL >= 7) {
            amt = (10000 * NOL) + (1.75 * NOL);
            cout << "\nTo be paid: " << amt << endl;
        }
        cout << "\nDon't display total payment of bloodtype (yes/no): ";
        cin >> disp;
        if (disp == "no") {
            if (btype == 3) {
                ab = ab + amt;
            }
        }else{
            cout<<"+-----------------------------------------------------------+"<<endl;
            cout<<"|                Dracula’s Blood Bank                       |"<<endl;
            cout<<"|                     Horror City                           |"<<endl;
            cout<<"+-----------------------------------------------------------+"<<endl;
            cout<<"| Customer Number   |   Sex  |  Blood Type  | No. of Liters |"<<endl;
            cout<<"+-----------------------------------------------------------+"<<endl;
        }
    }

    if (btype == 4) {
        cout << "\nYour blood type is O.\n";
        cout << "\nInput the amount for liters of blood: ";
        cin >> NOL;
        amt = (NOL * 500);
        cout << "\nTo be paid: " << amt << endl;
        cout << "\nDon't display total payment of bloodtype (yes/no): ";
        cin >> disp;
        if (disp == "no") {
            if (btype == 4) {
                o = o + amt;
            }
        }else{
            cout<<"+-----------------------------------------------------------+"<<endl;
            cout<<"|                Dracula’s Blood Bank                       |"<<endl;
            cout<<"|                     Horror City                           |"<<endl;
            cout<<"+-----------------------------------------------------------+"<<endl;
            cout<<"| Customer Number   |   Sex  |  Blood Type  | No. of Liters |"<<endl;
            cout<<"+-----------------------------------------------------------+"<<endl;
        }
    }
    cout << "\nA = " << a << endl;
    cout << "\nB = " << b << endl;
    cout << "\nAB =" << ab << endl;
    cout << "\nO = " << o << endl;

    cout << "Input for another user? (Y/N): ";
    cin >> con;

    if (con == 'Y') {
        system("clear");
        main();
    } else {
        cout << "\nProgram Stopped";
    }
}