Toll Plaza management system

                                                     This project is on toll plaza management, whenever any vehicle will pass the toll plaza, it has to pay tax. This system tell us that there are how many vehicles which have paid and how many such vehicles which don’t paid toll plaza tax.

#include<iostream>

using namespace std;

char a;

char b;

char c;

class sir

{

private:  

                unsigned int cars;

                unsigned int amount;

public:

                void az()

                {start:

                                cout<<"car payed amount or not press y/n"<<endl;

                cin>>b;

                if(b=='y')

                {cars=0;

                amount=0;

                asd:

                                cars=cars+1;

                                amount=amount+50;

                                cout<<"no. of cars is     "<<cars<<endl<<"total amount is    "<<amount<<endl;

                                cout<<"if car payed amount then press y otherwise n"<<endl;

                                cin>>a;

                                if(a=='y')

                                {goto asd;}

                }

                else

                {}

ab:

                cars=cars+1;

                cout<<"total cars are "<<cars<<endl<<"total amount is  "<<amount<<endl;

                cout<<"next car payed amount or not press y/n"<<endl;

                cin>>c;

                if(c=='y')

                {goto asd;}

                else

                {goto ab;}

                }

};

void main()

{

                sir yes;

                yes.az();

                cout<<endl;

                system("pause");

}