// ATM WORKING

#include<iostream>
using namespace std;

 string password="1234";//string pin;
 double balance =10000.01000;double amount;
 
 bool pin(string pass){
    if(pass == password) return 1;
    else return 0;
 }

int main(){
    string pass ;
    cout<<"\n\n\t enter the four digit password to login --> ";
    cin>>pass;
     
    if(pass==password) {
        cout<<"\n\t    WELCOME  THE TIWARI ATM \n";
         cout<<"\n\t********** MENU **********\n";
         cout<<"\t*  1.check balance       *\n";
         cout<<"\t*  2.case deposite       *\n";
         cout<<"\t*  3.case withdrawal     *\n";
         cout<<"\t*  4.case transfer       *\n";
         cout<<"\t*  5.exit                *\n";
         cout<<"\t**************************\n";

        int choice;
        cout<<"\tENTER THE YOUR CHOICE--> ";
        cin>>choice;

        switch (choice){
            case 1: cout<< "\t your available balance is : "<<balance<<endl;
             cout<<"\n\t** THANKYOU TO USING ATM **\n";
            break;

            case 2:
            cout<<"\tRE-ENTER THE FOUR DIGIT PASSWORD -->";
            cin>>pass;
            if(pin(pass)){
                cout<<"\tENTER THE AMOUNT TO DEPOSITE-->";
                cin>>amount;balance+=amount;
                cout<<"\tDEPOSITE SUCCESSFULLY...\n";
                cout<< "\tyour available balance is : "<<balance<<endl;
                cout<<"\n\t** THANKYOU TO USING ATM **\n";
            }else cout<<"\n\t TRY AGAIN !.. WRONG RE- ENTER PASSWORD...\n";

            case 3:
            cout<<"\tRE-ENTER THE FOUR DIGIT PASSWORD -->";
            cin>>pass;
            if(pin(pass)){
                cout<<"\tENTER THE AMOUNT TO withdrawal-->";
                cin>>amount;
                if(amount <= balance){
                balance-=amount;
                cout<<"\tWITHDRAWAL SUCCESSFULLY...\n";
                cout<< "\tyour available balance is : "<<balance<<endl;
                cout<<"\n\t** THANKYOU TO USING ATM **\n";
                }else cout<<"\tSORRY ! YOUR BALANCE IS INSUFFICENT  ... \n";
            }else cout<<"\n\t TRY AGAIN !.. WRONG RE- ENTER PASSWORD...\n";
            break;

             case 4:
            cout<<"\tRE-ENTER THE FOUR DIGIT PASSWORD -->";
            cin>>pass;
            if(pin(pass)){
                cout<<"\tENTER THE AMOUNT TO TRANSFER-->";
                cin>>amount;
                if(amount <= balance){
                balance-=amount;
                cout<<"\tTRANSFER SUCCESSFULLY...\n";
                cout<< "\tyour available balance is : "<<balance<<endl;
                cout<<"\n\t** THANKYOU TO USING ATM **\n";
                }else cout<<"\tSORRY ! YOUR BALANCE IS INSUFFICENT  ... \n";
            }else cout<<"\n\t TRY AGAIN !.. WRONG RE- ENTER PASSWORD...\n";
            break;

               case 5: cout<< "\t**  THANKYOU TO USING ATM  ** : \n";
            break;

            default: cout<<"\t TRY AGAIN ! INVALID CHOICE....\n";


        }

    }else cout<<"\n\t TRY AGAIN !.. WRONG PASSWORD...\n";
    
}