#include<string>
#include<stdio.h>
#include<stdlib.h>

using namespace std;

float pay,price,dis,change,sale;
char username[30];
char password[30];


int main(){
    string ch_username="Cashier01",ch_password="adminadmin";
    printf("\t\t---stree shop---\n\n");
    printf("please login...");
    printf("\nusername:");
    scanf("%s",&username);
    printf("password:");
    scanf("%s",&password);


    if(username==ch_username&&password==ch_password){


                                                     printf("\nHi Cashier01");


                                                     printf("\nplease insert price:");
                                                     scanf("%f",&price);

                                                     printf("please insert pay:");
                                                     scanf("%f",&pay);

                                                     if(price>=1000){
                                                                     dis=(price/100)*5;
                                                                     sale=pay-dis;
                                                                     change=pay-sale;
                                                                     printf("customer got 5%% discount as %0.2f",dis);printf("Bath");
                                                                     printf("\nprice after discount is %0.02f",sale);printf("Bath");
                                                                     printf("\nplease change %0.02f",change);printf("Bath");
                                                                     }
                                                                     else{
                                                                         change=pay-price;
                                                                          }
                                                                          }
                                                                          system("pause");
                                                                          }