/*
#include <cstdio>
#include <fstream>
#include <iomanip>
#include <stdio.h>
#include <iostream>
#include <cstring>
#include <vector>
#include <string>
using namespace std;


class Items
{
public:
    int id;
    char Name[20];
    int Weight;
    int Price;
};

class Users
{
public:
    int id;
    char Login[20];
    char Password[20];
    int Status;
};
int Fmain();
int back();
int fChoose();
void OutputItems(vector<Items> items);
void OutputUsers(vector<Users> users);
void AddNewItem(vector<Items> items, Items item1, FILE *dataF);
//int CheckIfUserExists(vector<Users> users, FILE *logPass);

int main()
{


    // DO THIS AT THE START OF THE PROGRAM
    // DO THIS AT THE START OF THE PROGRAM
    // DO THIS AT THE START OF THE PROGRAM
    vector<Items> items;
    vector<Users> users;
    Items item1;
    Users user1;
    // open datafile
    FILE *dataF = NULL;
    dataF = fopen("datafile.txt" , "r+");
    // open logins and passwords file
    FILE *logPass = NULL;
    logPass = fopen("logPass.txt", "r+");
    // read from files
    if (dataF != NULL)
    {
        while (!feof(dataF))
        {
            fscanf(dataF, "%i%s%i%i", &item1.id, &item1.Name , &item1.Weight , &item1.Price);
            items.push_back(item1);
        }
    }
    else
    {
        cout << "Cannot open file datafile.txt" << endl;
    }
    if (logPass != NULL)
    {
        while (!feof(logPass))
        {
            fscanf(logPass, "%i%s%s%i", &user1.id, &user1.Login, &user1.Password, &user1.Status);
            users.push_back(user1);
        }
    }
    else
    {
        cout << "Cannot open file datafile.txt" << endl;
    }
    // END START OF PROGRAM
    // END START OF PROGRAM
    // END START OF PROGRAM

    int iChoose;


    while (iChoose != 4) {
        iChoose = fChoose();

        switch (iChoose) {
            case 1 : {
                system("cls");
                OutputItems(items);


                if (back() == 1) {
                    system("cls");
                    break;
                }
            }


            case 2 : {

                AddNewItem(items, item1, dataF);

                if (back() == 1) {
                    system("cls");
                    break;
                }
            }

            case 3 : {


                cout <<"test!!";



                if (back() == 1) {
                    system("cls");
                    break;
                }
            }
            case 4 :{
                system("cls");
                cout << "Good bye.";
                break;
            }
        }
    }




    //output id and name



    system("pause");
    return 0;
}

void OutputItems(vector<Items> items)
{
    cout << "Items: \n";
    for (int i = 0; i < items.size(); ++i)
    {
        cout  << items[i].id << ": "
             << setw(10) << items[i].Name << ": "
             << setprecision(0) << setw(12) << items[i].Weight
             << setprecision(2) << setw(6) << items[i].Price << endl;
    }
}

void OutputUsers(vector<Users> users)
{
    cout << "Users: \n";
    for (int i = 0; i < users.size(); ++i)
    {
        cout << users[i].id << " " << users[i].Login << " "
             << users[i].Password << " " << users[i].Status << endl;
    }
}

void AddNewItem(vector<Items> items, Items item1, FILE *dataF)
{
    cout << "enter id: " << endl;
    cin >> item1.id;
    cout << "enter name" << endl;
    cin >> item1.Name;
    cout << "enter Weight" << endl;
    cin >> item1.Weight;
    cout << "enter Price" << endl;
    cin >> item1.Price;
    items.push_back(item1);
    fprintf(dataF, "\n%i %s %i %i", item1.id, item1.Name, item1.Weight, item1.Price);
}


int fChoose(){
    int choose;

    cout << "1)Watch" << endl;
    cout << "2)Add" << endl;
    cout << "3)Change" << endl;
    cout << "4)Exit" << endl;


    cin>> choose;
    return choose;
}

int back(){
    int choose;
    cout <<"1)Back" << endl;
    cin >> choose;
    if(choose != 1) {
        while (choose != 1) {
            cout << "Write a correct number!" << endl;
            cout <<"1)Back" << endl;
            cin >> choose;
            if (choose == 1) {
                break;
            }
        }
    }
    return choose;
}

int Fmain(){
    int choose;
    cout << "1)Registation" << endl;
    cout << "2)Log in" << endl;
    cin >> choose;
    return choose;
}*/