Untitled

#include <iostream>
#include "windows.h"

using namespace std;

struct Watch {
    char Case;
    union {
        struct {
            char watchName[15], Model[9], dial[10];
        } Retailer;
        struct {
            char watchName[15];
            int NumId;
        } Stock;
    };
    char Address[40];
    int Length;
};

Watch InpWatchInfo(char cs) {
    Watch watch;
    watch.Case = cs;
    if (watch.Case) {
        cout << "Производитель часов: ";
        cin >> watch.Stock.watchName;
        cout << "Номер: ";
        cin >> watch.Stock.NumId;
    } else {
        cout << "Производитель часов: ";
        cin >> watch.Retailer.watchName;
        cout << "Модель часов: ";
        cin >> watch.Retailer.Model;
        cout << "Цвет циферблата: ";
        cin >> watch.Retailer.dial;
    }
    cout << "Адрес: ";
    cin >> watch.Address;
    watch.Length = 0;
    return watch;
}

void OutWatchInfo(Watch watch) {
    if (watch.Case) {
        cout << watch.Stock.watchName << " | ";
        cout << watch.Stock.NumId;
    } else cout << watch.Retailer.watchName << " | " << watch.Retailer.Model << " | " << watch.Retailer.dial;
    cout << " | " << watch.Address << endl
         << "Длина: " << watch.Length << "зв." << endl;
}

Watch &AddLength(Watch &watch, int length) {
    watch.Length += length;
    return watch;
}

Watch *SubLength(Watch *watch, int length) {
    watch->Length -= length;
    return watch;
}

int main() {

    SetConsoleOutputCP(CP_UTF8);
    Watch DataBase[10], watch = {0, {"", "", 0}, "", 0};
    int i, j;
    for (i = 0; i < sizeof(DataBase) / sizeof(Watch); i++) {
        DataBase[i] = watch;
    }
    while (1) {
        cout << " Меню СУБД:" << endl
             << "1. Ввод данных." << endl
             << "2. Вывод информации о товаре." << endl
             << "3. Вывод всей информации." << endl
             << "4. Увеличить длину браслета." << endl
             << "5. Уменьшить длину браслета." << endl
             << "6. Удалить данные." << endl
             << "7. Закончить работу." << endl
             << ">";
        cin >> i;
        switch (i) {
            case 1:
                cout << "Номер: ";
                cin >> i;
                cout << "Вариант (0-магазин, 1-наличие в городе): ";
                cin >> j;
                DataBase[i] = InpWatchInfo(j);
                break;
            case 2:
                cout << "Номер: ";
                cin >> i;
                OutWatchInfo(DataBase[i]);
                break;
            case 3:
                for (i = 0; i < sizeof(DataBase) / sizeof(Watch); i++)
                    if (DataBase[i].Address[0]) {
                        cout << "Часы: " << i << ":" << endl;
                        OutWatchInfo(DataBase[i]);
                    }
                break;
            case 4:
                cout << "Номер: ";
                cin >> i;
                cout << "Длина: ";
                cin >> j;
                AddLength(DataBase[i], j);
                break;
            case 5:
                cout << "Номер: ";
                cin >> i;
                cout << "Насколько уменьшить длину: ";
                cin >> j;
                SubLength(DataBase + i, j);
                break;
            case 6:
                cout << "Номер: ";
                cin >> i;
                DataBase[i] = watch;
                break;
            case 7:
                return 0;
            default:
                cout << "Повторите ввод!" << endl;
        }
    }
}