cppTelMobSortMenu

#include <iostream>

int main()
{
    const int arrSize{ 5 };
    int tels[arrSize]{ 1234,9753,2468,5678,3232 };
    int mobs[arrSize]{ 2222,1111,4444,6666,5555 };
    bool correct{ false };
    char menu{ 'a' };
    int tmp;

    do
    {
        do
        {
            std::cout << "\na - List all users\nb - Sort by tel\nc - Sort by mob\nx - Exit\n";
            std::cin >> menu;
            correct = menu == 'a' or menu == 'b' or menu == 'c' or menu == 'x';
            if (!correct)
            {
                std::cout << "\nInvalid menu entry! Try again!\n";
            }
        } while (!correct);

        // do we need to sort something??
        if (menu == 'b' or menu == 'c')
        {
            for (int head{ 0 }; head < arrSize; ++head)
            {
                for (int tail{ arrSize - 1 }; tail > head; --tail)
                {
                    // if we get there so either 'b' or 'c' menu was chosen
                    // so we choice sorting criteria
                    // 'b' - sort by tel, so element swap in BOTH array when tels[tail]<tels[head]
                    // not 'b' in this case - just 'c' - sort by mobs, so element swap in BOTH array when mobs[tail]<mobs[head]
                    if ((menu == 'b' ? tels[tail] < tels[head] : mobs[tail] < mobs[head]))
                    {
                        tmp = tels[head];
                        tels[head] = tels[tail];
                        tels[tail] = tmp;

                        tmp = mobs[head];
                        mobs[head] = mobs[tail];
                        mobs[tail] = tmp;

                    }
                }
            }
        }
        // display users after sorting or by 'a' menu request, if menu == 'x' do nothing
        if (menu != 'x')
        {
            std::cout << "Tel#\tMob#\n";
            for (int i{ 0 }; i < arrSize; ++i)
            {
                std::cout << tels[i] << '\t' << mobs[i] << '\n';
            }
        }

    } while (menu != 'x');

    return 0;
}