Циклический сдвиг одномерного массива

#include <iostream>
#include <ctime>
#include <conio.h>

using namespace std;

#define TAB '\t';

void main()
{
    srand(time(NULL));

    const int sz = 5;

    int alpha[sz];

    int tmp, m, b = 0;
    char snsr = 0;


    int psh = (setlocale(0, ""), cout << "Введите количество элементов для сдвига: ", cin >> psh, cout << endl, psh);

    for (int i = 0; i < sz; i++)
        cout << (alpha[i] = i) << TAB;

    while (snsr != 27)
    {

        snsr = getch();
        system("cls");
        if (snsr == 65 || snsr == 97) m = -1; // A
        if (snsr == 68 || snsr == 100) m = 1; // D

        if (m == -1)
        {
            for (int i = 0; i < psh; ++i)
            {
                for (int j = b; j < sz - 1; ++j)
                {
                    tmp = alpha[j];
                    alpha[j] = alpha[j + 1];
                    alpha[j + 1] = tmp;

                }
            }
        }
        else
        {
            for (int i = 0; i < psh; ++i)
            {
                for (int j = sz - 1; j > b; --j)
                {
                    tmp = alpha[j];
                    alpha[j] = alpha[j - 1];
                    alpha[j - 1] = tmp;
                }
            }
        }

        cout << endl;

        for (int i = 0; i < sz; i++)
            cout << alpha[i] << TAB;

    }

    cout << endl;
}