习题8-3 数组循环右移

int ArrayShift(int a[], int n, int m)
{
    int at[MAXN];

    m = m % n;
    for (int i = 0; i < m; i++)
    {
        at[i] = a[n - m + i];
    }
    for (int i = m; i < n; i++)
    {
        at[i] = a[i - m];
    }
    for (int i = 0; i < n; i++)
    {
        a[i] = at[i];
    }
}