将一个数组逆序放到原来数组中

将一个数组逆序放到原来数组中

int main()
{
    int a[] = {1,2,3,4,5,6,7,8,9,10,11,12};
    int s = sizeof(a) / sizeof(a[0]);

    for (int i = 0; i < s / 2; i++)
    {
        int x = a[s - 1 - i];
        a[s - 1 - i] = a[i];
        a[i] = x;
    }

    for (int i = 0; i < s; i++)
    {
        printf("%d ", a[i]);
    }

    system("pause");
    return 0;
}