hollow diamond star pattern


#include 
int main()
{
    int i, j, n = 5;
    // Upper half
    for (i = 1; i <= n; i++)
    {
        for (j = n; j > i; j--)
            printf(" ");
        printf("*");
        if (i > 1)
        {
            for (j = 1; j <= (2 * i - 3); j++)
                printf(" ");
            printf("*");
        }
        printf("\n");
    }
    // Lower half
    for (i = n - 1; i >= 1; i--)
    {
        for (j = n; j > i; j--)
            printf(" ");
        printf("*");
        if (i > 1)
        {
            for (j = 1; j <= (2 * i - 3); j++)
                printf(" ");
            printf("*");
        }
        printf("\n");
    }
}


    *
   * *
  *   *
 *     *
*       *
 *     *
  *   *
   * *
    *