C program to print mirrored half diamond star pattern

#include <stdio.h>
int main()
{
    int x = 0,y = 0;
    unsigned int coloumn = 0;
    unsigned int star = 0;
    unsigned int space = 0;
    printf("Enter the number of coloumn = ");
    scanf("%u",&coloumn);
    space = (coloumn - 1);
    for(x=1; x < (coloumn*2) ; ++x)
    {
        // Print spaces
        for(y=0; y < space; ++y)
        {
            printf(" ");
        }
        // Print star
        for(y=0; y < star; ++y)
        {
            printf("*");
        }
        // Print new line
        printf("\n");
        if(x<coloumn)
        {
            ++star;
            --space;
        }
        else
        {
            ++space;
            --star;
        }
    }
    return 0;
}

Output:

Enter the number of coloumn = 10

        *

       **

      ***

     ****

    *****

   ******

  *******

 ********

*********

 ********

  *******

   ******

    *****

     ****

      ***

       **

        *