Print Dimond using C Language

#include<stdio.h>

#include<math.h>

void main()

{

            int i=0,j=0,num=3;

            for(i=-num;i<=num;i++)

            {

                        for(j=-num;j<=num;j++)

                        if(abs(i)+abs(j)<=num)

                        {

                                    printf("*");

                        }

                        else

                        {

                                    printf(" ");

                        }

      printf("\n");

            }

}

Output of the program: