how to draw a pattern of hollow diamond shape

             the pattern is:

                               *

                            *    *

                         *         *

                      *               *

                             *   * 

                               *

Answers

•   
  

  Let’s first print

     *   
    *    
   *     
  *      
   *     
    *    
     *  
  

  You can easily observe here that a star will get printed if the sum of line number and the position of start is 5 (upper half) or their difference is 3 (lower half).

  #include <stdio.h>
  
  int main()
  {
    int i,j;
    for(i=1; i<=7; i++)
    {
      for(j=1; j<=7; j++)
      {
        if((i-j==3) || (j+i==5))
          printf("*");
        else
          printf(" ");
      }
      printf("\n");
    }
    return 0;
  }
  

  Now after this you can observe that the sum of the positions of the stars at right and the stars at left is 8. So, just print a star at a position 8-position of the left star.

  #include <stdio.h>
  
  int main()
  {
    int i,j;
    for(i=1; i<=7; i++)
    {
      for(j=1; j<=7; j++)
      {
        if((i-j==3) || (j+i==5) || (i-(8-j)==3) || ((8-j)+i==5))
          printf("*");
        else
          printf(" ");
      }
      printf("\n");
    }
    return 0;
  }
  

  This is just one of the ways to print this pattern. You can think of many more ways.

  
  
• Thank u very much sir!!!!!!!!!! I'm glad if u read this comment....sir,please add a online compiler in it and also python3.x
  - h_duddu

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•    emmausa
  

  I really like the information you share. I learned a lot of new and useful knowledge from your post. fnf
  

  
  

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