question13.c

/*
Write a program to draw the following patterns:

A B C D C B A 
A B C   C B A 
A B       B A 
A           A 

*/

#include<stdio.h>
int main()
{
    int i,j,k;
    for(i=1;i<=4;i++)
    {
        k='A';
        for(j=1;j<=7;j++)
       {
          if(j<=5-i||j>=3+i)
          {
             printf("%c ", k);
             j<4?k++:k--;
          }
          
          else
          {
                printf("  ");
                if(j==4)
                k--;
          }
          
        }
         printf("\n");
    }
    return 0;
}