#include<stdio.h>
#include<conio.h>
void main()
{
int i,n,j;
clrscr();
printf("\n Please Give The Value of N:  ");
scanf("%d",&n);
for(i=0;i<n;i++)
{
for(j=0;j<n-i;j++)
printf("  ");
for(j=i;j>=0;j--)
printf(" %d",j);
for(j=1;j<=i;j++)
printf(" %d",j);
printf("\n");
}
getch();
}


--------------------------------- OUTPUT ---------------------------------




Please Give The Value of N:  9


                      0
                 1 0 1
               2 1 0 1 2
             3 2 1 0 1 2 3
              4 3 2 1 0 1 2 3 4
         5 4 3 2 1 0 1 2 3 4 5
       6 5 4 3 2 1 0 1 2 3 4 5 6
     7 6 5 4 3 2 1 0 1 2 3 4 5 6 7
   8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8