Making Pyramid with C and C++ Program

The following program will show how to make a pyramid using C and C++. The  number of rows of the pyramid will be taken from the user and then it will be stored into a variable. Also two while loops are being used to build the pyramid.  

C and C++ pyramid program

#include<stdio.h>

#include<conio.h>

void main()

{

   int i = 0, j , n ;

   clrscr();

   printf("How many rows in pyramid:");

   scanf("%d",&n);

 while(i<n)

   {

             j=0;

             while(j<=i)

             {

               gotoxy(30+j,10+i);
               printf("%d",j);

               j++;

             }

             j=0;
             while(j<=i)

             {

                gotoxy(30-j,10+i); 

                printf("%d",j);
               j++;

             }

             i++;

             printf("\n");

   }

   getch();

}

Output