Pattern Printing Using C Language

In this program, the pattern as shown below will be displayed.

1 2

3

4 5

6

7 8

9

10 11

The upper range of the pattern ( as per the above pattern it is 11) will be given by user.

#include< stdio.h>
void main()
{
 int i=1,j,n,x=1;
 clrscr();
 printf("\nEnter the Last Number of the series:");
 scanf("%d",&n);

         for(;;)
         {
           
            for(j=0;j<=i;j++)
            {
   printf(" %d",x);
   x++;
}
   if(i==1)
   i=0;
   else
   i=1;
   if(x >n)
   break;
   printf("\n");
}
getch();
}