Code not working due to j not having correct scope

[S18LPC-OL0018 (Gaurav Singhal)]

http://ide.codingblocks.com/#/s/16378

please see this code and help me.

[Neelam1996 (Neelam Sharma)]

You can go through this code, I have commented your mistake in code
https://ide.codingblocks.com/#/s/16441