Http://ide.codingblocks.com/#/s/16420

[S18LPC-OL0072 (Aulick Sah)]

http://ide.codingblocks.com/#/s/16420

Can anyone tell me what’s the error is about?

[vishal (Vishal Bachchas)]

https://ide.codingblocks.com/s/33533
use 2*n not 2n