Returning in the function

[nickzuck]

What is the only line in the function doing I am not able to understand that .....It will be great if you please explain me the concept of OR in the RETURN

[snadahalli]

@nickzuck Please include a link to the file/program you are talknig about.

[nickzuck]

https://github.com/snadahalli/cprograms/blob/master/subsets.c

In the function promising