Another solution for not so easy maths

#1

Is there any way to solve this question other than Inclusion-Exclusion? As this question is provided under Bitmasking, so there might be an easier way other than adding to answer if subset length is odd and subtracting if subset length is even

#3

I don’t think any other solution exists, because of the constraints are too large. Inclusion-Exclusion is the easiest solution we can think of.

#4

Hey Abhineet, as you are not responding to this thread, I am marking your doubt as Resolved for now. Re-open it if required.

Please mark your doubts as resolved in your course’s “Ask Doubt” section, when your doubt is resolved.