My doubt is solved. No need to reply anymore.
I think you have to use a single ampersand (&) to denote the bitwise operation of checking if the last bit is 1 => the number is odd
If you use double like && , it’s a normal logical operation where non zero numbers are 1 
Oops, I just realised how stupid I am.
Happens to all of us 
However I had a doubt, on discuss your name is shown as “Rashmi Jain” while on your profile it’s “Aditya Jain”.
What magic is this XD