My issue
I think the solution is 2^(number of zeros) - 2^(number of non-zero).
I am not confident about my approach as I cannot implement this due to large number and even I don’t know how to subtract a mod value from other mod value.
Is my approach is right?
If my approach is wrong then help me to know, how to subtract a mod value from another mod value.
Problem Link: Completion (Easy) Practice Coding Problem