Inclusion exclusion concept- implementation

#1

sir here in your code why the inner loop which contain j runs till 7 ??
why do you suppose that each number has only 8 bits not more

#2

There are only 8 primes in our array, so we assign every prime a bit from 0 to 7.

#3

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#4

suppose the number of primes was 10, then we run a loop till 9 ?