Nothing.
- Do not use
BigInteger: av has only 51 bits.longis enough. - Return
longinstread ofintfor av. - Add comments.
- Remove legacy conversion codes that has not be cleared.
Nothing.
- Do not use `BigInteger`: av has only 51 bits. `long` is enough.
- Return `long` instread of `int` for av.
- Add comments.
- Remove legacy conversion codes that has not be cleared.