Your answer is wrong. He says "Just given the raw zipped data and no size metadata".
The page calculates it using exactly that size metadata he excluded.
The question, as I see it, is if that size metadata (the 4.3 gigs at the bottom) can be determined from the zip file without unzipping a rather lot of data.
It would be interesting if someone who knew the exact details of the zip format could comment.
The page calculates it using exactly that size metadata he excluded.
The question, as I see it, is if that size metadata (the 4.3 gigs at the bottom) can be determined from the zip file without unzipping a rather lot of data.
It would be interesting if someone who knew the exact details of the zip format could comment.