[split] Lines of Code

[mdijkens]

Your code is more efficient and better in what it does.

Still (fully depending on functional view of the code at that place) I would put them on 1 line if managing groups & groupsizes is not the main focus of the function it is in; it might be some less important housekeeping.
Then I would prefer to only occupy one line on my screen

If this was in a function with the main responsibility of managing groups & groupsizes, I would put them on 3 separate lines