D1 finding maximum number of comparisons in a bubble sort ambiguous

Which question is the bubble sort one?

You can divide the number of items by 2 until the result is <1 and the number of times you divided it is the number of comparisons.
I usually just put it in my calculator and count.

it's because if you have 11 names, you'll have two sublists one with 6 names and one with 5 names and for the max number of comparisons you delete the list with 5 names. And you would always delete the list with less names for max comparisons.