Hi,
This is a really good catch! I think that for Selection Sort, the worst case scenario is still 4 swaps, but you’re right that an array in perfect descending order happens not to be the worst case scenario for Selection Sort.
An array like this: [5, 3, 1, 2, 4] - will still give you 4 swaps in Selection Sort.
I’ll have to clarify this in the next version. Thank you!
-Jay