I believe the only parts missing are the definitions of constants for the cost of a day and the various discounts. Perhaps also consider using the ternary operator in the discountRate function.

Correct, it shouldn't really show up in the description when you are solving in a different language... But it is quite common that you see something like "if string is empty return false (null in null-lang, 0 in 0-lang)" etc.

Oh, i see.. jfyi i was able to solve it without obviously having no idea of Haskell. not that it's not neccessary to not leave it as is-it may not, is all

Haskell is a computer programming language, the comments are to exclude the Haskell implementation from certain attributes mentioned.

this dosen't really explain much

The DNA of a Haskell has been discovered not to be a string but a list of bases, but better research is still required.

It's been a while since attending bio class, what exactly is the 'Except Haskell' part intelling?

Switch is not best practice. It looks prettier sure, but its actually slower than a simple if statement. Not by a lot though.

ah + maze'n !!!

Beautifully done!

The very definition of concise 🎱