You created a list of pairs, which has O(n) search time. You could use a set to give you O(1) search time--although, for three elements it probably doesn't matter.

I have the same question, but I still haven't figured it out. What do you mean by "the output is inside a loop"?

Never mind I get it

My favorite solution, very declarative

Very clean!

I like zip_longest. Didn't know about that method

I like the use of types:

type Level = Int
type Score = Int

I wrote a mini fractions libary before I realized the pattern haha

My favorite solution

I agree. That's how I wrote mine.

Good descriptive naming

You can use the cons operator (:) instead of ++, because those arrays have size 1

intercalate " " is equivalent to unwords from the prelude--you could make your code a littlemore concise that way

I like that you wrote your own higher order function (both). Nicely done!