Lucy the Lisp Alien likes Numbers, they think some of them are "magnificent".
They ask you to help them write functions to make numbers more magnificent.
What Lucy thinks makes a number magnificent can change so the functions will need to be flexible.
To make a list of numbers into a list of more magnificent numbers you'll need to write a function
make-magnificent-maybe which takes a function to apply to the numbers and a list of numbers.
It should evaluate to a list of numbers which are more magnificent (according to the function provided)
(make-magnificent-maybe #'square '(1 2 3)) ; => (1 4 9) (make-magnificent-maybe #'1+ '(1 2 3)) ; => (2 3 4)
After (hopefully) making numbers more magnificent, Lucy wants to just see the numbers which are truly magnificent.
They definitely know that 1 is never magnificent so you'll need to just remove that.
But other than that Lucy changes their mind sometimes so again they'll give you a function which will tell you if a number is magnificent or not.
You'll need to write a function
only-the-best which takes a function and a list of numbers and returns only the best numbers (not
1 and not numbers that the function evaluates to true for).
(only-the-best #'evenp '(1 2 3 4 5)) ; => (3 5) (only-the-best #'oddp '(1 3 5)) ; => ()