Hello, I am a new bee in haskell.
can someone explain to me what is the meaning of this line?
removable :: [Int] -> [Int]
removable xs = cv ls 1
where
ls = sort . fout (-1) $ xs
cv l@(c:cs) n
| c == n = cv cs (n+1)
| otherwise = l
cv [] n = []
I am trying to clean up a csv file