exampleSEAT.md

import Prelude hiding (map, length)
import qualified Prelude as P

Standard Library functions

In this exercise you should implement all functions using list comprehension or recursive style without employing any standard library function. Work this list top to bottom, as you might need some of the functions for later questions.

map

Implement the map function

map :: (a -> b) -> [a] -> [b]
map = P.map

length

Implement the length function, which returns the length of any arbitrary list.

length :: [a] -> Int
length [] = 0
length (x:xs) = 1 + length xs