Open evantianx opened 5 years ago
import Data.Char
isPangram :: String -> Bool
isPangram str = all (`elem` (map toLower str)) ['a'..'z']
import Data.Char
import Data.List
isPangram :: String -> Bool
isPangram str = null $ ['a'..'z'] \\ (map toLower str)
A pangram is a sentence that contains every single letter of the alphabet at least once. For example, the sentence
The quick brown fox jumps over the lazy dog
is a pangram, because it uses the lettersA-Z
at least once (case is irrelevant).Given a string, detect whether or not it is a pangram. Return True if it is, False if not. Ignore numbers and punctuation.