RosettaCodeData/Task/Magic-8-ball/Haskell/magic-8-ball.hs
2023-07-01 13:44:08 -04:00

33 lines
794 B
Haskell

import System.Random (getStdRandom, randomR)
import Control.Monad (forever)
answers :: [String]
answers =
[ "It is certain"
, "It is decidedly so"
, "Without a doubt"
, "Yes, definitely"
, "You may rely on it"
, "As I see it, yes"
, "Most likely"
, "Outlook good"
, "Signs point to yes"
, "Yes"
, "Reply hazy, try again"
, "Ask again later"
, "Better not tell you now"
, "Cannot predict now"
, "Concentrate and ask again"
, "Don't bet on it"
, "My reply is no"
, "My sources say no"
, "Outlook not so good"
, "Very doubtful"]
main :: IO ()
main = do
putStrLn "Hello. The Magic 8 Ball knows all. Type your question."
forever $ do
getLine
n <- getStdRandom (randomR (0, pred $ length answers))
putStrLn $ answers !! n