RosettaCodeData/Task/Amb/Haskell/amb-4.hs

17 lines
367 B
Haskell

joins :: String -> String -> Bool
joins left right = last left == head right
example :: [String]
example =
[ unwords [w1, w2, w3, w4]
| w1 <- ["the", "that", "a"]
, w2 <- ["frog", "elephant", "thing"]
, w3 <- ["walked", "treaded", "grows"]
, w4 <- ["slowly", "quickly"]
, joins w1 w2
, joins w2 w3
, joins w3 w4 ]
main :: IO ()
main = print example