Re: Type errors in Haskell programming languages - Plz help

Hello.

The code is as follows - <-- Code starts --> entry :: [Char] -> [(Char,Int)] entry list = do t <- getGroups list mergeGroups t

getGroups :: [Char] -> [(Char,Int)] mergeGroups :: [(Char,Int)] -> [(Char,Int)] <-- Code Ends -->

You probably mean: entry list = let t = getGroups list in mergeGroups t or simpler entry = mergeGroups . getGroups Take a look at the instance Monad [ ] in the Prelude to see, why your program does not work. Ciao, Steffen