On Fri, Sep 10, 2010 at 1:06 AM, Nils Schweinsberg <m...@n-sch.de> wrote:
> Something like this? > > import Data.List > > newList :: Int -> [[Int]] > newList n = myNub > [ l | l <- undefined -- not really sure how you want > -- to generate these lists :) > , sum l == sum [1..n] > ] > > myNub :: (Ord a) => [[a]] -> [[a]] > myNub = nubBy (\a b -> sort a == sort b) > > > - Nils > So I've checked out this code, and it doesn't compile on ghci. My version, without the "undefined" portion is(which still doesn't work): import Data.List newList :: Int -> [[Int]] newList n = myNub [ l | l <- [1..n], sum l == sum [1..n] ] myNub :: (Ord a) => [[a]] -> [[a]] myNub = nubBy (\a b -> sort a == sort b) Maybe there's something in the syntax that I'm not quite getting... \/\/
_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
