diff options
Diffstat (limited to 'h9.hs')
-rw-r--r-- | h9.hs | 13 |
1 files changed, 0 insertions, 13 deletions
@@ -1,13 +0,0 @@ -pack :: (Eq a) => [a] -> [[a]] -pack = foldr elim [] - where elim e [] = [[e]] - elim e p@(n:ns) - | e == head n = (e:n):ns - | otherwise = [e]:p - -pack' (x:xs) = let (first,rest) = span (==x) xs - in (x:first) : pack' rest -pack' [] = [] - -pack'' (x:xs) = (x:takeWhile (==x) xs):(pack'' $ dropWhile (==x) xs) -pack'' [] = [] |