diff options
Diffstat (limited to 'p11.hs')
-rw-r--r-- | p11.hs | 15 |
1 files changed, 0 insertions, 15 deletions
@@ -1,15 +0,0 @@ -import Control.Arrow -import Data.List - -data ListItem a = Single a | Multiple a Int - deriving (Show) - -encode :: Eq a => [a] -> [(a,Int)] -encode xs = map (head &&& length) $ group xs - -encodeModified :: Eq a => [a] -> [ListItem a] -encodeModified = map helper . encode - where - helper (a,1) = Single a - helper (a,c) = Multiple a c - |