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author | Joe Zhao <ztuowen@gmail.com> | 2015-03-17 11:05:29 +0800 |
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committer | Joe Zhao <ztuowen@gmail.com> | 2015-03-17 11:05:29 +0800 |
commit | a9ee47b61558efe09aee23f5671aabd0c3747e8a (patch) | |
tree | 52426053545a54514d39300e2117bdda14a9b1ef /p11.hs | |
parent | 11a5fd38018498a7b7feb0e392ac36003b0440ac (diff) | |
download | h99-a9ee47b61558efe09aee23f5671aabd0c3747e8a.tar.gz h99-a9ee47b61558efe09aee23f5671aabd0c3747e8a.tar.bz2 h99-a9ee47b61558efe09aee23f5671aabd0c3747e8a.zip |
p -> h
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 - |