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author | Joe Zhao <ztuowen@gmail.com> | 2015-03-31 23:41:55 +0800 |
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committer | Joe Zhao <ztuowen@gmail.com> | 2015-03-31 23:41:55 +0800 |
commit | a9abc1da41b56edbed00081800382e854d6698d0 (patch) | |
tree | 5265cc1c5296768438b67299afd59bcc57c58f0c /H14.hs | |
parent | 378f6303e8860b7bbca7dea787d584a6728cebf1 (diff) | |
download | h99-a9abc1da41b56edbed00081800382e854d6698d0.tar.gz h99-a9abc1da41b56edbed00081800382e854d6698d0.tar.bz2 h99-a9abc1da41b56edbed00081800382e854d6698d0.zip |
rename to H**, +31 +32 +33 +34 +35 +36
Diffstat (limited to 'H14.hs')
-rw-r--r-- | H14.hs | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -0,0 +1,10 @@ +import Control.Applicative + +dupli :: [a] -> [a] +dupli = concatMap (replicate 2) + +dupli' xs = concat [ [x,x] | x <- xs ] + +dupli'' = (<**> [id,id]) + +dupli''' = foldr ((.) <$> (:) <*> (:)) [] |