From a9abc1da41b56edbed00081800382e854d6698d0 Mon Sep 17 00:00:00 2001 From: Joe Zhao Date: Tue, 31 Mar 2015 23:41:55 +0800 Subject: rename to H**, +31 +32 +33 +34 +35 +36 --- H14.hs | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 H14.hs (limited to 'H14.hs') diff --git a/H14.hs b/H14.hs new file mode 100644 index 0000000..e7ad73d --- /dev/null +++ b/H14.hs @@ -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 ((.) <$> (:) <*> (:)) [] -- cgit v1.2.3-70-g09d2