From 11a5fd38018498a7b7feb0e392ac36003b0440ac Mon Sep 17 00:00:00 2001 From: Joe Zhao Date: Mon, 16 Mar 2015 23:10:05 +0800 Subject: +12 +13 +14 +15 --- h15.hs | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 h15.hs (limited to 'h15.hs') diff --git a/h15.hs b/h15.hs new file mode 100644 index 0000000..a8f84c1 --- /dev/null +++ b/h15.hs @@ -0,0 +1,11 @@ +import Control.Monad + +repli :: [a] -> [a] +repli xs n = concatMap (replicate n) xs + +repli' = flip $ concatMap . replicate + +repli'' xs n = xs >>= replicate n + +repli''' [] _ = [] +repli''' (x:xs) n = foldr (const (x:)) (repli xs n) [1..n] -- cgit v1.2.3-70-g09d2