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author | Joe Zhao <ztuowen@gmail.com> | 2015-03-16 23:10:05 +0800 |
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committer | Joe Zhao <ztuowen@gmail.com> | 2015-03-16 23:10:05 +0800 |
commit | 11a5fd38018498a7b7feb0e392ac36003b0440ac (patch) | |
tree | 30cdac4d89f448304ee962c4345bd67d59571bfb /h15.hs | |
parent | 7f77f812350e8fb1687343faa17cf23d797883d5 (diff) | |
download | h99-11a5fd38018498a7b7feb0e392ac36003b0440ac.tar.gz h99-11a5fd38018498a7b7feb0e392ac36003b0440ac.tar.bz2 h99-11a5fd38018498a7b7feb0e392ac36003b0440ac.zip |
+12 +13 +14 +15
Diffstat (limited to 'h15.hs')
-rw-r--r-- | h15.hs | 11 |
1 files changed, 11 insertions, 0 deletions
@@ -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] |