1 files changed, 11 insertions, 0 deletions
diff --git a/H28.hs b/H28.hs
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index 0000000..0ff75cc
--- /dev/null
+++ b/H28.hs
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+import Data.List
+import Data.Ord (comparing)
+import Data.Function
+
+lsort :: [[a]] -> [[a]]
+lsort = sortBy (comparing length)
+
+lsort' = sortBy (\xs ys -> compare (length xs) (length ys))
+
+lsort'' = sortBy (compare `on` length)
+