From 378f6303e8860b7bbca7dea787d584a6728cebf1 Mon Sep 17 00:00:00 2001
From: Joe Zhao <ztuowen@gmail.com>
Date: Thu, 19 Mar 2015 16:49:40 +0800
Subject: +28

---
 h28.hs | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 h28.hs

(limited to 'h28.hs')

diff --git a/h28.hs b/h28.hs
new file mode 100644
index 0000000..0ff75cc
--- /dev/null
+++ b/h28.hs
@@ -0,0 +1,11 @@
+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)
+
-- 
cgit v1.2.3-70-g09d2