From 3ae71a6adaf7cb9249a1a610c228e8ac84afab6d Mon Sep 17 00:00:00 2001
From: Joe Zhao <ztuowen@gmail.com>
Date: Wed, 18 Mar 2015 15:09:18 +0800
Subject: +20 +21 +22 +23 +24 +25

---
 h21.hs | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 h21.hs

(limited to 'h21.hs')

diff --git a/h21.hs b/h21.hs
new file mode 100644
index 0000000..c23b31b
--- /dev/null
+++ b/h21.hs
@@ -0,0 +1,2 @@
+insertAt :: a -> [a] -> Int -> [a]
+insertAt x xs c = let k = c-1 in take k xs ++ x:(drop k xs)
-- 
cgit v1.2.3-70-g09d2