+20 +21 +22 +23 +24 +25

1 files changed, 7 insertions, 0 deletions

diff --git a/h20.hs b/h20.hs
new file mode 100644
index 0000000..670edf6
--- /dev/null
+++ b/h20.hs
@@ -0,0 +1,7 @@
+import Control.Arrow
+removeAt :: Int -> [a] -> [a]
+removeAt n xs = (take (n-1) xs) ++ (drop n xs)
+
+removeAtT :: Int -> [a] -> (a,[a])
+removeAtT 1 (x:xs) = (x,xs)
+removeAtT n (x:xs) = (fst &&& ((x:).snd)) $ removeAtT (n-1) xs