Add all the A tasks

2013-04-10 14:58:50 -07:00 · 2013-04-10 14:58:50 -07:00 · 051504d65b
commit 051504d65b
parent 2dd7375f96
1608 changed files with 18584 additions and 0 deletions
--- a/Task/Anonymous-recursion/Haskell/anonymous-recursion-2.hs
+++ b/Task/Anonymous-recursion/Haskell/anonymous-recursion-2.hs
@ -0,0 +1,6 @@
+import Data.Function (fix)
+
+fib :: Integer -> Maybe Integer
+fib n
+  | n < 0 = Nothing
+  | otherwise = Just $ fix (\f -> (\n -> if n > 1 then f (n-1) + f (n-2) else 1)) n