September 2017 Update

2017-09-23 10:01:46 +02:00 · 2017-09-23 10:01:46 +02:00 · ba8067c3b7
commit ba8067c3b7
parent bba7bfd280
14570 changed files with 153136 additions and 63871 deletions
--- a/Task/Fibonacci-sequence/Haskell/fibonacci-sequence-9.hs
+++ b/Task/Fibonacci-sequence/Haskell/fibonacci-sequence-9.hs
@ -1 +1,9 @@
-fib = 0 : scanl (+) 1 fib
+import Data.List (foldl') --'
+
+fib :: Integer -> Integer
+fib n =
+  fst $
+  foldl' --'
+    (\(a, b) _ -> (b, a + b))
+    (0, 1)
+    [1 .. n]