From 1aebaea21cf70d65f948a7c3659473eaf5143d01 Mon Sep 17 00:00:00 2001
From: kballou <kballou@devnulllabs.io>
Date: Sat, 19 Mar 2016 02:24:44 -0600
Subject: Use hd/1 and tl/1 over Enum.at

---
 src/code/2/fib_itr.exs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/code/2/fib_itr.exs b/src/code/2/fib_itr.exs
index affd347..11c68cb 100644
--- a/src/code/2/fib_itr.exs
+++ b/src/code/2/fib_itr.exs
@@ -7,7 +7,7 @@ defmodule Fib do
     hd(acc)
   end
   defp compute_seq(n, i, acc) do
-    compute_seq(n, i+1, [Enum.at(acc, 0) + Enum.at(acc, 1) | acc])
+    compute_seq(n, i+1, [hd(acc) + (acc |> tl |> hd) | acc])
   end
 end
 
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