2016 Update

Task/Rep-string/Elixir/rep-string.elixir

@@ -0,0 +1,29 @@
+defmodule Rep_string do
+  def find(""), do: IO.puts "String was empty (no repetition)"
+  def find(str) do
+    IO.puts str
+    rep_pos = Enum.find(div(String.length(str),2)..1, fn pos ->
+      String.starts_with?(str, String.slice(str, pos..-1))
+    end)
+    if rep_pos && rep_pos>0 do
+      IO.puts String.duplicate(" ", rep_pos) <> String.slice(str, 0, rep_pos)
+    else
+      IO.puts "(no repetition)"
+    end
+    IO.puts ""
+  end
+end
+
+strs = ~w(1001110011
+          1110111011
+          0010010010
+          1010101010
+          1111111111
+          0100101101
+          0100100
+          101
+          11
+          00
+          1)
+
+Enum.each(strs, fn str -> Rep_string.find(str) end)