problem fibonacci solved in scala

Author: nanne007

solutions/scala/Fibonacci.scala

@@ -0,0 +1,7 @@
+object Fibonacci {
+  // accept a pos, starting with 1
+  def apply(pos: Int) = {
+    if (pos < 0) throw new IllegalArgumentException
+    (1 until pos).foldLeft((0, 1))((t, _) => (t._2, t._1 + t._2))._1
+  }
+}