From 4b5bdac9bd93ac97e3f99a14d3d28a70cd33607c Mon Sep 17 00:00:00 2001
From: Igor Pashev <pashev.igor@gmail.com>
Date: Thu, 14 Nov 2013 20:06:53 +0400
Subject: Scala

---
 gcd.scala | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 gcd.scala

diff --git a/gcd.scala b/gcd.scala
new file mode 100644
index 0000000..69f86a6
--- /dev/null
+++ b/gcd.scala
@@ -0,0 +1,24 @@
+/*
+ Synopsis:
+ 
+ # scalac gcd.scala
+ # scala gcd 11 22 33 121
+
+ // prints 11
+
+*/
+object gcd {
+    def gcd2(a: Int, b: Int): Int = b match {
+        case 0 => a
+        case _ => gcd2(b, a % b)
+    }
+
+    def main(args: Array[String]) {
+        try {
+            val numbers = args map Integer.parseInt
+            println(numbers.foldRight(0)((a, b) => gcd2(a, b)))
+        } catch {
+           case e: NumberFormatException => println("Not a number")
+        }
+    }
+}
-- 
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