From df20ad0139a2fc86722d8db73df6e3664da4f011 Mon Sep 17 00:00:00 2001
From: Alpha Chen <alpha@kejadlen.dev>
Date: Tue, 10 Dec 2019 12:32:23 -0800
Subject: [PATCH] [2019][ruby] make computer.rb runnable

---
 2019/ruby/computer.rb | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/2019/ruby/computer.rb b/2019/ruby/computer.rb
index a5bc7ca..9c0e7ac 100644
--- a/2019/ruby/computer.rb
+++ b/2019/ruby/computer.rb
@@ -148,3 +148,7 @@ class Computer
     end
   end
 end
+
+if __FILE__ == $0
+  Computer.from(T.cast(ARGF, IO).read || "").run
+end