Add 1147_ruby

Author: junk0612

AizuOnlineJudge/ProblemSets11/1147_ICPC_Score_Totalizer_Software/main.rb

@@ -0,0 +1,4 @@
+until (n = gets.to_i).zero?
+  array = n.times.map {gets.to_i}
+  puts (array.reduce {|sum, n| sum + n} - array.max - array.min) / (n - 2)
+end