# HG changeset patch
# User Nattee Niparnan <nattee@gmail.com>
# Date 2014-08-14 10:56:59
# Node ID ce30b9a1bad91475123a515efc6a0b669a0e6ffd
# Parent  39412152581401729164a8bb3d4919c97234a41e

add float value checking template with epsilon

diff --git a/templates/check.float b/templates/check.float
new file mode 100755
--- /dev/null
+++ b/templates/check.float
@@ -0,0 +1,66 @@
+#!/usr/bin/env ruby
+
+problem_home = ENV['PROBLEM_HOME']
+require "#{problem_home}/script/test_dsl.rb"
+
+if ARGV.length < 2
+  puts "Usage: check <language> <test-number> [<output-file>]"
+  exit(0)
+end
+
+language = ARGV[0]
+test_num = ARGV[1].to_i
+if ARGV.length >= 3
+  output_file_name = ARGV[2]
+else
+  output_file_name = "output.txt"
+end
+
+load "#{problem_home}/test_cases/all_tests.cfg"
+problem = Problem.get_instance
+
+output_file = File.new(output_file_name, "r")
+answer_file = File.new("#{problem_home}/test_cases/#{test_num}/answer-#{test_num}.txt")
+result_file = File.new("check_result", "w")
+
+output_file_content = output_file.read
+answer_file_content = answer_file.read
+
+report_correct = lambda {
+  result_file.write "Correct\n"
+  result_file.write problem.get_score(test_num)
+  result_file.write "\n"  
+  result_file.close
+  exit(0)
+}
+
+report_wrong = lambda {
+  result_file.write "Incorrect\n"
+  result_file.write "0\n"
+  result_file.close
+  exit(0)
+}
+
+##################
+# Your code here #
+##################
+
+########### THIS IS FOR CHECKING FLOAT with EPSILON error ##########
+
+EPSILON = 0.000001
+
+out_items = output_file_content.split
+ans_items = answer_file_content.split
+
+if out_items.length != ans_items.length
+  report_wrong.call
+else
+  out_items.length.times do |i|
+    out_value = out_items[i].to_f
+    ans_value = ans_items[i].to_f
+    if (out_value - ans_value).abs > EPSILON * [out_value.abs,ans_value.abs].max
+      report_wrong.call
+    end
+  end
+  report_correct.call
+end