AOJ solved_list

aoj_solved_list.rb

#!/usr/bin/ruby -Ku

require 'rexml/document'
require 'open-uri'

def getXMLDocument(user_id)
  uri = "http://judge.u-aizu.ac.jp/onlinejudge/webservice/user?id=#{user_id}"
  xml_source = open(uri).read
  sleep(1)
  return REXML::Document.new(xml_source)
end

doc = getXMLDocument('sho518')
doc.elements.each('user/solved_list/problem/id') do |pid|
  puts pid.text.gsub("\n", "")
end