 -- Table structure for table `icpc2013_scoreboard`
 --
 
+DROP TABLE IF EXISTS `icpc2013_scoreboard`;
 CREATE TABLE IF NOT EXISTS `icpc2013_scoreboard` (
   `team_id` int(11) NOT NULL,
   `rank` int(11) NOT NULL DEFAULT '1',

-- Table structure for table `icpc2013_problems`
--

CREATE TABLE IF NOT EXISTS `icpc2013_problems` (
  `problem_id` int(11) NOT NULL,
  `problem_letter` char(10) NOT NULL, 

-- Table structure for table `icpc2013_top_coder`
--

DROP TABLE IF EXISTS `icpc2013_top_coder`;
CREATE TABLE IF NOT EXISTS `icpc2013_top_coder` (
  `university_name` varchar(150) NOT NULL,
  `coach_tcname` varchar(50) NOT NULL,
