表:Stadium +---------------+---------+ | Column Name | Type | +---------------+---------+ | id | int || visit_date | date | | people | int | +---------------+------
链接: http://acm.hdu.edu.cn/showproblem.php?pid=3047 题目: Problem Description In 12th Zhejiang College Students Games 2007, there was a new stadium built in Zhejiang Normal University. It was