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