题目链接：http://poj.org/problem?id=1275 Description A supermarket in Tehran is open 24 hours a day every day and needs a number of cashiers to fit its need. The supermarket manager has hired you to he

一家每天24小时营业的店，在不同小时需不同数量的店员，现有n(≤1000)个人来应聘，第i个人会从 sti st_i开始连续工作8小时，求最少雇佣人数。