2018年2月16日
poj 1275 Cashier Employment - 差分约束 - 二分答案
摘要： 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 help 阅读全文
posted @ 2018-02-16 10:38 阿波罗2003 阅读(197) 评论(0) 推荐(0)