2016年5月26日
poj 2828 Buy Tickets 线段树
摘要： 题意/Description： Railway tickets were difficult to buy around the Lunar New Year in China, so we must get up early and join a long queue… The Lunar New 阅读全文
posted @ 2016-05-26 16:58 猪都哭了 阅读(110) 评论(0) 推荐(0)