2014年12月27日
(中等) POJ 2828 Buy Tickets , 逆序+线段树。
摘要： 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 @ 2014-12-27 23:25 WhyWhy。 阅读(264) 评论(0) 推荐(0) 编辑