2016年4月15日
数据结构(线段树)：BZOJ 3126: [Usaco2013 Open]Photo
摘要： 3126: [Usaco2013 Open]Photo Description Farmer John has decided to assemble a panoramic photo of a lineup of his N cows (1 <= N <= 200,000), which, as 阅读全文
posted @ 2016-04-15 20:51 TenderRun 阅读(576) 评论(0) 推荐(1)
数位DP：SPOJ KPSUM - The Sum
摘要： KPSUM - The Sum One of your friends wrote numbers 1, 2, 3, ..., N on the sheet of paper. After that he placed signs + and - between every pair of adja 阅读全文
posted @ 2016-04-15 09:05 TenderRun 阅读(381) 评论(0) 推荐(0)