2016年1月15日
Codeforces Round #339 (Div. 2) A
摘要： DescriptionProgrammer Rostislav got seriously interested in the Link/Cut Tree data structure, which is based on Splay trees. Specifically, he is now s... 阅读全文
posted @ 2016-01-15 21:50 樱花落舞 阅读(305) 评论(0) 推荐(0) 编辑