摘要: Educational Codeforces Round 84 (Rated for Div. 2) "D: Infinite Path" 【题意】:定义infinite path: i , p[i], p[p[i]], p[p[p[i]]] ......中所有颜色都相同,那么它就是一条infini 阅读全文
posted @ 2020-03-25 10:02 StungYep 阅读(174) 评论(0) 推荐(1) 编辑