2020年4月21日
[AtCoder Beginner Contest 163] **F - path pass i** (树型dfs，容斥定律)
摘要： [AtCoder Beginner Contest 163] F path pass i (树型dfs，容斥定律) 链接：https://atcoder.jp/contests/abc163/tasks/abc163_f Problem Statement We have a tree with N 阅读全文
posted @ 2020-04-21 17:37 茄子Min 阅读(500) 评论(1) 推荐(0)
AtCoder Beginner Contest 163 **E - Active Infants** （DP）
摘要： AtCoder Beginner Contest 163 E Active Infants （DP） Problem Statement There are NN children standing in a line from left to right. The activeness of th 阅读全文
posted @ 2020-04-21 15:38 茄子Min 阅读(274) 评论(0) 推荐(0)