摘要: 链接: https://codeforces.com/contest/1234/problem/C 题意: You are given a system of pipes. It consists of two rows, each row consists of n pipes. The top 阅读全文
posted @ 2019-10-02 23:49 YDDDD 阅读(483) 评论(3) 推荐(0)
摘要: 链接: https://codeforces.com/contest/1234/problem/B2 题意: The only difference between easy and hard versions are constraints on n and k. You are messagin 阅读全文
posted @ 2019-10-02 21:10 YDDDD 阅读(389) 评论(0) 推荐(0)
摘要: 链接: https://codeforces.com/contest/1234/problem/A 题意: You are both a shop keeper and a shop assistant at a small nearby shop. You have n goods, the i 阅读全文
posted @ 2019-10-02 20:58 YDDDD 阅读(483) 评论(0) 推荐(0)
摘要: 链接: https://www.acwing.com/problem/content/289/ 题意: 有一个树形的水系,由 N 1 条河道和 N 个交叉点组成。 我们可以把交叉点看作树中的节点,编号为 1~N,河道则看作树中的无向边。 每条河道都有一个容量,连接 x 与 y 的河道的容量记为 c( 阅读全文
posted @ 2019-10-02 19:23 YDDDD 阅读(151) 评论(0) 推荐(0)
摘要: 链接: https://www.acwing.com/problem/content/288/ 题意: 学校实行学分制。 每门的必修课都有固定的学分,同时还必须获得相应的选修课程学分。 学校开设了 N 门的选修课程,每个学生可选课程的数量 M 是给定的。 学生选修了这 M 门课并考核通过就能获得相应 阅读全文
posted @ 2019-10-02 11:41 YDDDD 阅读(183) 评论(0) 推荐(0)