摘要: e题的题意又理解错了( ## E. Family and Insurance [E - Family and Insurance (atcoder.jp)](https://atcoder.jp/contests/abc309/tasks/abc309_e) ### 题意 给定一棵或者若干棵树,以及 阅读全文
posted @ 2023-07-09 19:47 wuyoudexian 阅读(19) 评论(0) 推荐(0)
摘要: vp时c题用自已的方法过了,赛后补下正解 ## C.Place for a Selfie [Problem - C - Codeforces](https://codeforces.com/contest/1805/problem/C) ### 题意 给定一些抛物线和过原点的直线,对于每个抛物线,是 阅读全文
posted @ 2023-07-09 01:34 wuyoudexian 阅读(14) 评论(0) 推荐(0)