摘要: [洛谷传送门](https://www.luogu.com.cn/problem/AT_abc225_g "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/abc225/tasks/abc225_g "AtCoder 传送门") 感觉是一种很新的建 阅读全文
posted @ 2023-06-05 22:15 zltzlt 阅读(29) 评论(0) 推荐(0)
摘要: [洛谷传送门](https://www.luogu.com.cn/problem/AT_abc281_h "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/abc281/tasks/abc281_h "AtCoder 传送门") 考虑设 $f_i$ 阅读全文
posted @ 2023-06-05 20:22 zltzlt 阅读(41) 评论(0) 推荐(0)