摘要: [E - Family and Insurance](https://atcoder.jp/contests/abc309/tasks/abc309_e) ``` // https://atcoder.jp/contests/abc309/tasks/abc309_e // // 关键在于意识到, 阅读全文
posted @ 2023-07-09 11:57 O2iginal 阅读(25) 评论(0) 推荐(0)
摘要: [F - Box in Box](https://atcoder.jp/contests/abc309/tasks/abc309_f) ``` // https://atcoder.jp/contests/abc309/tasks/abc309_f // [unique + lower_bound 阅读全文
posted @ 2023-07-09 11:49 O2iginal 阅读(38) 评论(0) 推荐(0)