{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F2022%2F07%2F27%2F075923\" title=\"AtCoder Beginner Contest 260 B - inamori\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","url":"https://inamori.hateblo.jp/entry/2022/07/27/075923","version":"1.0","author_url":"https://blog.hatena.ne.jp/inamori/","provider_name":"Hatena Blog","author_name":"inamori","blog_url":"https://inamori.hateblo.jp/","blog_title":"inamori\u2019s diary","categories":[],"title":"AtCoder Beginner Contest 260 B","height":"190","image_url":null,"published":"2022-07-27 07:59:23","provider_url":"https://hatena.blog","description":"https://atcoder.jp/contests/abc260/tasks/abc260_b let mut s = BTreeSet::<usize>::new(); set_from_vec(&s, &ids1, X); \u3053\u308c\u3060\u3068\u6012\u3089\u308c\u307e\u3059\u3002 40 | set_from_vec(&s, &ids1, X); | ^^ types differ in mutability\u3053\u308c\u306f\u3001 set_from_vec(&mut s, &ids1, X); \u3068\u3057\u306a\u3044\u3068\u3044\u3051\u307e\u305b\u3093\u3002 // Better Students Are Needed! #![allow(non_snake_case)] use\u2026","type":"rich"}