{"author_name":"inamori","blog_title":"inamori\u2019s diary","categories":[],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F2022%2F08%2F11%2F145431\" title=\"AtCoder Beginner Contest 254 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>","height":"190","blog_url":"https://inamori.hateblo.jp/","image_url":null,"title":"AtCoder Beginner Contest 254 B","width":"100%","url":"https://inamori.hateblo.jp/entry/2022/08/11/145431","provider_name":"Hatena Blog","description":"https://atcoder.jp/contests/abc254/tasks/abc254_b let mut b = Vec::with_capacity(a.len() + 1); b.set_len(a.len() + 1); \u3067Vec\u306e\u30b5\u30a4\u30ba\u3092\u5909\u3048\u3089\u308c\u305d\u3046\u3067\u3059\u304c\u3001 error[E0133]: call to unsafe function is unsafe and requires unsafe function or block --> ABC254B.rs:22:2 | 22 | b.set_len(a.len() + 1); | ^^^^^^^^^^^^^^^^^^^^^^\u2026","published":"2022-08-11 14:54:31","author_url":"https://blog.hatena.ne.jp/inamori/","version":"1.0","type":"rich","provider_url":"https://hatena.blog"}