{"type":"rich","description":"\u958b\u59cb10\u5206\u3067C\u554f\u984c\u307e\u3067\u89e3\u3051\u305f\u306f\u826f\u3044\u304c\u3001\u305d\u3053\u3067\u5931\u901f\u2026\u3002 https://atcoder.jp/contests/arc154/tasks/arc154_c","provider_url":"https://hatena.blog","url":"https://kmjp.hatenablog.jp/entry/2025/09/15/0900","image_url":null,"categories":["ARC"],"title":"AtCoder ARC #154 : C - Roller","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkmjp.hatenablog.jp%2Fentry%2F2025%2F09%2F15%2F0900\" title=\"AtCoder ARC #154 : C - Roller - kmjp&#39;s blog\" 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","author_url":"https://blog.hatena.ne.jp/kmjp/","blog_title":"kmjp's blog","version":"1.0","published":"2025-09-15 09:00:00","width":"100%","provider_name":"Hatena Blog","author_name":"kmjp","blog_url":"https://kmjp.hatenablog.jp/"}