{"author_name":"kmjp","published":"2026-10-06 09:00:00","height":"190","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkmjp.hatenablog.jp%2Fentry%2F2026%2F10%2F06%2F0900\" title=\"AtCoder Regular Contest 231 : A - Two Dimensional Invader - 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>","provider_url":"https://hatena.blog","blog_title":"kmjp's blog","image_url":null,"description":"\u3042\u307e\u308a\u632f\u308b\u308f\u305a\u3002 https://atcoder.jp/contests/arc231/tasks/arc231_a","provider_name":"Hatena Blog","title":"AtCoder Regular Contest 231 : A - Two Dimensional Invader","author_url":"https://blog.hatena.ne.jp/kmjp/","version":"1.0","width":"100%","url":"https://kmjp.hatenablog.jp/entry/2026/10/06/0900","categories":["ARC"],"blog_url":"https://kmjp.hatenablog.jp/"}