{"provider_url":"https://hatena.blog","author_name":"kmjp","image_url":null,"url":"https://kmjp.hatenablog.jp/entry/2026/05/12/0930","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkmjp.hatenablog.jp%2Fentry%2F2026%2F05%2F12%2F0930\" title=\"AtCoder ARC #219 : D - Grid Game - 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","type":"rich","categories":["ARC"],"title":"AtCoder ARC #219 : D - Grid Game","blog_url":"https://kmjp.hatenablog.jp/","version":"1.0","author_url":"https://blog.hatena.ne.jp/kmjp/","width":"100%","description":"\u3053\u3063\u3061\u3082\u30b5\u30af\u30c3\u3068\u89e3\u3051\u3066\u826f\u304b\u3063\u305f\u3002 https://atcoder.jp/contests/arc219/tasks/arc219_d","provider_name":"Hatena Blog","blog_title":"kmjp's blog","published":"2026-05-12 09:30:00"}