{"published":"2025-08-26 09:30:00","author_url":"https://blog.hatena.ne.jp/kmjp/","url":"https://kmjp.hatenablog.jp/entry/2025/08/26/0930","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkmjp.hatenablog.jp%2Fentry%2F2025%2F08%2F26%2F0930\" title=\"AtCoder ABC #420 : G - sqrt(n\u00b2+n+X) - 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>","title":"AtCoder ABC #420 : G - sqrt(n\u00b2+n+X)","categories":["ARC"],"blog_url":"https://kmjp.hatenablog.jp/","width":"100%","provider_name":"Hatena Blog","blog_title":"kmjp's blog","image_url":null,"description":"F\u306e\u65b9\u304c\u96e3\u3057\u304b\u3063\u305f\u3002 https://atcoder.jp/contests/abc420/tasks/abc420_g","type":"rich","height":"190","provider_url":"https://hatena.blog","version":"1.0","author_name":"kmjp"}