{"type":"rich","image_url":null,"author_url":"https://blog.hatena.ne.jp/kmjp/","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkmjp.hatenablog.jp%2Fentry%2F2026%2F03%2F16%2F0900\" title=\"Codeforces Global Round 31 : D. Insolvable Disks - 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>","width":"100%","provider_name":"Hatena Blog","author_name":"kmjp","published":"2026-03-16 09:00:00","title":"Codeforces Global Round 31 : D. Insolvable Disks","blog_url":"https://kmjp.hatenablog.jp/","blog_title":"kmjp's blog","description":"\u304b\u306a\u308a\u826f\u3044\u51fa\u6765\u3060\u3063\u305f\u56de\u3002 https://codeforces.com/contest/2180/problem/D","provider_url":"https://hatena.blog","categories":["Codeforces"],"version":"1.0","url":"https://kmjp.hatenablog.jp/entry/2026/03/16/0900"}