{"type":"rich","image_url":null,"blog_url":"https://inamori.hateblo.jp/","published":"2009-07-28 00:00:00","categories":["\u6570\u5b66","Python"],"provider_name":"Hatena Blog","description":"\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30aa\u30a4\u30e9\u30fc http://projecteuler.net/ Q235. u(k) = (900 - 3k)rk\u3068\u3057\u3066\u3001s(n) = u(0) + ... + u(n)\u3068\u3057\u305f\u3068\u304d\u3001s(5000) = -600,000,000,000\u3068\u306a\u308br\u3092\u5c0f\u6570\u70b9\u4ee5\u4e0b12\u6841\u307e\u3067\u6c42\u3081\u3088\u3002 \u3061\u3087\u3063\u3068\u63b2\u793a\u677f\u3092\u8997\u3044\u305f\u3089\u3001\u8ab0\u3082u\u306e\u8a08\u7b97\u3092\u3057\u3066\u3044\u306a\u304f\u3066\u9a5a\u3044\u305f\u3002\u89e3\u3092\u6c42\u3081\u308b\u306e\u306f\u3001\u4e8c\u5206\u63a2\u7d22\u3067\u3002","url":"https://inamori.hateblo.jp/entry/20090728/p1","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F20090728%2Fp1\" title=\"Project Euler 235 - inamori\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"Project Euler 235","author_name":"inamori","height":"190","provider_url":"https://hatena.blog","blog_title":"inamori\u2019s diary","author_url":"https://blog.hatena.ne.jp/inamori/","version":"1.0"}