{"width":"100%","published":"2011-08-14 00:00:00","provider_name":"Hatena Blog","height":"190","description":"Problem 39\u3053\u306e\u554f\u984c\u306f\u30d4\u30bf\u30b4\u30e9\u30b9\u6570\u306e\u751f\u6210\u3092\u4f7f\u3048\u3070\u7c21\u5358\u3067\u3059\u3002 a = 2lmn b = l(m2 - n2) c = l(m2 + n2) p = 2lm(m + n) \u3053\u3053\u3067\u3001n' = m + n\u3068\u304a\u3051\u3070\u3001 p / 2 = lmn' (m, n') = 1 m n' m p / 2\u3092\u7d20\u56e0\u6570\u5206\u89e3\u3057\u30663\u3064\u306e\u7a4d\u306b\u5206\u89e3\u3057\u3066\u305d\u308c\u304c\u4e0a\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u7d44\u5408\u305b\u3092\u6570\u3048\u308c\u3070\u3088\u3044\u3067\u3059\u3002 \u3082\u3046\u5c11\u3057\u5de5\u592b\u3057\u307e\u3059\u30023\u3064\u306e\u7a4d\u306b\u5206\u89e3\u3059\u308b\u3068\u304d\u3001\u307e\u305al\u3092\u6c7a\u3081\u3066\u6b8b\u308a\u3092m\u3068n'\u306b\u5206\u914d\u3059\u308b\u306e\u3067\u3059\u304c\u30012\u306e\u56e0\u5b50\u306fm\u306b\u306e\u307f\u5206\u914d\u3055\u308c\u3066\u3001\u4ed6\u306e\u56e0\u5b50\u306f\u540c\u3058\u56e0\u5b50\u304c\u5168\u90e8\u540c\u3058\u65b9\u306b\u5206\u914d\u3055\u308c\u307e\u3059\u3002\u3059\u306a\u308f\u3061\u3001mn' = 23\u30fb32\u30fb53\u306a\u3089\u3001 (m, n'\u2026","type":"rich","blog_url":"https://inamori.hateblo.jp/","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/inamori/","categories":["Scala"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F20110814%2Fp1\" title=\"Scala\u3067Project Euler\uff0868\uff09 - 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>","image_url":null,"blog_title":"inamori\u2019s diary","title":"Scala\u3067Project Euler\uff0868\uff09","url":"https://inamori.hateblo.jp/entry/20110814/p1","version":"1.0","author_name":"inamori"}