{"provider_name":"Hatena Blog","url":"https://186.hatenablog.com/entry/20080706/1215322472","blog_url":"https://186.hatenablog.com/","version":"1.0","type":"rich","title":" \u5206\u5e03\u306e\u95a2\u9023\u6027","author_name":"smoking186","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2F186.hatenablog.com%2Fentry%2F20080706%2F1215322472\" title=\" \u5206\u5e03\u306e\u95a2\u9023\u6027 - 186 @ hatenablog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"186 @ hatenablog","provider_url":"https://hatena.blog","height":"190","author_url":"https://blog.hatena.ne.jp/smoking186/","published":"2008-07-06 14:34:32","image_url":null,"width":"100%","categories":["math","\u78ba\u7387\u30fb\u7d71\u8a08"],"description":"\u30e1\u30e2. \u30d1\u30e9\u30e1\u30fc\u30bf\u304c(k,n-k+1)\u306e\u30d9\u30fc\u30bf\u5206\u5e03\u3092\u8003\u3048\u308b. \u78ba\u7387\u5bc6\u5ea6\u95a2\u6570\u306f\u3067\u3042\u308b. \u304c\u6210\u7acb\u3059\u308b. binom\u51fa\u3059\u306e\u304c\u9762\u5012\u81ed\u3044\u306e\u3067\u9ad8\u6821\u306e\u8a18\u6cd5\u3067. (\u90e8\u5206\u7a4d\u5206\u3092\u9806\u6b21\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u5f97\u3089\u308c\u308b.)"}