{"provider_name":"Hatena Blog","description":"\u554f\u984c\u6587: No.140 \u307f\u3093\u306a\u3067\u65c5\u884c - yukicoder Writer \u89e3\u8aac: yukicoder : No.140 \u307f\u3093\u306a\u3067\u65c5\u884c - kmjp's blog \u554f\u984c\u6982\u8981 $ N (\\leq 555)$\u7d44\u306e\u592b\u5a66 $ 2N $ \u3092\u30b0\u30eb\u30fc\u30d7\u5206\u3051\u3059\u308b\uff0e\u5404\u30b0\u30eb\u30fc\u30d7\u306b\u6700\u4f4e1\u7d44\u4ee5\u4e0a\u306f\u592b\u5a66\u306e\u4e21\u65b9\u304c\u3044\u308b\u3068\u3044\u3046\u6761\u4ef6\u3067\u30b0\u30eb\u30fc\u30d7\u5206\u3051\u3092\u3059\u308b\u3068\u304d\uff0c\u3042\u308a\u3046\u308b\u308f\u3051\u304b\u305f\u306e\u30d1\u30bf\u30fc\u30f3\u6570\u3092$ 10^9+7$\u3067\u5272\u3063\u305f\u3042\u307e\u308a\u3092\u6c42\u3081\u3088\uff0e \u89e3\u6cd5\u6982\u8981 \u592b\u3068\u59bb\u304c\u540c\u3058\u30b0\u30eb\u30fc\u30d7\u306b\u5165\u308b\u3088\u3046\u306a\u592b\u5a66 $ x $ \u7d44\u3068\uff0c\u592b\u3068\u59bb\u304c\u5225\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u5165\u308b\u3088\u3046\u306a\u592b\u5a66 $ (N-x) $ \u7d44\u3092\u5206\u3051\u3066\u8003\u3048\u308b\uff0e\u540c\u3058\u30b0\u30eb\u30fc\u30d7\u306b\u306a\u308b $ x $ \u7d44\u306e\u592b\u5a66\u306e\u9078\u3073\u65b9\u306f $ _\u2026","published":"2019-06-17 18:00:00","blog_title":"Noimin\u306eNoise","provider_url":"https://hatena.blog","url":"https://noimin.hatenablog.com/entry/2019/06/17/180000","version":"1.0","type":"rich","image_url":"https://chart.apis.google.com/chart?cht=tx&amp;chl=%7B%5Cdisplaystyle%20N%20%28%5Cleq%203%20%5Ctimes%2010%5E5%29%7D","title":"yukicoder No.140 \u307f\u3093\u306a\u3067\u65c5\u884c","author_url":"https://blog.hatena.ne.jp/noimin/","categories":["\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0 (\u554f\u984c\u89e3\u8aac)"],"width":"100%","author_name":"noimin","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnoimin.hatenablog.com%2Fentry%2F2019%2F06%2F17%2F180000\" title=\"yukicoder No.140 \u307f\u3093\u306a\u3067\u65c5\u884c - Noimin\u306eNoise\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://noimin.hatenablog.com/"}