{"blog_url":"https://mayokoex.hatenablog.com/","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmayokoex.hatenablog.com%2Fentry%2F2016%2F03%2F22%2F234510\" title=\"AtCoder Beginner Contest 003 D - AtCoder\u793e\u306e\u51ac - mayoko\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>","blog_title":"mayoko\u2019s diary","title":"AtCoder Beginner Contest 003 D - AtCoder\u793e\u306e\u51ac","type":"rich","provider_url":"https://hatena.blog","description":"\u554f\u984c abc003.contest.atcoder.jp \u89e3\u6cd5 \u3061\u3087\u3063\u3068\u30a2\u30db\u306a\u65b9\u6cd5\u3067\u901a\u3057\u3066\u3057\u307e\u3063\u305f\u3093\u3067\u3059\u304c, \u5f8c\u3067\u7d39\u4ecb\u3057\u307e\u3059\u3002\u307e\u305a\u524d\u63d0\u3068\u3057\u3066, \u3053\u306e\u554f\u984c\u306f\u7d50\u5c40\u300cX*Y \u306e\u9577\u65b9\u5f62\u3092\u4f5c\u308b\u3088\u3046\u306b D+L \u500b\u306e\u7269\u4f53\u3092\u914d\u7f6e\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u901a\u308a\u3042\u308b\u306e\u304b\u300d\u3068\u3044\u3046\u306e\u304c\u6c42\u3081\u3089\u308c\u308c\u3070, \u3042\u3068\u306f\u305d\u308c\u306b comb[D+L][D] * (R-X+1) * (C-Y+1) \u3092\u304b\u3051\u308b\u3060\u3051\u3067\u554f\u984c\u304c\u89e3\u3051\u307e\u3059\u3002\u60f3\u5b9a\u89e3\u306f\u591a\u5206\u5305\u9664\u539f\u7406\u3067\u3059\u3002 \u4f8b\u3048\u3070\u300cX*Y \u306e\u9577\u65b9\u5f62\u306e\u4e0a\u306e\u8fba\u306b\u7d76\u5bfe\u9802\u70b9\u304c\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u300d\u306a\u3069\u3092\u8003\u3048\u3066, \u300cX*Y \u306e\u9577\u65b9\u5f62\u306e\u597d\u304d\u306a\u3068\u3053\u308d\u306b\u9802\u70b9\u3092\u4e26\u3079\u305f\u5834\u5408\u300d\u304b\u3089\u5f15\u304f\u3053\u3068\u3092\u8003\u3048\u307e\u3059\u3002\u305f\u3060, \u3053\u308c\u3060\u3068\u300cX*Y \u306e\u9577\u65b9\u5f62\u306e\u4e0a\u3068\u4e0b\u306e\u8fba\u2026","url":"https://mayokoex.hatenablog.com/entry/2016/03/22/234510","version":"1.0","published":"2016-03-22 23:45:10","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/mayokoex/","categories":["AtCoder"],"image_url":null,"author_name":"mayokoex","height":"190"}