{"provider_name":"Hatena Blog","width":"100%","author_name":"yutas213","published":"2023-12-14 18:00:00","height":"190","url":"https://yutas.hatenadiary.com/entry/2023/12/14/180000","image_url":null,"version":"1.0","provider_url":"https://hatena.blog","title":"C - Theofanis' Nightmare / Codeforces Round 912 (Div. 2)","author_url":"https://blog.hatena.ne.jp/yutas213/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyutas.hatenadiary.com%2Fentry%2F2023%2F12%2F14%2F180000\" title=\"C - Theofanis&#39; Nightmare / Codeforces Round 912 (Div. 2) - yutas\u306e\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u52c9\u5f37\u5e16\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u554f\u984c \u500b\u306e\u8981\u7d20\u304b\u3089\u306a\u308b\u6574\u6570\u5217 \u304c\u4e0e\u3048\u3089\u308c\u308b\u3002 \u3053\u308c\u3092\u3044\u304f\u3064\u304b\u306e\u7a7a\u3067\u306a\u3044\u90e8\u5206\u5217\u306b\u5206\u5272\u3059\u308b\u3002 \u756a\u76ee\u306e\u90e8\u5206\u5217\u306e\u8981\u7d20\u306e\u5408\u8a08\u3092 \u3068\u3057\u3001\u90e8\u5206\u5217\u306e\u500b\u6570\u3092 \u500b\u3068\u3059\u308b\u3068\u304d\u3001 \u306e\u6700\u5927\u5024\u3092\u6c42\u3081\u3088\u3002 \u4f8b \u4f8b\u3048\u3070\u3001 \u3068\u3057\u3001\u3053\u306e\u6570\u5217 \u3092 \u3068\u5206\u5272\u3057\u305f\u3068\u304d\u3001 \\begin{align} \\sum_{i = 1}^{k} i \\cdot \\mathrm{sum}_{i} = 1 \\cdot (1) + 2 \\cdot (-3 + 7) + 3 \\cdot (-6 + 2) + 4 \\cdot (5) = 17 \\end{align} \u3068\u8a08\u7b97\u3055\u308c\u308b\u3002 \u5165\u529b \u307e\u305a\u6700\u521d\u306e1\u884c\u76ee\u306b\u3001\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306e\u500b\u6570\u3092\u8868\u3059\u6574\u6570 \u304c\u4e0e\u3048\u3089\u308c\u308b\u3002 \u305d\u306e\u5f8c\u2026","categories":["CF1903","Codeforces","C++","Div.2","Codeforces Round 912","Diff 1400","\u8caa\u6b32\u6cd5","\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"blog_title":"yutas\u306e\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u52c9\u5f37\u5e16","blog_url":"https://yutas.hatenadiary.com/","type":"rich"}