{"published":"2026-01-27 07:28:15","height":"190","image_url":null,"type":"rich","provider_name":"Hatena Blog","categories":[],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F2026%2F01%2F27%2F072815\" title=\"AtCoder Beginner Contest 442 C - 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>","blog_title":"inamori\u2019s diary","provider_url":"https://hatena.blog","width":"100%","version":"1.0","blog_url":"https://inamori.hateblo.jp/","url":"https://inamori.hateblo.jp/entry/2026/01/27/072815","description":"https://atcoder.jp/contests/abc442/tasks/abc442_c\u5229\u5bb3\u95a2\u4fc2\u3067\u76f4\u63a5\u3064\u306a\u304c\u3063\u3066\u3044\u308b\u7814\u7a76\u8005\u306e\u4eba\u6570\u3092\u6570\u3048\u308c\u3070\u3044\u3044\u3067\u3059\u3002\u983b\u5ea6\u3092\u6570\u3048\u308b\u306b\u306ftable\u3068\u3044\u3046\u95a2\u6570\u3092\u4f7f\u3046\u3068\u3088\u3044\u3067\u3059\u3002\u305f\u3060\u3001\u983b\u5ea60\u306f\u51fa\u3066\u3053\u306a\u3044\u306e\u3067\u30011\u305a\u3064\u52a0\u3048\u3066\u304b\u3089\u3042\u3068\u30671\u3092\u5f15\u304d\u307e\u3059\u3002 \u76f4\u63a5\u3064\u306a\u304c\u3063\u3066\u3044\u306a\u3044\u7814\u7a76\u8005\u306e\u6570f\u306f\u3001N\u304b\u3089\u76f4\u63a5\u3064\u306a\u304c\u3063\u3066\u3044\u308b\u4eba\u6570\u3092\u5f15\u3044\u3066\u3001\u3055\u3089\u306b\u81ea\u5206\u3092\u9664\u304d\u307e\u3059\u3002 \u67fb\u8aad\u8005\u306e\u7d44\u5408\u305b\u306ff(f-1)(f-2)/6\u3067\u3059\u3002R\u306f\u6574\u6570\u306f32\u30d3\u30c3\u30c8\u7b26\u53f7\u4ed8\u304d\u6574\u6570\u306e\u7bc4\u56f2\u3092\u9038\u8131\u3059\u308b\u306864\u30d3\u30c3\u30c8\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u306a\u306e\u3067\u3001\u30ae\u30ea\u30ae\u30ea\u6b63\u3057\u304f\u8868\u305b\u308b\u7bc4\u56f2\u3067\u3059\u3002 \u6700\u5f8c\u306b\u3001\u3075\u3064\u3046\u306b\u5927\u304d\u306a\u6570\u3092\u51fa\u529b\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u6307\u6570\u2026","title":"AtCoder Beginner Contest 442 C","author_url":"https://blog.hatena.ne.jp/inamori/","author_name":"inamori"}