{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F2026%2F01%2F01%2F174502\" title=\"AtCoder Beginner Contest 436 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>","title":"AtCoder Beginner Contest 436 C","provider_name":"Hatena Blog","width":"100%","url":"https://inamori.hateblo.jp/entry/2026/01/01/174502","published":"2026-01-01 17:45:02","author_url":"https://blog.hatena.ne.jp/inamori/","categories":[],"blog_url":"https://inamori.hateblo.jp/","blog_title":"inamori\u2019s diary","height":"190","image_url":null,"author_name":"inamori","provider_url":"https://hatena.blog","version":"1.0","description":"https://atcoder.jp/contests/abc436/tasks/abc436_c\u5404\u30d6\u30ed\u30c3\u30af\u306e\u5de6\u4e0a\u3092\u8a18\u9332\u3057\u3066\u304a\u304d\u307e\u3059\u3002\u7bc4\u56f2\u304c\u5e83\u3044\u306e\u3067\u914d\u5217\u306f\u4f7f\u3048\u306a\u3044\u306e\u3067\u9023\u60f3\u914d\u5217\u7684\u306a\u3082\u306e\u3092\u4f7f\u3048\u3070\u3088\u3044\u306e\u3067Python\u3067\u66f8\u304f\u306e\u306f\u7c21\u5358\u3067\u3059\u304c\u3001R\u3067\u306f\u305d\u3046\u7c21\u5358\u306b\u306f\u3044\u304d\u307e\u305b\u3093\u3002 \u307e\u305a\u3001hash\u3068\u3044\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3048\u3070\u7c21\u5358\u3067\u3059\u304c\u3001 > library(hash) hash-2.2.6.3 provided by Decision Patterns > m <- hash() > s <- sprintf(\"%d,%d\", 1, 1) > m[[s]] <- TRUE > has.key(s, m) 1,1 TR\u2026","type":"rich"}