{"width":"100%","author_name":"inamori","title":"AtCoder Beginner Contest 447 C","blog_url":"https://inamori.hateblo.jp/","url":"https://inamori.hateblo.jp/entry/2026/03/06/185228","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","height":"190","categories":[],"author_url":"https://blog.hatena.ne.jp/inamori/","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F2026%2F03%2F06%2F185228\" title=\"AtCoder Beginner Contest 447 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","image_url":null,"description":"https://atcoder.jp/contests/abc447/tasks/abc447_c\u5c3a\u53d6\u308a\u6cd5\u7684\u306b\u30ab\u30a6\u30f3\u30c8\u3057\u3066\u3044\u3051\u3070\u3088\u3044\u3067\u3059\u3002 F <- function(S, T) { k <- 1 l <- 1 L1 <- nchar(S) L2 <- nchar(T) counter <- 0 while(k <= L1 && l <= L2) { c1 <- substr(S, k, k) c2 <- substr(T, l, l) if(c1 == c2) { k <- k + 1 l <- l + 1 } else if(c1 == \"A\") { k <- k + 1 counter \u2026","type":"rich","published":"2026-03-06 18:52:28"}