{"image_url":null,"categories":[],"url":"https://inamori.hateblo.jp/entry/2023/07/24/203503","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F2023%2F07%2F24%2F203503\" title=\"AtCoder Beginner Contest 311 D - 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","type":"rich","width":"100%","title":"AtCoder Beginner Contest 311 D","published":"2023-07-24 20:35:03","blog_url":"https://inamori.hateblo.jp/","author_url":"https://blog.hatena.ne.jp/inamori/","height":"190","provider_name":"Hatena Blog","version":"1.0","provider_url":"https://hatena.blog","description":"https://atcoder.jp/contests/abc311/tasks/abc311_d\u9032\u3081\u308b\u65b9\u5411\u3059\u3079\u3066\u306b\u9032\u3081\u3070\u3044\u3044\u3060\u3051\u3067\u3059\u306d\u3002 // Grid Ice Floor #![allow(non_snake_case)] use std::collections::BTreeSet; //////////////////// library //////////////////// fn read<T: std::str::FromStr>() -> T { let mut line = String::new(); std::io::stdin().read_line(&mut lin\u2026","author_name":"inamori"}