{"version":"1.0","height":"190","blog_title":"inamori\u2019s diary","width":"100%","blog_url":"https://inamori.hateblo.jp/","image_url":null,"published":"2025-02-04 19:15:15","provider_url":"https://hatena.blog","author_name":"inamori","categories":[],"author_url":"https://blog.hatena.ne.jp/inamori/","title":"AtCoder Beginner Contest 391 F","provider_name":"Hatena Blog","url":"https://inamori.hateblo.jp/entry/2025/02/04/191515","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F2025%2F02%2F04%2F191515\" title=\"AtCoder Beginner Contest 391 F - 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>","type":"rich","description":"https://atcoder.jp/contests/abc391/tasks/abc391_fA, B, C\u3092\u964d\u9806\u306b\u4e26\u3079\u76f4\u3059\u3068\u3001\u3068\u53d6\u308c\u3070\u304c\u6700\u3082\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u6b21\u306f\u3001\u306e\u3069\u308c\u304b\u306b\u306a\u308a\u307e\u3059\u3002PriorityQueue\u3092\u4f7f\u3048\u3070\u7c21\u5358\u306bK\u756a\u76ee\u3092\u6c42\u3081\u3089\u308c\u307e\u3059\u3002 PriorityQueue\u306b\u91cd\u8907\u3057\u3066Triplet\u3092\u5165\u308c\u3066\u306f\u3044\u3051\u306a\u3044\u306e\u3067HashSet\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002Triplet\u3092HashSet\u306e\u30ad\u30fc\u306b\u3059\u308b\u306b\u306f\u3001Hash trait\u3092\u5b9f\u88c5\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u3002 // K-th Largest Triplet #![allow(non_snake_case)] use std::collections::{Bi\u2026"}