{"blog_title":"Engineering Tech Dojo","categories":["Rust"],"image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftech.fun-toy-life.com%2Fentry%2F2026%2F06%2F03%2F105227\" title=\"Rust\u306eHashMap\u5165\u9580\uff1a\u57fa\u672c\u64cd\u4f5c\u304b\u3089\u983b\u51fa\u30d1\u30bf\u30fc\u30f3\u307e\u3068\u3081 - Engineering Tech Dojo\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://tech.fun-toy-life.com/","url":"https://tech.fun-toy-life.com/entry/2026/06/03/105227","author_url":"https://blog.hatena.ne.jp/plarail_hangout/","published":"2026-06-03 10:52:27","provider_name":"Hatena Blog","version":"1.0","description":"Rust\u306eHashMap\u5165\u9580\uff1a\u57fa\u672c\u64cd\u4f5c\u304b\u3089\u983b\u51fa\u30d1\u30bf\u30fc\u30f3\u307e\u3068\u3081 \u306f\u3058\u3081\u306b HashMap \u306f\u30ad\u30fc\u3068\u5024\u306e\u30da\u30a2\u3067\u30c7\u30fc\u30bf\u3092\u7ba1\u7406\u3059\u308b\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3067\u3059\u3002\u30ad\u30fc\u3067\u7d20\u65e9\u304f\u5024\u3092\u691c\u7d22\u30fb\u66f4\u65b0\u3067\u304d\u307e\u3059\u3002Rust\u3067\u306f std::collections::HashMap \u3068\u3057\u3066\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \u30a4\u30f3\u30dd\u30fc\u30c8 use std::collections::HashMap; \u751f\u6210 // \u7a7a\u306eHashMap\u3092\u4f5c\u308b let mut map: HashMap<String, i32> = HashMap::new(); // \u578b\u63a8\u8ad6\u304c\u52b9\u304f\u5834\u5408\u306f\u578b\u6ce8\u91c8\u3092\u7701\u7565\u3067\u304d\u308b let mut scores = HashMap::new(); sco\u2026","author_name":"plarail_hangout","type":"rich","height":"190","width":"100%","title":"Rust\u306eHashMap\u5165\u9580\uff1a\u57fa\u672c\u64cd\u4f5c\u304b\u3089\u983b\u51fa\u30d1\u30bf\u30fc\u30f3\u307e\u3068\u3081","provider_url":"https://hatena.blog"}