{"id":45618,"date":"2023-05-10T12:24:53","date_gmt":"2023-05-10T02:18:06","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45618-2\/"},"modified":"2024-04-30T03:28:47","modified_gmt":"2024-04-29T19:28:47","slug":"45618-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45618-2\/","title":{"rendered":""},"content":{"rendered":"<p>\u4eca\u307e\u3067\u306f Python \u3067\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u6700\u8fd1 Rust \u306e\u52c9\u5f37\u3092\u59cb\u3081\u307e\u3057\u305f\u3002\u540c\u3058\u3088\u3046\u306b Python \u3092\u66f8\u3044\u305f\u3053\u3068\u304c\u3042\u308a Rust \u3078\u5165\u9580\u3057\u3088\u3046\u3068\u8003\u3048\u3066\u3044\u308b\u4eba\u5411\u3051\u306b AtCoder \u306e\u904e\u53bb\u554f (B~C) \u3092\u4e21\u8a00\u8a9e\u3067\u89e3\u3044\u3066\u307f\u307e\u3059\u3002<\/p>\n<h4>\u4eca\u56de\u306e\u30c6\u30fc\u30de<\/h4>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u57fa\u672c\u6587\u6cd5 ( for \/ if \/ \u5165\u51fa\u529b)<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u53c2\u7167<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e1\u30e2\u5316\u518d\u5e30<\/ul>\n<\/li>\n<\/ul>\n<p>Option \u578b<\/p>\n<p>HashMap \/ defaultdict \/ \u8f9e\u66f8<\/p>\n<blockquote><p>\u6b21\u306e\u8a18\u4e8b\uff1aPython\u3068\u6bd4\u3079\u3066\u5b66\u3076\u7af6\u30d7\u30ed\u306e\u305f\u3081\u306eRust Part2<br \/>\n\u6b21\u306e\u30c6\u30fc\u30de\uff1a<\/p>\n<p>\u7d2f\u7a4d\u548c \/ scan<\/p>\n<p>\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc<\/p>\n<p>all \/ any<\/p>\n<p>lower_bound<br \/>\n\u5ea7\u6a19\u5727\u7e2e<\/p><\/blockquote>\n<h4>\u5f79\u306b\u7acb\u3064\u8a18\u4e8b<\/h4>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">RustCoder \u2015\u2015 AtCoder \u3068 Rust \u3067\u59cb\u3081\u308b\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5165\u9580<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">AtCoder 2020\u5e74\u8a00\u8a9e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u4ee5\u964d\u306e\u74b0\u5883<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Docker \u00d7 VSCode \u00d7 Rust \u306a\u958b\u767a\u74b0\u5883\u3092\uff13\u30b9\u30c6\u30c3\u30d7\u3067\u4f5c\u308b<\/ul>\n<h4>ABC243 B &#8211; Hit and Blow<\/h4>\n<p>\u554f\u984c\uff1a<\/p>\n<p>&nbsp;<\/p>\n<h5>Python<\/h5>\n<p>\u63d0\u51fa\uff1ahttps:\/\/atcoder.jp\/contests\/abc243\/submissions\/31304249<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">I<\/span> <span class=\"o\">=<\/span> <span class=\"k\">lambda<\/span><span class=\"p\">:<\/span><span class=\"nf\">int<\/span><span class=\"p\">(<\/span><span class=\"nf\">input<\/span><span class=\"p\">())<\/span>\r\n<span class=\"n\">LI<\/span> <span class=\"o\">=<\/span> <span class=\"k\">lambda<\/span><span class=\"p\">:<\/span><span class=\"nf\">list<\/span><span class=\"p\">(<\/span><span class=\"nf\">map<\/span><span class=\"p\">(<\/span><span class=\"nb\">int<\/span><span class=\"p\">,<\/span><span class=\"nf\">input<\/span><span class=\"p\">().<\/span><span class=\"nf\">split<\/span><span class=\"p\">()))<\/span>\r\n\r\n<span class=\"n\">n<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">I<\/span><span class=\"p\">()<\/span>\r\n<span class=\"n\">al<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">LI<\/span><span class=\"p\">()<\/span>\r\n<span class=\"n\">bl<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">LI<\/span><span class=\"p\">()<\/span>\r\n\r\n<span class=\"n\">ans1<\/span><span class=\"p\">,<\/span><span class=\"n\">ans2<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">,<\/span><span class=\"mi\">0<\/span>\r\n<span class=\"k\">for<\/span> <span class=\"n\">i<\/span> <span class=\"ow\">in<\/span> <span class=\"nf\">range<\/span><span class=\"p\">(<\/span><span class=\"n\">n<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">j<\/span> <span class=\"ow\">in<\/span> <span class=\"nf\">range<\/span><span class=\"p\">(<\/span><span class=\"n\">n<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">al<\/span><span class=\"p\">[<\/span><span class=\"n\">i<\/span><span class=\"p\">]<\/span> <span class=\"o\">==<\/span> <span class=\"n\">bl<\/span><span class=\"p\">[<\/span><span class=\"n\">j<\/span><span class=\"p\">]:<\/span>\r\n            <span class=\"n\">ans1<\/span> <span class=\"o\">+=<\/span> <span class=\"p\">(<\/span><span class=\"n\">i<\/span><span class=\"o\">==<\/span><span class=\"n\">j<\/span><span class=\"p\">)<\/span>\r\n            <span class=\"n\">ans2<\/span> <span class=\"o\">+=<\/span> <span class=\"p\">(<\/span><span class=\"n\">i<\/span><span class=\"o\">!=<\/span><span class=\"n\">j<\/span><span class=\"p\">)<\/span>\r\n<span class=\"nf\">print<\/span><span class=\"p\">(<\/span><span class=\"n\">ans1<\/span><span class=\"p\">)<\/span>\r\n<span class=\"nf\">print<\/span><span class=\"p\">(<\/span><span class=\"n\">ans2<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<h5>Rust<\/h5>\n<p>\u63d0\u51fa\uff1ahttps:\/\/atcoder.jp\/contests\/abc243\/submissions\/31281681<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">fn<\/span> <span class=\"nf\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nn\">proconio<\/span><span class=\"p\">::<\/span><span class=\"nd\">input!<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">n<\/span><span class=\"p\">:<\/span><span class=\"nb\">usize<\/span><span class=\"p\">,<\/span><span class=\"n\">al<\/span><span class=\"p\">:[<\/span><span class=\"nb\">usize<\/span><span class=\"p\">;<\/span><span class=\"n\">n<\/span><span class=\"p\">],<\/span><span class=\"n\">bl<\/span><span class=\"p\">:[<\/span><span class=\"nb\">usize<\/span><span class=\"p\">;<\/span><span class=\"n\">n<\/span><span class=\"p\">]<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">ans1<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">ans2<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">i<\/span> <span class=\"k\">in<\/span> <span class=\"mi\">0<\/span><span class=\"o\">..<\/span><span class=\"n\">n<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">for<\/span> <span class=\"n\">j<\/span> <span class=\"k\">in<\/span> <span class=\"mi\">0<\/span><span class=\"o\">..<\/span><span class=\"n\">n<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">if<\/span> <span class=\"n\">al<\/span><span class=\"p\">[<\/span><span class=\"n\">i<\/span><span class=\"p\">]<\/span> <span class=\"o\">==<\/span> <span class=\"n\">bl<\/span><span class=\"p\">[<\/span><span class=\"n\">j<\/span><span class=\"p\">]<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"n\">ans1<\/span> <span class=\"o\">+=<\/span> <span class=\"p\">(<\/span><span class=\"n\">i<\/span> <span class=\"o\">==<\/span> <span class=\"n\">j<\/span><span class=\"p\">)<\/span> <span class=\"k\">as<\/span> <span class=\"nb\">usize<\/span><span class=\"p\">;<\/span>\r\n                <span class=\"n\">ans2<\/span> <span class=\"o\">+=<\/span> <span class=\"p\">(<\/span><span class=\"n\">i<\/span> <span class=\"o\">!=<\/span> <span class=\"n\">j<\/span><span class=\"p\">)<\/span> <span class=\"k\">as<\/span> <span class=\"nb\">usize<\/span><span class=\"p\">;<\/span>\r\n            <span class=\"p\">}<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">ans1<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">ans2<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>usize \u306f\u975e\u8ca0\u6574\u6570\u3092\u6271\u3046\u578b\u3067\u3001\u914d\u5217\u3084\u30d9\u30af\u30bf\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3068\u3057\u3066\u7528\u3044\u308b\u5834\u5408\u306f usize \u578b\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<br \/>\n\u6570\u5024\u578b\u304b\u3089\u6570\u5024\u578b\u3078\u306e\u30ad\u30e3\u30b9\u30c8\u3092\u884c\u3046\u5834\u5408\u306f as \u3092\u4f7f\u3046\u3002<br \/>\nRust \u3067\u306f\u5909\u6570\u5ba3\u8a00\u6642\u306b mut \u3092\u3064\u3051\u308b\u3068\u53ef\u5909\u306a\u5909\u6570\u3068\u306a\u308a\u3001\u305d\u3046\u3067\u306a\u3051\u308c\u3070\u4e0d\u5909\u306a\u5909\u6570(\u5b9a\u6570)\u3068\u306a\u308b\u3002<br \/>\n\u914d\u5217\u3092\u51fa\u529b\u3059\u308b\u3068\u304d\u306f println!(&#8220;{:?}&#8221;,lis); \u3068\u66f8\u304f\u3002<\/p>\n<h4>ABC088 B &#8211; Card Game for Two<\/h4>\n<p>\u554f\u984c\uff1a<\/p>\n<p>&nbsp;<\/p>\n<h5>Python<\/h5>\n<p>\u63d0\u51fa\uff1ahttps:\/\/atcoder.jp\/contests\/abs\/submissions\/31303893<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">I<\/span> <span class=\"o\">=<\/span> <span class=\"k\">lambda<\/span><span class=\"p\">:<\/span><span class=\"nf\">int<\/span><span class=\"p\">(<\/span><span class=\"nf\">input<\/span><span class=\"p\">())<\/span>\r\n<span class=\"n\">LI<\/span> <span class=\"o\">=<\/span> <span class=\"k\">lambda<\/span><span class=\"p\">:<\/span><span class=\"nf\">list<\/span><span class=\"p\">(<\/span><span class=\"nf\">map<\/span><span class=\"p\">(<\/span><span class=\"nb\">int<\/span><span class=\"p\">,<\/span><span class=\"nf\">input<\/span><span class=\"p\">().<\/span><span class=\"nf\">split<\/span><span class=\"p\">()))<\/span>\r\n\r\n<span class=\"n\">n<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">I<\/span><span class=\"p\">()<\/span>\r\n<span class=\"n\">al<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">sorted<\/span><span class=\"p\">(<\/span><span class=\"nc\">LI<\/span><span class=\"p\">(),<\/span><span class=\"n\">key<\/span><span class=\"o\">=<\/span><span class=\"k\">lambda<\/span> <span class=\"n\">a<\/span><span class=\"p\">:<\/span><span class=\"o\">-<\/span><span class=\"n\">a<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"n\">ans<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span>\r\n<span class=\"k\">for<\/span> <span class=\"n\">i<\/span><span class=\"p\">,<\/span><span class=\"n\">a<\/span> <span class=\"ow\">in<\/span> <span class=\"nf\">enumerate<\/span><span class=\"p\">(<\/span><span class=\"n\">al<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"n\">ans<\/span> <span class=\"o\">+=<\/span> <span class=\"n\">a<\/span> <span class=\"k\">if<\/span> <span class=\"n\">i<\/span><span class=\"o\">%<\/span><span class=\"mi\">2<\/span> <span class=\"o\">==<\/span> <span class=\"mi\">0<\/span> <span class=\"k\">else<\/span> <span class=\"o\">-<\/span><span class=\"n\">a<\/span>\r\n<span class=\"nf\">print<\/span><span class=\"p\">(<\/span><span class=\"n\">ans<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<h5>Rust<\/h5>\n<p>\u63d0\u51fa\uff1ahttps:\/\/atcoder.jp\/contests\/abs\/submissions\/31096051<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">fn<\/span> <span class=\"nf\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"nn\">proconio<\/span><span class=\"p\">::<\/span><span class=\"nd\">input!<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">n<\/span><span class=\"p\">:<\/span><span class=\"nb\">i32<\/span><span class=\"p\">,<\/span><span class=\"k\">mut<\/span> <span class=\"n\">al<\/span><span class=\"p\">:[<\/span><span class=\"nb\">i32<\/span><span class=\"p\">;<\/span><span class=\"n\">n<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">ans<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"n\">al<\/span><span class=\"nf\">.sort_by_key<\/span><span class=\"p\">(|<\/span><span class=\"n\">x<\/span><span class=\"p\">|<\/span> <span class=\"o\">-<\/span><span class=\"n\">x<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"p\">(<\/span><span class=\"n\">i<\/span><span class=\"p\">,<\/span> <span class=\"n\">a<\/span><span class=\"p\">)<\/span> <span class=\"k\">in<\/span> <span class=\"n\">al<\/span><span class=\"nf\">.iter<\/span><span class=\"p\">()<\/span><span class=\"nf\">.enumerate<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">ans<\/span> <span class=\"o\">+=<\/span> <span class=\"k\">if<\/span> <span class=\"n\">i<\/span> <span class=\"o\">%<\/span> <span class=\"mi\">2<\/span> <span class=\"o\">==<\/span> <span class=\"mi\">0<\/span> <span class=\"p\">{<\/span> <span class=\"o\">*<\/span><span class=\"n\">a<\/span> <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span> <span class=\"o\">-*<\/span><span class=\"n\">a<\/span> <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">ans<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30eb\u30fc\u30d7\u4e2d\u306e a \u306e\u578b\u306f\u53c2\u7167 (&amp;i32) \u3067\u3042\u308b\u305f\u3081\u3001\u5024\u3092\u8868\u3059\u3088\u3046\u306b *a \u3068\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002* \u306f\u53c2\u7167\u306b\u5bfe\u3059\u308b\u5024\u3092\u3001&amp; \u306f\u5024\u306b\u5bfe\u3059\u308b\u53c2\u7167\u3092\u8fd4\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u914d\u5217\u3092\u305d\u306e\u307e\u307e\u30eb\u30fc\u30d7\u306b\u7528\u3044\u308b\u3068\u6240\u6709\u6a29\u304c\u79fb\u52d5\u3057\u3001\u4ee5\u964d\u305d\u306e\u914d\u5217\u3092\u5229\u7528\u3067\u304d\u306a\u304f\u306a\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>.iter() \u3092\u4ed8\u3051\u3066\u53c2\u7167\u306e\u30eb\u30fc\u30d7\u306b\u3059\u308c\u3070\u6240\u6709\u6a29\u306f\u79fb\u52d5\u3057\u306a\u3044\u3002<\/p>\n<p>.into_iter() \u306f\u5b9f\u969b\u306e\u5024\u3067\u30a4\u30c6\u30ec\u30fc\u30bf\u5316\u3059\u308b\u306e\u3067\u6240\u6709\u6a29\u304c\u79fb\u52d5\u3059\u308b\u3002<\/p>\n<p>.iter_mut() \u306f &amp;mut \u3067\u30a4\u30c6\u30ec\u30fc\u30bf\u5316\u3059\u308b\u306e\u3067\u53ef\u5909\u304b\u3064\u6240\u6709\u6a29\u304c\u79fb\u52d5\u3057\u306a\u3044<\/p>\n<h4>ABC247 C &#8211; 1 2 1 3 1 2 1<\/h4>\n<p>\u554f\u984c\uff1a<\/p>\n<p>&nbsp;<\/p>\n<h5>Python<\/h5>\n<p>\u63d0\u51fa\uff1ahttps:\/\/atcoder.jp\/contests\/abc247\/submissions\/30855957<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">I<\/span> <span class=\"o\">=<\/span> <span class=\"k\">lambda<\/span><span class=\"p\">:<\/span><span class=\"nf\">int<\/span><span class=\"p\">(<\/span><span class=\"nf\">input<\/span><span class=\"p\">())<\/span>\r\n<span class=\"n\">n<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">I<\/span><span class=\"p\">()<\/span>\r\n\r\n<span class=\"n\">memo<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[[]<\/span> <span class=\"k\">for<\/span> <span class=\"n\">_<\/span> <span class=\"ow\">in<\/span> <span class=\"nf\">range<\/span><span class=\"p\">(<\/span><span class=\"mi\">20<\/span><span class=\"p\">)]<\/span>\r\n<span class=\"n\">memo<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">]<\/span>\r\n<span class=\"k\">def<\/span> <span class=\"nf\">g<\/span><span class=\"p\">(<\/span><span class=\"n\">m<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"ow\">not<\/span> <span class=\"n\">memo<\/span><span class=\"p\">[<\/span><span class=\"n\">m<\/span><span class=\"p\">]:<\/span>\r\n        <span class=\"n\">memo<\/span><span class=\"p\">[<\/span><span class=\"n\">m<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">calc<\/span><span class=\"p\">(<\/span><span class=\"n\">m<\/span><span class=\"o\">-<\/span><span class=\"mi\">1<\/span><span class=\"p\">)<\/span> <span class=\"o\">+<\/span> <span class=\"p\">[<\/span><span class=\"n\">m<\/span><span class=\"p\">]<\/span> <span class=\"o\">+<\/span> <span class=\"nf\">calc<\/span><span class=\"p\">(<\/span><span class=\"n\">m<\/span><span class=\"o\">-<\/span><span class=\"mi\">1<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">memo<\/span><span class=\"p\">[<\/span><span class=\"n\">m<\/span><span class=\"p\">]<\/span>\r\n\r\n<span class=\"nf\">print<\/span><span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"nf\">calc<\/span><span class=\"p\">(<\/span><span class=\"n\">N<\/span><span class=\"p\">))<\/span>\r\n<\/code><\/pre>\n<h5>Rust<\/h5>\n<p>\u63d0\u51fa\uff1ahttps:\/\/atcoder.jp\/contests\/abc247\/submissions\/31305129<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">fn<\/span> <span class=\"nf\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nn\">proconio<\/span><span class=\"p\">::<\/span><span class=\"nd\">input!<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">n<\/span><span class=\"p\">:<\/span><span class=\"nb\">usize<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">memo<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Vec<\/span><span class=\"o\">&lt;<\/span><span class=\"nb\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">=<\/span> <span class=\"nd\">vec!<\/span><span class=\"p\">[<\/span><span class=\"s\">\"\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">();<\/span> <span class=\"mi\">20<\/span><span class=\"p\">];<\/span>\r\n    <span class=\"n\">memo<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"1\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">();<\/span>\r\n    <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"nf\">g<\/span><span class=\"p\">(<\/span><span class=\"n\">n<\/span><span class=\"p\">,<\/span> <span class=\"o\">&amp;<\/span><span class=\"k\">mut<\/span> <span class=\"n\">memo<\/span><span class=\"p\">));<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">g<\/span><span class=\"p\">(<\/span><span class=\"n\">m<\/span><span class=\"p\">:<\/span> <span class=\"nb\">usize<\/span><span class=\"p\">,<\/span> <span class=\"n\">memo<\/span><span class=\"p\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"k\">mut<\/span> <span class=\"nb\">Vec<\/span><span class=\"o\">&lt;<\/span><span class=\"nb\">String<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nb\">String<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">memo<\/span><span class=\"p\">[<\/span><span class=\"n\">m<\/span><span class=\"p\">]<\/span> <span class=\"o\">==<\/span> <span class=\"o\">*<\/span><span class=\"s\">\"\"<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">memo<\/span><span class=\"p\">[<\/span><span class=\"n\">m<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nd\">format!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{} {} {}\"<\/span><span class=\"p\">,<\/span> <span class=\"nf\">g<\/span><span class=\"p\">(<\/span><span class=\"n\">m<\/span> <span class=\"o\">-<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"n\">memo<\/span><span class=\"p\">),<\/span> <span class=\"n\">m<\/span><span class=\"p\">,<\/span> <span class=\"nf\">g<\/span><span class=\"p\">(<\/span><span class=\"n\">m<\/span> <span class=\"o\">-<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"n\">memo<\/span><span class=\"p\">));<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">memo<\/span><span class=\"p\">[<\/span><span class=\"n\">m<\/span><span class=\"p\">]<\/span><span class=\"nf\">.clone<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e1\u30e2\u5316\u518d\u5e30\u95a2\u6570\u3092\u5b9f\u88c5\u3059\u308b\u5834\u5408\u3001\u30e1\u30e2\u7528\u306e\u5909\u6570\u306b &amp;mut \u3092\u6307\u5b9a\u3059\u308b\u3002 &amp;mut \u306f\u5024\u3092\u66f8\u304d\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u53c2\u7167\u306b\u306a\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u6587\u5b57\u5217\u3092\u6271\u3046\u578b\u306f char , String , &amp;str \u306a\u3069\u304c\u3042\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Rust \u3067\u306f return \u306f\u95a2\u6570\u306e\u9014\u4e2d\u3067\u5024\u3092\u8fd4\u3057\u3066\u51e6\u7406\u3092\u4e2d\u65ad\u3059\u308b\u3068\u304d\u306b\u7528\u3044\u308b\u3002\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306f\u5358\u306b ; \u3092\u3064\u3051\u305a\u306b\u5024\u3092\u66f8\u3051\u3070\u3088\u3044\u3002<\/ul>\n<h4>ABC081 B &#8211; Shift only<\/h4>\n<p>\u554f\u984c\uff1a<\/p>\n<p>&nbsp;<\/p>\n<h5>Python<\/h5>\n<p>\u63d0\u51fa\uff1ahttps:\/\/atcoder.jp\/contests\/abs\/submissions\/31305806<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">I<\/span> <span class=\"o\">=<\/span> <span class=\"k\">lambda<\/span><span class=\"p\">:<\/span><span class=\"nf\">int<\/span><span class=\"p\">(<\/span><span class=\"nf\">input<\/span><span class=\"p\">())<\/span>\r\n<span class=\"n\">LI<\/span> <span class=\"o\">=<\/span> <span class=\"k\">lambda<\/span><span class=\"p\">:<\/span><span class=\"nf\">list<\/span><span class=\"p\">(<\/span><span class=\"nf\">map<\/span><span class=\"p\">(<\/span><span class=\"nb\">int<\/span><span class=\"p\">,<\/span><span class=\"nf\">input<\/span><span class=\"p\">().<\/span><span class=\"nf\">split<\/span><span class=\"p\">()))<\/span>\r\n\r\n<span class=\"n\">n<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">I<\/span><span class=\"p\">()<\/span>\r\n<span class=\"n\">al<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">LI<\/span><span class=\"p\">()<\/span>\r\n<span class=\"k\">def<\/span> <span class=\"nf\">g<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"mi\">0<\/span> <span class=\"k\">if<\/span> <span class=\"n\">x<\/span><span class=\"o\">%<\/span><span class=\"mi\">2<\/span> <span class=\"k\">else<\/span> <span class=\"nf\">g<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span><span class=\"o\">\/\/<\/span><span class=\"mi\">2<\/span><span class=\"p\">)<\/span> <span class=\"o\">+<\/span> <span class=\"mi\">1<\/span>\r\n<span class=\"nf\">print<\/span><span class=\"p\">(<\/span><span class=\"nf\">min<\/span><span class=\"p\">(<\/span><span class=\"nf\">g<\/span><span class=\"p\">(<\/span><span class=\"n\">a<\/span><span class=\"p\">)<\/span> <span class=\"k\">for<\/span> <span class=\"n\">a<\/span> <span class=\"ow\">in<\/span> <span class=\"n\">A<\/span><span class=\"p\">))<\/span>\r\n<\/code><\/pre>\n<h5>Rust<\/h5>\n<p>\u63d0\u51fa\uff1ahttps:\/\/atcoder.jp\/contests\/abs\/submissions\/31305392<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">fn<\/span> <span class=\"nf\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nn\">proconio<\/span><span class=\"p\">::<\/span><span class=\"nd\">input!<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">n<\/span><span class=\"p\">:<\/span><span class=\"nb\">usize<\/span><span class=\"p\">,<\/span><span class=\"n\">al<\/span><span class=\"p\">:[<\/span><span class=\"nb\">usize<\/span><span class=\"p\">;<\/span><span class=\"n\">n<\/span><span class=\"p\">]<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">al<\/span><span class=\"nf\">.iter<\/span><span class=\"p\">()<\/span><span class=\"nf\">.map<\/span><span class=\"p\">(|<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">x<\/span><span class=\"p\">|<\/span> <span class=\"nf\">g<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span><span class=\"p\">))<\/span><span class=\"nf\">.min<\/span><span class=\"p\">()<\/span><span class=\"nf\">.unwrap<\/span><span class=\"p\">());<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">g<\/span><span class=\"p\">(<\/span><span class=\"n\">m<\/span><span class=\"p\">:<\/span> <span class=\"nb\">usize<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nb\">usize<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">m<\/span> <span class=\"o\">%<\/span> <span class=\"mi\">2<\/span> <span class=\"o\">==<\/span> <span class=\"mi\">0<\/span> <span class=\"p\">{<\/span> <span class=\"nf\">g<\/span><span class=\"p\">(<\/span><span class=\"n\">m<\/span> <span class=\"o\">\/<\/span> <span class=\"mi\">2<\/span><span class=\"p\">)<\/span> <span class=\"o\">+<\/span> <span class=\"mi\">1<\/span> <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span> <span class=\"mi\">0<\/span> <span class=\"p\">}<\/span> \r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rust \u306b\u306f\u5b89\u5168\u306b\u5024\u3092\u53d6\u308a\u51fa\u3059\u305f\u3081\u306b Option \u578b\u304c\u7528\u610f\u3055\u308c\u3001\u5024\u3092\u53d6\u5f97\u3067\u304d\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308b\u95a2\u6570\u306f Option \u578b\u3092\u8fd4\u3059\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b\u3002min \u306e\u8fd4\u308a\u5024\u3082 Option \u578b\u3067\u3042\u308b\u305f\u3081\u3001\u5024\u3092\u53d6\u308a\u51fa\u3059\u305f\u3081\u306b\u306f unwrap \u3084 unwrap_or \u3092\u7528\u3044\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u4eca\u56de\u306f\u95a2\u6570 g \u3092\u5b9a\u7fa9\u3057\u305f\u304c\u3001\u4f8b\u3048\u3070 .map(|&amp;x| (x&amp;(-x)).trailing_zeros()) \u3068\u66f8\u304f\u65b9\u6cd5\u3082\u3042\u308b\u3002<\/ul>\n<h4>ABC243 C &#8211; Collision 2<\/h4>\n<p>\u554f\u984c\uff1a<\/p>\n<p>&nbsp;<\/p>\n<h5>Python<\/h5>\n<p>\u63d0\u51fa\uff1ahttps:\/\/atcoder.jp\/contests\/abc243\/submissions\/31301450<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">I<\/span><span class=\"o\">=<\/span><span class=\"k\">lambda<\/span><span class=\"p\">:<\/span><span class=\"nf\">int<\/span><span class=\"p\">(<\/span><span class=\"nf\">input<\/span><span class=\"p\">())<\/span>\r\n<span class=\"n\">LI<\/span><span class=\"o\">=<\/span><span class=\"k\">lambda<\/span><span class=\"p\">:<\/span><span class=\"nf\">list<\/span><span class=\"p\">(<\/span><span class=\"nf\">map<\/span><span class=\"p\">(<\/span><span class=\"nb\">int<\/span><span class=\"p\">,<\/span><span class=\"nf\">input<\/span><span class=\"p\">().<\/span><span class=\"nf\">split<\/span><span class=\"p\">()))<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">collections<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">defaultdict<\/span> <span class=\"k\">as<\/span> <span class=\"n\">dd<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"n\">re<\/span>\r\n\r\n<span class=\"n\">n<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">I<\/span><span class=\"p\">()<\/span>\r\n<span class=\"n\">yl<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">dd<\/span><span class=\"p\">(<\/span><span class=\"nb\">list<\/span><span class=\"p\">)<\/span>\r\n<span class=\"n\">xy<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"nc\">LI<\/span><span class=\"p\">()<\/span> <span class=\"k\">for<\/span> <span class=\"n\">_<\/span> <span class=\"ow\">in<\/span> <span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">]<\/span><span class=\"o\">*<\/span><span class=\"n\">N<\/span><span class=\"p\">]<\/span>\r\n<span class=\"n\">s<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">input<\/span><span class=\"p\">()<\/span>\r\n\r\n<span class=\"k\">for<\/span> <span class=\"n\">i<\/span> <span class=\"ow\">in<\/span> <span class=\"nf\">range<\/span><span class=\"p\">(<\/span><span class=\"n\">N<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"n\">x<\/span><span class=\"p\">,<\/span><span class=\"n\">y<\/span><span class=\"o\">=<\/span><span class=\"n\">xy<\/span><span class=\"p\">[<\/span><span class=\"n\">i<\/span><span class=\"p\">]<\/span>\r\n    <span class=\"n\">c<\/span><span class=\"o\">=<\/span><span class=\"n\">s<\/span><span class=\"p\">[<\/span><span class=\"n\">i<\/span><span class=\"p\">]<\/span>\r\n    <span class=\"n\">yl<\/span><span class=\"p\">[<\/span><span class=\"n\">y<\/span><span class=\"p\">].<\/span><span class=\"nf\">append<\/span><span class=\"p\">((<\/span><span class=\"n\">x<\/span><span class=\"p\">,<\/span><span class=\"n\">c<\/span><span class=\"p\">))<\/span>\r\n    \r\n<span class=\"n\">flg<\/span><span class=\"o\">=<\/span><span class=\"bp\">True<\/span>\r\n<span class=\"k\">for<\/span> <span class=\"n\">k<\/span><span class=\"p\">,<\/span><span class=\"n\">v<\/span> <span class=\"ow\">in<\/span> <span class=\"n\">yl<\/span><span class=\"p\">.<\/span><span class=\"nf\">items<\/span><span class=\"p\">():<\/span>\r\n    <span class=\"n\">check<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"sh\">\"<\/span><span class=\"s\">L<\/span><span class=\"sh\">\"<\/span><span class=\"p\">]<\/span> <span class=\"o\">+<\/span> <span class=\"p\">[<\/span><span class=\"n\">p<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">]<\/span> <span class=\"k\">for<\/span> <span class=\"n\">p<\/span> <span class=\"ow\">in<\/span> <span class=\"nf\">sorted<\/span><span class=\"p\">(<\/span><span class=\"n\">v<\/span><span class=\"p\">,<\/span><span class=\"n\">key<\/span><span class=\"o\">=<\/span><span class=\"k\">lambda<\/span> <span class=\"n\">x<\/span><span class=\"p\">:<\/span><span class=\"n\">x<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">])]<\/span> <span class=\"o\">+<\/span> <span class=\"p\">[<\/span><span class=\"sh\">\"<\/span><span class=\"s\">R<\/span><span class=\"sh\">\"<\/span><span class=\"p\">]<\/span>\r\n    <span class=\"n\">check<\/span> <span class=\"o\">=<\/span> <span class=\"sh\">\"\"<\/span><span class=\"p\">.<\/span><span class=\"nf\">join<\/span><span class=\"p\">(<\/span><span class=\"n\">check<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">flg<\/span> <span class=\"o\">=<\/span> <span class=\"n\">flg<\/span> <span class=\"ow\">and<\/span> <span class=\"nf\">bool<\/span><span class=\"p\">(<\/span><span class=\"n\">re<\/span><span class=\"p\">.<\/span><span class=\"nf\">fullmatch<\/span><span class=\"p\">(<\/span><span class=\"sa\">r<\/span><span class=\"sh\">\"<\/span><span class=\"s\">^(L+R+)$<\/span><span class=\"sh\">\"<\/span><span class=\"p\">,<\/span><span class=\"n\">check<\/span><span class=\"p\">))<\/span>\r\n    \r\n<span class=\"nf\">print<\/span><span class=\"p\">([<\/span><span class=\"sh\">'<\/span><span class=\"s\">Yes<\/span><span class=\"sh\">'<\/span><span class=\"p\">,<\/span><span class=\"sh\">'<\/span><span class=\"s\">No<\/span><span class=\"sh\">'<\/span><span class=\"p\">][<\/span><span class=\"n\">flg<\/span><span class=\"p\">])<\/span>\r\n<\/code><\/pre>\n<h5>Rust<\/h5>\n<p>\u63d0\u51fa\uff1ahttps:\/\/atcoder.jp\/contests\/abc243\/submissions\/31302909<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">use<\/span> <span class=\"nn\">itertools<\/span><span class=\"p\">::<\/span><span class=\"n\">sorted<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">use<\/span> <span class=\"nn\">std<\/span><span class=\"p\">::<\/span><span class=\"nn\">collections<\/span><span class=\"p\">::<\/span><span class=\"n\">HashMap<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">VS<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">Vec<\/span><span class=\"o\">&lt;<\/span><span class=\"nb\">String<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nn\">proconio<\/span><span class=\"p\">::<\/span><span class=\"nd\">input!<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">n<\/span><span class=\"p\">:<\/span><span class=\"nb\">usize<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"k\">mut<\/span> <span class=\"n\">xy<\/span><span class=\"p\">:[(<\/span><span class=\"nb\">usize<\/span><span class=\"p\">,<\/span><span class=\"nb\">usize<\/span><span class=\"p\">);<\/span><span class=\"n\">n<\/span><span class=\"p\">],<\/span>\r\n        <span class=\"n\">s<\/span><span class=\"p\">:<\/span><span class=\"nb\">String<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">yl<\/span><span class=\"p\">:<\/span> <span class=\"n\">HashMap<\/span><span class=\"o\">&lt;<\/span><span class=\"nb\">usize<\/span><span class=\"p\">,<\/span> <span class=\"nb\">Vec<\/span><span class=\"o\">&lt;<\/span><span class=\"p\">(<\/span><span class=\"nb\">usize<\/span><span class=\"p\">,<\/span> <span class=\"nb\">String<\/span><span class=\"p\">)<\/span><span class=\"o\">&gt;&gt;<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">HashMap<\/span><span class=\"p\">::<\/span><span class=\"nf\">new<\/span><span class=\"p\">();<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"p\">((<\/span><span class=\"n\">x<\/span><span class=\"p\">,<\/span> <span class=\"n\">y<\/span><span class=\"p\">),<\/span> <span class=\"n\">c<\/span><span class=\"p\">)<\/span> <span class=\"k\">in<\/span> <span class=\"n\">xy<\/span><span class=\"nf\">.iter<\/span><span class=\"p\">()<\/span><span class=\"nf\">.zip<\/span><span class=\"p\">(<\/span><span class=\"n\">s<\/span><span class=\"nf\">.chars<\/span><span class=\"p\">())<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">yl<\/span><span class=\"nf\">.entry<\/span><span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">y<\/span><span class=\"p\">)<\/span><span class=\"nf\">.or_insert<\/span><span class=\"p\">(<\/span><span class=\"nd\">vec!<\/span><span class=\"p\">[]))<\/span><span class=\"nf\">.push<\/span><span class=\"p\">((<\/span><span class=\"o\">*<\/span><span class=\"n\">x<\/span><span class=\"p\">,<\/span> <span class=\"n\">c<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">()));<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">flg<\/span> <span class=\"o\">=<\/span> <span class=\"k\">true<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"p\">(<\/span><span class=\"n\">_<\/span><span class=\"p\">,<\/span> <span class=\"n\">v<\/span><span class=\"p\">)<\/span> <span class=\"k\">in<\/span> <span class=\"n\">yl<\/span><span class=\"nf\">.iter<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">check<\/span> <span class=\"o\">=<\/span> <span class=\"nd\">vec!<\/span><span class=\"p\">[<\/span>\r\n            <span class=\"nd\">vec!<\/span><span class=\"p\">[<\/span><span class=\"s\">\"L\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">()],<\/span>\r\n            <span class=\"nf\">sorted<\/span><span class=\"p\">(<\/span><span class=\"n\">v<\/span><span class=\"p\">)<\/span><span class=\"nf\">.map<\/span><span class=\"p\">(|<\/span><span class=\"n\">x<\/span><span class=\"p\">|<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">x<\/span><span class=\"p\">)<\/span><span class=\"nf\">.clone<\/span><span class=\"p\">()<\/span><span class=\"na\">.1<\/span><span class=\"p\">)<\/span><span class=\"py\">.collect<\/span><span class=\"p\">::<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">VS<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(),<\/span>\r\n            <span class=\"nd\">vec!<\/span><span class=\"p\">[<\/span><span class=\"s\">\"R\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">()],<\/span>\r\n        <span class=\"p\">]<\/span>\r\n        <span class=\"nf\">.concat<\/span><span class=\"p\">();<\/span>\r\n        <span class=\"n\">check<\/span><span class=\"nf\">.dedup<\/span><span class=\"p\">();<\/span>\r\n        <span class=\"n\">flg<\/span> <span class=\"o\">&amp;=<\/span> <span class=\"n\">check<\/span> <span class=\"o\">==<\/span> <span class=\"nd\">vec!<\/span><span class=\"p\">[<\/span><span class=\"s\">\"L\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">(),<\/span> <span class=\"s\">\"R\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">()];<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"k\">if<\/span> <span class=\"o\">!<\/span><span class=\"n\">flg<\/span> <span class=\"p\">{<\/span> <span class=\"s\">\"Yes\"<\/span> <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span> <span class=\"s\">\"No\"<\/span> <span class=\"p\">})<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>$y$ \u306e\u5024\u3054\u3068\u306b\u5206\u5272\u3057\u3066 $x$ \u5ea7\u6a19\u3068\u5bfe\u5fdc\u3059\u308b\u5411\u304d c \u306e\u30da\u30a2\u3092\u914d\u5217\u5316\u3057\u3001$x$ \u5ea7\u6a19\u3067\u30bd\u30fc\u30c8\u3057\u305f\u3068\u304d\u306e\u6587\u5b57\u304c L&#8230;LR&#8230;R \u306e\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n<p>\u30d9\u30af\u30bf\u306e\u5148\u982d\u3078\u306e\u8981\u7d20\u8ffd\u52a0\u306f\u9045\u3044\u304c\u3001\u4eca\u56de\u306f\u9593\u306b\u5408\u3046\u306e\u3067\u4f7f\u7528\u3057\u305f\u3002<\/p>\n<p>Python \u306e defaultdict \u306f\u5b58\u5728\u3057\u306a\u3044\u30ad\u30fc\u3092\u6307\u5b9a\u3057\u305f\u3068\u304d\u306e\u521d\u671f\u5024\u3092\u8a2d\u5b9a\u3067\u304d\u308b\u8f9e\u66f8\u3002Rust \u3067\u306f HashMap \u3092\u7528\u3044\u3066\u540c\u3058\u3088\u3046\u306b\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u308b\u3002<br \/>\n\/\/ dic[key].append(val)<br \/>\n(*dic.entry(key).or_insert(vec![])).push(val);<br \/>\n\/\/ dic[key]+=1;<br \/>\n*dic.entry(key).or_insert(0)+=1;<\/p>\n<p>sorted \u306f itertools \u306b\u542b\u307e\u308c\u308b\u30e1\u30bd\u30c3\u30c9\u3002AtCoder \u306e Rust \u3067\u306f itertools = 0.9.0 \u304c\u4f7f\u3048\u308b\u3002<\/p>\n<p>.dedup() \u306f\u96a3\u63a5\u3059\u308b\u540c\u3058\u8981\u7d20\u3092\u4e00\u3064\u306b\u307e\u3068\u3081\u305f\u914d\u5217\u3092\u4f5c\u308b\u3002<\/p>\n<p>vec1 + vec2 \u306fRust\u3067\u306f vec![vec1,vec2].concat() \u3068\u304b\u304f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u307e\u3067\u306f Python \u3067\u7af6\u6280\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u6700\u8fd1 Rust \u306e\u52c9\u5f37\u3092\u59cb\u3081\u307e\u3057\u305f\u3002\u540c\u3058\u3088\u3046\u306b  [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45618","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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