{"id":1902,"date":"2025-03-24T08:49:39","date_gmt":"2025-03-23T23:49:39","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1902"},"modified":"2025-03-24T08:49:39","modified_gmt":"2025-03-23T23:49:39","slug":"c%e3%81%ae%e4%b9%b1%e6%95%b0%e7%94%9f%e6%88%90%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9a%e5%88%9d%e5%bf%83%e8%80%85%e3%81%a7%e3%82%82%e5%88%86%e3%81%8b%e3%82%8b%e5%ae%9f%e8%a3%85","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1902","title":{"rendered":"C++\u306e\u4e71\u6570\u751f\u6210\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a\u521d\u5fc3\u8005\u3067\u3082\u5206\u304b\u308b\u5b9f\u88c5\u65b9\u6cd5\u30685\u3064\u306e\u6d3b\u7528\u4f8b"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">C++\u306b\u304a\u3051\u308b\u4e71\u6570\u751f\u6210\u306e\u57fa\u790e\u77e5\u8b58<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u4e71\u6570\u3068\u306f\u4f55\u304b\uff1a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3051\u308b\u5b9a\u7fa9\u3068\u91cd\u8981\u6027<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">\u7591\u4f3c\u4e71\u6570\u3068\u771f\u306e\u4e71\u6570\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-6\">\u30e2\u30c0\u30f3C++\u3067\u306e\u4e71\u6570\u306e\u751f\u6210\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-7\">std::random_device\u3092\u4f7f\u3063\u305f\u771f\u306e\u4e71\u6570\u306e\u751f\u6210\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-8\">\u30e1\u30eb\u30bb\u30f3\u30cc\u30fb\u30c4\u30a4\u30b9\u30bf\u30fc\u6cd5\u306b\u3088\u308b\u9ad8\u54c1\u8cea\u306a\u7591\u4f3c\u4e71\u6570\u306e\u751f\u6210<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-9\">\u4e71\u6570\u5206\u5e03\u30af\u30e9\u30b9\u3092\u6d3b\u7528\u3057\u305f\u69d8\u3005\u306a\u78ba\u7387\u5206\u5e03\u306e\u5b9f\u73fe<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-10\">\u5b9f\u8df5\u7684\u306a\u4e71\u6570\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-11\">\u30b7\u30fc\u30c9\u5024\u306e\u9069\u5207\u306a\u8a2d\u5b9a\u65b9\u6cd5\u3068\u91cd\u8981\u6027<\/a>      <\/li>      <li>        <a href=\"#i-12\">\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u4e71\u6570\u751f\u6210\u306e\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-13\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u4e71\u6570\u751f\u6210\u306e\u6700\u9069\u5316<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-14\">\u4e71\u6570\u751f\u6210\u306b\u304a\u3051\u308b\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74\u3068\u89e3\u6c7a\u7b56<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-15\">rand()\u95a2\u6570\u4f7f\u7528\u6642\u306e\u554f\u984c\u70b9\u3068\u5bfe\u51e6\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-16\">\u4e88\u6e2c\u53ef\u80fd\u306a\u4e71\u6570\u751f\u6210\u3092\u9632\u3050\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-17\">\u4e71\u6570\u306e\u30c6\u30b9\u30c8\u65b9\u6cd5\u3068\u54c1\u8cea\u691c\u8a3c\u306e\u91cd\u8981\u6027<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-18\">C++\u4e71\u6570\u751f\u6210\u306e\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u4f8b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-19\">\u30b2\u30fc\u30e0\u958b\u767a\u3067\u306e\u78ba\u7387\u8a08\u7b97\u3068\u30a2\u30a4\u30c6\u30e0\u30c9\u30ed\u30c3\u30d7\u306e\u5b9f\u88c5<\/a>      <\/li>      <li>        <a href=\"#i-20\">\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306e\u30ce\u30a4\u30ba\u751f\u6210<\/a>      <\/li>      <li>        <a href=\"#i-21\">\u30bb\u30ad\u30e5\u30a2\u306a\u6697\u53f7\u5316\u30ad\u30fc\u306e\u751f\u6210\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-22\">\u30e2\u30f3\u30c6\u30ab\u30eb\u30ed\u6cd5\u3092\u7528\u3044\u305f\u6570\u5024\u8a08\u7b97\u306e\u5b9f\u88c5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-23\">\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u81ea\u52d5\u751f\u6210\u30c4\u30fc\u30eb\u306e\u4f5c\u6210<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">C++\u306b\u304a\u3051\u308b\u4e71\u6570\u751f\u6210\u306e\u57fa\u790e\u77e5\u8b58<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u4e71\u6570\u3068\u306f\u4f55\u304b\uff1a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3051\u308b\u5b9a\u7fa9\u3068\u91cd\u8981\u6027<\/h3>\n\n\n\n<p>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3051\u308b\u4e71\u6570\u3068\u306f\u3001\u4e88\u6e2c\u4e0d\u53ef\u80fd\u306a\u6570\u5024\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002C++\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306b\u304a\u3044\u3066\u3001\u4e71\u6570\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b2\u30fc\u30e0\u958b\u767a\uff1a\u6575\u306e\u52d5\u304d\u3084\u30a2\u30a4\u30c6\u30e0\u306e\u30c9\u30ed\u30c3\u30d7\u7387\u306e\u6c7a\u5b9a<\/li>\n\n\n\n<li>\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\uff1a\u81ea\u7136\u73fe\u8c61\u3084\u4eba\u5de5\u7684\u306a\u30ce\u30a4\u30ba\u306e\u518d\u73fe<\/li>\n\n\n\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff1a\u6697\u53f7\u5316\u30ad\u30fc\u306e\u751f\u6210<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\uff1a\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u81ea\u52d5\u751f\u6210<\/li>\n<\/ul>\n\n\n\n<p>\u7279\u306bC++\u3067\u306f\u3001\u69d8\u3005\u306a\u4e71\u6570\u751f\u6210\u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u63d0\u4f9b\u3055\u308c\u3066\u304a\u308a\u3001\u7528\u9014\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u65b9\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u7591\u4f3c\u4e71\u6570\u3068\u771f\u306e\u4e71\u6570\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b<\/h3>\n\n\n\n<p>\u4e71\u6570\u751f\u6210\u306b\u306f\u3001\u4e3b\u306b\u300c\u7591\u4f3c\u4e71\u6570\u300d\u3068\u300c\u771f\u306e\u4e71\u6570\u300d\u306e2\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u7279\u5fb4\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u9069\u5207\u306a\u5b9f\u88c5\u65b9\u6cd5\u3092\u9078\u629e\u3059\u308b\u4e0a\u3067\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-3\">1. \u7591\u4f3c\u4e71\u6570\uff08Pseudo-Random Numbers\uff09<\/h4>\n\n\n\n<p>\u7591\u4f3c\u4e71\u6570\u306f\u6570\u5b66\u7684\u306a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u308b\u6570\u5024\u30b7\u30fc\u30b1\u30f3\u30b9\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u7279\u5fb4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6c7a\u5b9a\u8ad6\u7684\u306a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u57fa\u3065\u304f<\/li>\n\n\n\n<li>\u540c\u3058\u30b7\u30fc\u30c9\u5024\u304b\u3089\u306f\u540c\u3058\u6570\u5217\u304c\u751f\u6210\u3055\u308c\u308b<\/li>\n\n\n\n<li>\u9ad8\u901f\u306a\u751f\u6210\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u518d\u73fe\u6027\u304c\u3042\u308b\uff08\u30c7\u30d0\u30c3\u30b0\u306b\u6709\u5229\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u4ee3\u8868\u7684\u306a\u5b9f\u88c5\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n\n\/\/ \u30e1\u30eb\u30bb\u30f3\u30cc\u30fb\u30c4\u30a4\u30b9\u30bf\u30fc\u6cd5\u306b\u3088\u308b\u7591\u4f3c\u4e71\u6570\u751f\u6210\u5668\nstd::mt19937 gen(42); \/\/ 42\u306f\u30b7\u30fc\u30c9\u5024\n\n\/\/ 1\u304b\u3089100\u307e\u3067\u306e\u4e00\u69d8\u5206\u5e03\u306e\u4e71\u6570\u3092\u751f\u6210\nstd::uniform_int_distribution&lt;&gt; dis(1, 100);\nint random_number = dis(gen);<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-4\">2. \u771f\u306e\u4e71\u6570\uff08True Random Numbers\uff09<\/h4>\n\n\n\n<p>\u771f\u306e\u4e71\u6570\u306f\u7269\u7406\u7684\u306a\u73fe\u8c61\u3092\u5229\u7528\u3057\u3066\u751f\u6210\u3055\u308c\u308b\u4e88\u6e2c\u4e0d\u53ef\u80fd\u306a\u6570\u5024\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u7279\u5fb4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u7269\u7406\u7684\u306a\u73fe\u8c61\u3092\u5229\u7528<\/li>\n\n\n\n<li>\u5b8c\u5168\u306a\u4e88\u6e2c\u4e0d\u53ef\u80fd\u6027<\/li>\n\n\n\n<li>\u751f\u6210\u901f\u5ea6\u304c\u6bd4\u8f03\u7684\u9045\u3044<\/li>\n\n\n\n<li>\u518d\u73fe\u4e0d\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<p>\u5b9f\u88c5\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n\n\/\/ \u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u4e71\u6570\u751f\u6210\u5668\u3092\u4f7f\u7528\nstd::random_device rd;\nint random_number = rd();<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-5\">\u4f7f\u3044\u5206\u3051\u306e\u6307\u91dd<\/h4>\n\n\n<div id=\"id-e42c3344-2615-4ad7-9821-c34fbe945a2a\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7528\u9014<\/th><th>\u63a8\u5968\u3055\u308c\u308b\u7a2e\u985e<\/th><th>\u7406\u7531<\/th><\/tr><\/thead><tbody><tr><td>\u30b2\u30fc\u30e0\u958b\u767a<\/td><td>\u7591\u4f3c\u4e71\u6570<\/td><td>\u518d\u73fe\u6027\u304c\u5fc5\u8981\u3001\u9ad8\u901f\u306a\u751f\u6210\u304c\u91cd\u8981<\/td><\/tr><tr><td>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u95a2\u9023<\/td><td>\u771f\u306e\u4e71\u6570<\/td><td>\u4e88\u6e2c\u4e0d\u53ef\u80fd\u6027\u304c\u91cd\u8981<\/td><\/tr><tr><td>\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3<\/td><td>\u7591\u4f3c\u4e71\u6570<\/td><td>\u518d\u73fe\u53ef\u80fd\u306a\u7d50\u679c\u304c\u5fc5\u8981<\/td><\/tr><tr><td>\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u751f\u6210<\/td><td>\u7591\u4f3c\u4e71\u6570<\/td><td>\u518d\u73fe\u6027\u306e\u3042\u308b\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306e\u751f\u6210<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u5b9f\u969b\u306e\u958b\u767a\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u7279\u6027\u3092\u7406\u89e3\u3057\u305f\u4e0a\u3067\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u65b9\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30e2\u30c0\u30f3C++\u3067\u306e\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-6\">\u30e2\u30c0\u30f3C++\u3067\u306e\u4e71\u6570\u306e\u751f\u6210\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">std::random_device\u3092\u4f7f\u3063\u305f\u771f\u306e\u4e71\u6570\u306e\u751f\u6210\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30e2\u30c0\u30f3C++\u3067\u306f\u3001<code>std::random_device<\/code>\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u3066\u771f\u306e\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30af\u30e9\u30b9\u306f\u3001\u5229\u7528\u53ef\u80fd\u306a\u5834\u5408\u306f\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u4e71\u6570\u751f\u6210\u5668\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;iostream&gt;\n\nint main() {\n    \/\/ \u771f\u306e\u4e71\u6570\u751f\u6210\u5668\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\n    std::random_device rd;\n\n    \/\/ \u4e71\u6570\u3092\u751f\u6210\n    for(int i = 0; i &lt; 5; ++i) {\n        \/\/ \u751f\u306e\u4e71\u6570\u5024\u3092\u53d6\u5f97\n        std::cout &lt;&lt; rd() &lt;&lt; std::endl;\n\n        \/\/ \u7279\u5b9a\u306e\u7bc4\u56f2\u306e\u4e71\u6570\u3092\u751f\u6210\uff081\u304b\u3089100\u307e\u3067\uff09\n        std::uniform_int_distribution&lt;int&gt; dist(1, 100);\n        std::cout &lt;&lt; \"\u7bc4\u56f2\u6307\u5b9a: \" &lt;&lt; dist(rd) &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<p>\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u3088\u3063\u3066\u306f<code>std::random_device<\/code>\u304c\u7591\u4f3c\u4e71\u6570\u751f\u6210\u5668\u3068\u3057\u3066\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308b<\/li>\n\n\n\n<li>\u751f\u6210\u901f\u5ea6\u306f\u6bd4\u8f03\u7684\u9045\u3044<\/li>\n\n\n\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u91cd\u8981\u306a\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u308b<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u30e1\u30eb\u30bb\u30f3\u30cc\u30fb\u30c4\u30a4\u30b9\u30bf\u30fc\u6cd5\u306b\u3088\u308b\u9ad8\u54c1\u8cea\u306a\u7591\u4f3c\u4e71\u6570\u306e\u751f\u6210<\/h3>\n\n\n\n<p>\u30e1\u30eb\u30bb\u30f3\u30cc\u30fb\u30c4\u30a4\u30b9\u30bf\u30fc\uff08Mersenne Twister\uff09\u306f\u3001\u9577\u5468\u671f\u3067\u9ad8\u54c1\u8cea\u306a\u7591\u4f3c\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u73fe\u4ee3\u7684\u306a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3059\u3002C++\u3067\u306f<code>std::mt19937<\/code>\u30af\u30e9\u30b9\u3068\u3057\u3066\u5b9f\u88c5\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;chrono&gt;\n#include &lt;iostream&gt;\n\nint main() {\n    \/\/ \u73fe\u5728\u6642\u523b\u3092\u30b7\u30fc\u30c9\u5024\u3068\u3057\u3066\u4f7f\u7528\n    unsigned seed = std::chrono::system_clock::now().time_since_epoch().count();\n\n    \/\/ \u30e1\u30eb\u30bb\u30f3\u30cc\u30fb\u30c4\u30a4\u30b9\u30bf\u30fc\u306e32\u30d3\u30c3\u30c8\u7248\n    std::mt19937 gen(seed);\n\n    \/\/ 64\u30d3\u30c3\u30c8\u7248\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\n    \/\/ std::mt19937_64 gen64(seed);\n\n    \/\/ 1\u304b\u30896\u307e\u3067\u306e\u4e00\u69d8\u5206\u5e03\u306e\u4e71\u6570\uff08\u30b5\u30a4\u30b3\u30ed\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\uff09\n    std::uniform_int_distribution&lt;&gt; dice(1, 6);\n\n    for(int i = 0; i &lt; 5; ++i) {\n        std::cout &lt;&lt; \"\u30b5\u30a4\u30b3\u30ed\u306e\u76ee: \" &lt;&lt; dice(gen) &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<p>\u7279\u5fb4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2^19937-1\u3068\u3044\u3046\u9577\u3044\u5468\u671f<\/li>\n\n\n\n<li>\u512a\u308c\u305f\u7d71\u8a08\u7684\u6027\u8cea<\/li>\n\n\n\n<li>\u9ad8\u901f\u306a\u751f\u6210\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u30af\u30ed\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u4e00\u8cab\u3057\u305f\u7d50\u679c<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u4e71\u6570\u5206\u5e03\u30af\u30e9\u30b9\u3092\u6d3b\u7528\u3057\u305f\u69d8\u3005\u306a\u78ba\u7387\u5206\u5e03\u306e\u5b9f\u73fe<\/h3>\n\n\n\n<p>\u30e2\u30c0\u30f3C++\u306f\u3001\u69d8\u3005\u306a\u78ba\u7387\u5206\u5e03\u306b\u5f93\u3046\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u5206\u5e03\u30af\u30e9\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;iostream&gt;\n\nint main() {\n    std::random_device rd;\n    std::mt19937 gen(rd());\n\n    \/\/ \u4e00\u69d8\u5206\u5e03\uff08\u6574\u6570\uff09\n    std::uniform_int_distribution&lt;&gt; uniform_int(0, 100);\n\n    \/\/ \u4e00\u69d8\u5206\u5e03\uff08\u5b9f\u6570\uff09\n    std::uniform_real_distribution&lt;&gt; uniform_real(0.0, 1.0);\n\n    \/\/ \u6b63\u898f\u5206\u5e03\n    std::normal_distribution&lt;&gt; normal(0.0, 1.0); \/\/ \u5e73\u57470\u3001\u6a19\u6e96\u504f\u5dee1\n\n    \/\/ \u30d9\u30eb\u30cc\u30fc\u30a4\u5206\u5e03\uff08\u78ba\u7387p\u3067\u771f\u30011-p\u3067\u507d\uff09\n    std::bernoulli_distribution bernoulli(0.7); \/\/ 70%\u306e\u78ba\u7387\u3067\u771f\n\n    \/\/ \u5404\u5206\u5e03\u304b\u3089\u306e\u4e71\u6570\u751f\u6210\u4f8b\n    std::cout &lt;&lt; \"\u4e00\u69d8\u6574\u6570\u5206\u5e03: \" &lt;&lt; uniform_int(gen) &lt;&lt; std::endl;\n    std::cout &lt;&lt; \"\u4e00\u69d8\u5b9f\u6570\u5206\u5e03: \" &lt;&lt; uniform_real(gen) &lt;&lt; std::endl;\n    std::cout &lt;&lt; \"\u6b63\u898f\u5206\u5e03: \" &lt;&lt; normal(gen) &lt;&lt; std::endl;\n    std::cout &lt;&lt; \"\u30d9\u30eb\u30cc\u30fc\u30a4\u5206\u5e03: \" &lt;&lt; bernoulli(gen) &lt;&lt; std::endl;\n}<\/pre>\n\n\n\n<p>\u4e3b\u306a\u5206\u5e03\u30af\u30e9\u30b9\u4e00\u89a7\uff1a<\/p>\n\n\n<div id=\"id-a5d19e55-7721-4e0c-ba98-184f3e237e65\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5206\u5e03\u30af\u30e9\u30b9<\/th><th>\u7528\u9014<\/th><th>\u5178\u578b\u7684\u306a\u4f7f\u7528\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>uniform_int_distribution<\/td><td>\u6574\u6570\u306e\u4e00\u69d8\u5206\u5e03<\/td><td>\u30b5\u30a4\u30b3\u30ed\u3001\u30e9\u30f3\u30c0\u30e0\u30a4\u30f3\u30c7\u30c3\u30af\u30b9<\/td><\/tr><tr><td>uniform_real_distribution<\/td><td>\u5b9f\u6570\u306e\u4e00\u69d8\u5206\u5e03<\/td><td>\u78ba\u7387\u8a08\u7b97\u3001\u6b63\u898f\u5316\u3055\u308c\u305f\u4e71\u6570<\/td><\/tr><tr><td>normal_distribution<\/td><td>\u6b63\u898f\u5206\u5e03<\/td><td>\u81ea\u7136\u73fe\u8c61\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3<\/td><\/tr><tr><td>bernoulli_distribution<\/td><td>\u30d9\u30eb\u30cc\u30fc\u30a4\u5206\u5e03<\/td><td>\u78ba\u7387\u7684\u306a\u771f\u507d\u5224\u5b9a<\/td><\/tr><tr><td>poisson_distribution<\/td><td>\u30dd\u30a2\u30bd\u30f3\u5206\u5e03<\/td><td>\u30a4\u30d9\u30f3\u30c8\u767a\u751f\u983b\u5ea6\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3<\/td><\/tr><tr><td>exponential_distribution<\/td><td>\u6307\u6570\u5206\u5e03<\/td><td>\u5f85\u3061\u6642\u9593\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u3053\u308c\u3089\u306e\u5206\u5e03\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5b9f\u969b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u5fc5\u8981\u3068\u306a\u308b\u69d8\u3005\u306a\u78ba\u7387\u5206\u5e03\u306b\u5f93\u3046\u4e71\u6570\u3092\u7c21\u5358\u306b\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u6a5f\u80fd\u3092\u5b9f\u8df5\u7684\u306b\u6d3b\u7528\u3059\u308b\u305f\u3081\u306e\u30c6\u30af\u30cb\u30c3\u30af\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-10\">\u5b9f\u8df5\u7684\u306a\u4e71\u6570\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u30b7\u30fc\u30c9\u5024\u306e\u9069\u5207\u306a\u8a2d\u5b9a\u65b9\u6cd5\u3068\u91cd\u8981\u6027<\/h3>\n\n\n\n<p>\u30b7\u30fc\u30c9\u5024\u306e\u8a2d\u5b9a\u306f\u4e71\u6570\u751f\u6210\u306e\u54c1\u8cea\u3068\u4e88\u6e2c\u53ef\u80fd\u6027\u306b\u76f4\u63a5\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u52b9\u679c\u7684\u306a\u30b7\u30fc\u30c9\u5024\u306e\u8a2d\u5b9a\u65b9\u6cd5\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;chrono&gt;\n#include &lt;thread&gt;\n\nclass RandomGenerator {\nprivate:\n    \/\/ \u63a8\u5968\u3055\u308c\u308b\u65b9\u6cd5\uff1a\u8907\u6570\u306e\u30a8\u30f3\u30c8\u30ed\u30d4\u30fc\u30bd\u30fc\u30b9\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\n    static unsigned long generate_seed() {\n        \/\/ \u6642\u9593\u30d9\u30fc\u30b9\u306e\u30b7\u30fc\u30c9\n        auto time_seed = std::chrono::high_resolution_clock::now().time_since_epoch().count();\n\n        \/\/ \u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u4e71\u6570\u304b\u3089\u306e\u30b7\u30fc\u30c9\n        std::random_device rd;\n        auto hardware_seed = rd();\n\n        \/\/ \u30b9\u30ec\u30c3\u30c9ID\u3092\u52a0\u3048\u308b\u3053\u3068\u3067\u3001\u4e26\u884c\u5b9f\u884c\u6642\u306e\u4e00\u610f\u6027\u3092\u5411\u4e0a\n        auto thread_seed = std::hash&lt;std::thread::id&gt;{}(std::this_thread::get_id());\n\n        \/\/ \u8907\u6570\u306e\u30bd\u30fc\u30b9\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\n        return time_seed ^ hardware_seed ^ thread_seed;\n    }\n\npublic:\n    RandomGenerator() : gen(generate_seed()) {}\n\n    \/\/ \u4e71\u6570\u751f\u6210\u30e1\u30bd\u30c3\u30c9\n    int generate(int min, int max) {\n        std::uniform_int_distribution&lt;&gt; dis(min, max);\n        return dis(gen);\n    }\n\nprivate:\n    std::mt19937 gen;\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u4e71\u6570\u751f\u6210\u306e\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u3067\u306e\u4e71\u6570\u751f\u6210\u306b\u306f\u7279\u5225\u306a\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;mutex&gt;\n#include &lt;memory&gt;\n\nclass ThreadSafeRandom {\npublic:\n    static ThreadSafeRandom&amp; getInstance() {\n        static ThreadSafeRandom instance;\n        return instance;\n    }\n\n    \/\/ \u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u4e71\u6570\u751f\u6210\u30e1\u30bd\u30c3\u30c9\n    int generateNumber(int min, int max) {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex_);\n        std::uniform_int_distribution&lt;&gt; dis(min, max);\n        return dis(gen_);\n    }\n\nprivate:\n    ThreadSafeRandom() : gen_(std::random_device{}()) {}\n\n    std::mutex mutex_;\n    std::mt19937 gen_;\n\n    \/\/ \u30b7\u30f3\u30b0\u30eb\u30c8\u30f3\u30d1\u30bf\u30fc\u30f3\u306e\u305f\u3081\u306e\u5b9a\u7fa9\n    ThreadSafeRandom(const ThreadSafeRandom&amp;) = delete;\n    ThreadSafeRandom&amp; operator=(const ThreadSafeRandom&amp;) = delete;\n};\n\n\/\/ \u30b9\u30ec\u30c3\u30c9\u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8\u3092\u4f7f\u7528\u3057\u305f\u5225\u306e\u5b9f\u88c5\u65b9\u6cd5\nclass ThreadLocalRandom {\npublic:\n    static int generate(int min, int max) {\n        static thread_local std::mt19937 gen(std::random_device{}());\n        std::uniform_int_distribution&lt;&gt; dis(min, max);\n        return dis(gen);\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u4e71\u6570\u751f\u6210\u306e\u6700\u9069\u5316<\/h3>\n\n\n\n<p>\u4e71\u6570\u751f\u6210\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;vector&gt;\n#include &lt;chrono&gt;\n\nclass OptimizedRandom {\npublic:\n    OptimizedRandom(size_t buffer_size = 1000) \n        : gen_(std::random_device{}())\n        , buffer_size_(buffer_size)\n    {\n        refill_buffer();\n    }\n\n    \/\/ \u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u305f\u9ad8\u901f\u306a\u4e71\u6570\u751f\u6210\n    int fast_generate(int min, int max) {\n        if (current_index_ &gt;= buffer_size_) {\n            refill_buffer();\n        }\n\n        \/\/ \u30d0\u30c3\u30d5\u30a1\u304b\u3089\u5024\u3092\u53d6\u5f97\u3057\u3001\u6307\u5b9a\u7bc4\u56f2\u306b\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\n        double ratio = static_cast&lt;double&gt;(buffer_[current_index_++]) \/ \n                      static_cast&lt;double&gt;(std::mt19937::max());\n        return min + static_cast&lt;int&gt;(ratio * (max - min));\n    }\n\nprivate:\n    void refill_buffer() {\n        buffer_.resize(buffer_size_);\n        for (size_t i = 0; i &lt; buffer_size_; ++i) {\n            buffer_[i] = gen_();\n        }\n        current_index_ = 0;\n    }\n\n    std::mt19937 gen_;\n    std::vector&lt;std::mt19937::result_type&gt; buffer_;\n    size_t buffer_size_;\n    size_t current_index_ = 0;\n};<\/pre>\n\n\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n<div id=\"id-2af148cc-22b3-43cc-9f73-215e120b1e66\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6700\u9069\u5316\u624b\u6cd5<\/th><th>\u30e1\u30ea\u30c3\u30c8<\/th><th>\u30c7\u30e1\u30ea\u30c3\u30c8<\/th><\/tr><\/thead><tbody><tr><td>\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0<\/td><td>\u751f\u6210\u30b3\u30b9\u30c8\u306e\u5206\u6563<\/td><td>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u5897\u52a0<\/td><\/tr><tr><td>\u30b9\u30ec\u30c3\u30c9\u30ed\u30fc\u30ab\u30eb<\/td><td>\u30ed\u30c3\u30af\u4e0d\u8981\u3067\u9ad8\u901f<\/td><td>\u30b9\u30ec\u30c3\u30c9\u3054\u3068\u306e\u30e1\u30e2\u30ea\u6d88\u8cbb<\/td><\/tr><tr><td>\u4e00\u62ec\u751f\u6210<\/td><td>\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u524a\u6e1b<\/td><td>\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u5897\u52a0\u53ef\u80fd\u6027<\/td><\/tr><tr><td>\u4e8b\u524d\u8a08\u7b97<\/td><td>\u5b9f\u884c\u6642\u6027\u80fd\u5411\u4e0a<\/td><td>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u5897\u52a0<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u3053\u308c\u3089\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8981\u4ef6\u306b\u5408\u3063\u305f\u52b9\u7387\u7684\u306a\u4e71\u6570\u751f\u6210\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9f\u88c5\u6642\u306b\u3088\u304f\u3042\u308b\u843d\u3068\u3057\u7a74\u3068\u305d\u306e\u89e3\u6c7a\u7b56\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-14\">\u4e71\u6570\u751f\u6210\u306b\u304a\u3051\u308b\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74\u3068\u89e3\u6c7a\u7b56<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">rand()\u95a2\u6570\u4f7f\u7528\u6642\u306e\u554f\u984c\u70b9\u3068\u5bfe\u51e6\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u5f93\u6765\u306eC\u8a00\u8a9e\u7531\u6765\u306e<code>rand()<\/code>\u95a2\u6570\u306b\u306f\u3001\u591a\u304f\u306e\u554f\u984c\u70b9\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u4e3b\u306a\u554f\u984c\u70b9\u3068\u3001\u30e2\u30c0\u30f3\u306a\u89e3\u6c7a\u7b56\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\u4f8b\n#include &lt;stdlib.h&gt;\n#include &lt;time.h&gt;\n\nvoid problematic_random() {\n    srand(time(NULL));  \/\/ \u554f\u984c1: \u7c97\u3044\u30b7\u30fc\u30c9\u5024\n\n    \/\/ \u554f\u984c2: \u4f4e\u54c1\u8cea\u306a\u4e71\u6570\u751f\u6210\n    int random_number = rand() % 100;  \/\/ \u554f\u984c3: \u30e2\u30b8\u30e5\u30ed\u30d0\u30a4\u30a2\u30b9\n\n    \/\/ \u554f\u984c4: \u7bc4\u56f2\u6307\u5b9a\u306e\u4e0d\u9069\u5207\u306a\u65b9\u6cd5\n    int min = 10, max = 20;\n    int scaled_random = min + (rand() % (max - min + 1));\n}\n\n\/\/ \u63a8\u5968\u3055\u308c\u308b\u73fe\u4ee3\u7684\u306a\u89e3\u6c7a\u7b56\n#include &lt;random&gt;\n#include &lt;chrono&gt;\n\nclass ModernRandom {\npublic:\n    ModernRandom() : \n        gen_(std::random_device{}()),\n        uniform_dist_(0, 99) {  \/\/ 0-99\u306e\u7bc4\u56f2\u3092\u9069\u5207\u306b\u8a2d\u5b9a\n    }\n\n    int generate() {\n        return uniform_dist_(gen_);\n    }\n\n    int generate_range(int min, int max) {\n        std::uniform_int_distribution&lt;&gt; range_dist(min, max);\n        return range_dist(gen_);\n    }\n\nprivate:\n    std::mt19937 gen_;\n    std::uniform_int_distribution&lt;&gt; uniform_dist_;\n};<\/pre>\n\n\n\n<p><code>rand()<\/code>\u95a2\u6570\u306e\u4e3b\u306a\u554f\u984c\u70b9\u3068\u89e3\u6c7a\u7b56\uff1a<\/p>\n\n\n<div id=\"id-095217c2-8c8d-4446-867b-3cd8d296bc2a\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u554f\u984c\u70b9<\/th><th>\u5f71\u97ff<\/th><th>\u30e2\u30c0\u30f3\u306a\u89e3\u6c7a\u7b56<\/th><\/tr><\/thead><tbody><tr><td>\u4f4e\u54c1\u8cea\u306a\u4e71\u6570\u751f\u6210<\/td><td>\u5468\u671f\u6027\u304c\u77ed\u304f\u3001\u30d1\u30bf\u30fc\u30f3\u304c\u4e88\u6e2c\u53ef\u80fd<\/td><td>std::mt19937\u306e\u4f7f\u7528<\/td><\/tr><tr><td>\u7c97\u3044\u30b7\u30fc\u30c9\u5024<\/td><td>\u540c\u3058\u79d2\u306b\u5b9f\u884c\u3059\u308b\u3068\u540c\u3058\u5024\u304c\u751f\u6210<\/td><td>\u9ad8\u7cbe\u5ea6\u30af\u30ed\u30c3\u30af\u3068\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u4e71\u6570\u306e\u7d44\u307f\u5408\u308f\u305b<\/td><\/tr><tr><td>\u30e2\u30b8\u30e5\u30ed\u30d0\u30a4\u30a2\u30b9<\/td><td>\u7bc4\u56f2\u6307\u5b9a\u6642\u306b\u5747\u4e00\u5206\u5e03\u306b\u306a\u3089\u306a\u3044<\/td><td>uniform_distribution\u306e\u4f7f\u7528<\/td><\/tr><tr><td>\u30b9\u30ec\u30c3\u30c9\u5b89\u5168\u6027\u306a\u3057<\/td><td>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u3067\u554f\u984c\u767a\u751f<\/td><td>\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u5b9f\u88c5\u306e\u4f7f\u7528<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u4e88\u6e2c\u53ef\u80fd\u306a\u4e71\u6570\u751f\u6210\u3092\u9632\u3050\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u8003\u616e\u3057\u305f\u4e71\u6570\u751f\u6210\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u9069\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;array&gt;\n#include &lt;algorithm&gt;\n\nclass SecureRandomGenerator {\npublic:\n    \/\/ \u30bb\u30ad\u30e5\u30a2\u306a\u4e71\u6570\u30b7\u30fc\u30b1\u30f3\u30b9\u306e\u751f\u6210\n    std::vector&lt;uint8_t&gt; generate_secure_sequence(size_t length) {\n        std::random_device rd;\n        std::vector&lt;uint8_t&gt; sequence(length);\n\n        \/\/ \u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u4e71\u6570\u751f\u6210\u5668\u304c\u5229\u7528\u53ef\u80fd\u304b\u78ba\u8a8d\n        if (rd.entropy() &gt; 0.0) {\n            std::generate(sequence.begin(), sequence.end(), \n                [&amp;rd]() { return rd(); });\n        } else {\n            \/\/ \u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u30e1\u30ab\u30cb\u30ba\u30e0\n            std::mt19937_64 fallback_gen(\n                std::chrono::high_resolution_clock::now()\n                    .time_since_epoch().count());\n            std::uniform_int_distribution&lt;uint8_t&gt; dist;\n            std::generate(sequence.begin(), sequence.end(),\n                [&amp;fallback_gen, &amp;dist]() { return dist(fallback_gen); });\n        }\n\n        return sequence;\n    }\n\n    \/\/ \u30bb\u30ad\u30e5\u30a2\u306a\u30c8\u30fc\u30af\u30f3\u306e\u751f\u6210\n    std::string generate_secure_token(size_t length) {\n        static const char charset[] =\n            \"0123456789\"\n            \"ABCDEFGHIJKLMNOPQRSTUVWXYZ\"\n            \"abcdefghijklmnopqrstuvwxyz\";\n\n        std::random_device rd;\n        std::mt19937_64 gen(rd());\n        std::uniform_int_distribution&lt;size_t&gt; dist(0, sizeof(charset) - 2);\n\n        std::string token(length, 0);\n        std::generate_n(token.begin(), length,\n            [&amp;]() { return charset[dist(gen)]; });\n\n        return token;\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u4e71\u6570\u306e\u30c6\u30b9\u30c8\u65b9\u6cd5\u3068\u54c1\u8cea\u691c\u8a3c\u306e\u91cd\u8981\u6027<\/h3>\n\n\n\n<p>\u4e71\u6570\u751f\u6210\u5668\u306e\u54c1\u8cea\u3092\u691c\u8a3c\u3059\u308b\u305f\u3081\u306e\u57fa\u672c\u7684\u306a\u30c6\u30b9\u30c8\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;cassert&gt;\n#include &lt;map&gt;\n\nclass RandomTester {\npublic:\n    \/\/ \u5206\u5e03\u306e\u5747\u4e00\u6027\u3092\u30c6\u30b9\u30c8\n    bool test_distribution_uniformity(int num_samples, int num_buckets) {\n        std::mt19937 gen(std::random_device{}());\n        std::uniform_int_distribution&lt;&gt; dis(0, num_buckets - 1);\n\n        std::map&lt;int, int&gt; frequency;\n        for (int i = 0; i &lt; num_samples; ++i) {\n            ++frequency[dis(gen)];\n        }\n\n        \/\/ \u30ab\u30a4\u4e8c\u4e57\u691c\u5b9a\u306e\u7c21\u6613\u7248\n        double expected = static_cast&lt;double&gt;(num_samples) \/ num_buckets;\n        double chi_square = 0.0;\n\n        for (const auto&amp; pair : frequency) {\n            double diff = pair.second - expected;\n            chi_square += (diff * diff) \/ expected;\n        }\n\n        \/\/ 95%\u4fe1\u983c\u533a\u9593\u3067\u306e\u304a\u304a\u3088\u305d\u306e\u5224\u5b9a\n        return chi_square &lt;= num_buckets * 1.5;\n    }\n\n    \/\/ \u9023\u7d9a\u6027\u306e\u30c6\u30b9\u30c8\n    bool test_sequence_randomness(int num_samples) {\n        std::mt19937 gen(std::random_device{}());\n        std::uniform_int_distribution&lt;&gt; dis(0, 1);\n\n        int prev = dis(gen);\n        int transitions = 0;\n\n        for (int i = 1; i &lt; num_samples; ++i) {\n            int current = dis(gen);\n            if (current != prev) {\n                ++transitions;\n            }\n            prev = current;\n        }\n\n        \/\/ \u9077\u79fb\u56de\u6570\u304c\u59a5\u5f53\u306a\u7bc4\u56f2\u5185\u304b\u30c1\u30a7\u30c3\u30af\n        double transition_rate = static_cast&lt;double&gt;(transitions) \/ (num_samples - 1);\n        return transition_rate &gt; 0.45 &amp;&amp; transition_rate &lt; 0.55;\n    }\n};<\/pre>\n\n\n\n<p>\u30c6\u30b9\u30c8\u6642\u306e\u91cd\u8981\u306a\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5206\u5e03\u306e\u5747\u4e00\u6027<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5404\u5024\u306e\u51fa\u73fe\u983b\u5ea6\u304c\u671f\u5f85\u5024\u306b\u8fd1\u3044\u304b<\/li>\n\n\n\n<li>\u504f\u308a\u304c\u306a\u3044\u304b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u9023\u7d9a\u6027<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u540c\u3058\u5024\u304c\u7d9a\u304f\u78ba\u7387\u306f\u9069\u5207\u304b<\/li>\n\n\n\n<li>\u30d1\u30bf\u30fc\u30f3\u304c\u5f62\u6210\u3055\u308c\u3066\u3044\u306a\u3044\u304b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5468\u671f\u6027<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5341\u5206\u306a\u9577\u3055\u306e\u5468\u671f\u304c\u3042\u308b\u304b<\/li>\n\n\n\n<li>\u7e70\u308a\u8fd4\u3057\u30d1\u30bf\u30fc\u30f3\u304c\u898b\u3089\u308c\u306a\u3044\u304b<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30c6\u30b9\u30c8\u3092\u5b9a\u671f\u7684\u306b\u5b9f\u884c\u3057\u3001\u4e71\u6570\u751f\u6210\u5668\u306e\u54c1\u8cea\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-18\">C++\u4e71\u6570\u751f\u6210\u306e\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u4f8b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u30b2\u30fc\u30e0\u958b\u767a\u3067\u306e\u78ba\u7387\u8a08\u7b97\u3068\u30a2\u30a4\u30c6\u30e0\u30c9\u30ed\u30c3\u30d7\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u30b2\u30fc\u30e0\u958b\u767a\u3067\u306f\u3001\u4e71\u6570\u751f\u6210\u304c\u69d8\u3005\u306a\u5834\u9762\u3067\u6d3b\u7528\u3055\u308c\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u30a2\u30a4\u30c6\u30e0\u30c9\u30ed\u30c3\u30d7\u30b7\u30b9\u30c6\u30e0\u306e\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;map&gt;\n#include &lt;string&gt;\n\nclass ItemDropSystem {\npublic:\n    \/\/ \u30a2\u30a4\u30c6\u30e0\u3068\u30c9\u30ed\u30c3\u30d7\u7387\u306e\u5b9a\u7fa9\n    struct ItemData {\n        std::string name;\n        double drop_rate;  \/\/ \u30d1\u30fc\u30bb\u30f3\u30c8\u5358\u4f4d\n    };\n\n    ItemDropSystem() : gen_(std::random_device{}()) {}\n\n    \/\/ \u30a2\u30a4\u30c6\u30e0\u306e\u8ffd\u52a0\n    void add_item(const std::string&amp; name, double drop_rate) {\n        items_[name] = ItemData{name, drop_rate};\n    }\n\n    \/\/ \u30a2\u30a4\u30c6\u30e0\u30c9\u30ed\u30c3\u30d7\u306e\u5b9f\u884c\n    std::vector&lt;std::string&gt; generate_drops(int num_tries) {\n        std::vector&lt;std::string&gt; drops;\n        std::uniform_real_distribution&lt;&gt; dis(0.0, 100.0);\n\n        for (int i = 0; i &lt; num_tries; ++i) {\n            double roll = dis(gen_);\n            for (const auto&amp; item : items_) {\n                if (roll &lt;= item.second.drop_rate) {\n                    drops.push_back(item.first);\n                    break;\n                }\n            }\n        }\n        return drops;\n    }\n\nprivate:\n    std::mt19937 gen_;\n    std::map&lt;std::string, ItemData&gt; items_;\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid game_example() {\n    ItemDropSystem drop_system;\n\n    \/\/ \u30a2\u30a4\u30c6\u30e0\u306e\u8a2d\u5b9a\n    drop_system.add_item(\"\u30ec\u30a2\u30bd\u30fc\u30c9\", 5.0);   \/\/ 5%\n    drop_system.add_item(\"\u30de\u30b8\u30c3\u30af\u30dd\u30fc\u30b7\u30e7\u30f3\", 15.0); \/\/ 15%\n    drop_system.add_item(\"\u901a\u5e38\u30a2\u30a4\u30c6\u30e0\", 80.0);  \/\/ 80%\n\n    \/\/ 10\u56de\u306e\u30c9\u30ed\u30c3\u30d7\u751f\u6210\n    auto drops = drop_system.generate_drops(10);\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-20\">\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306e\u30ce\u30a4\u30ba\u751f\u6210<\/h3>\n\n\n\n<p>\u7269\u7406\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3084\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u3067\u306e\u30ce\u30a4\u30ba\u751f\u6210\u306e\u5b9f\u88c5\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;vector&gt;\n\nclass NoiseGenerator {\npublic:\n    NoiseGenerator() : gen_(std::random_device{}()) {}\n\n    \/\/ \u30d1\u30fc\u30ea\u30f3\u30ce\u30a4\u30ba\u306e\u7c21\u6613\u5b9f\u88c5\n    std::vector&lt;double&gt; generate_perlin_noise(size_t size, double frequency = 1.0) {\n        std::vector&lt;double&gt; noise(size);\n        std::normal_distribution&lt;&gt; noise_dist(0.0, 1.0);\n\n        for (size_t i = 0; i &lt; size; ++i) {\n            double x = static_cast&lt;double&gt;(i) * frequency;\n            noise[i] = interpolated_noise(x, noise_dist);\n        }\n\n        return noise;\n    }\n\nprivate:\n    double interpolated_noise(double x, std::normal_distribution&lt;&gt;&amp; dist) {\n        int integer_x = static_cast&lt;int&gt;(x);\n        double fractional_x = x - integer_x;\n\n        double v1 = smooth_noise(integer_x, dist);\n        double v2 = smooth_noise(integer_x + 1, dist);\n\n        \/\/ \u30b3\u30b5\u30a4\u30f3\u88dc\u9593\n        double cos_ratio = (1 - std::cos(fractional_x * 3.14159)) * 0.5;\n        return v1 * (1 - cos_ratio) + v2 * cos_ratio;\n    }\n\n    double smooth_noise(int x, std::normal_distribution&lt;&gt;&amp; dist) {\n        return dist(gen_) * 0.5 + dist(gen_) * 0.3 + dist(gen_) * 0.2;\n    }\n\n    std::mt19937 gen_;\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">\u30bb\u30ad\u30e5\u30a2\u306a\u6697\u53f7\u5316\u30ad\u30fc\u306e\u751f\u6210\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u6697\u53f7\u5316\u30ad\u30fc\u306e\u751f\u6210\u306b\u306f\u3001\u7279\u306b\u5b89\u5168\u306a\u4e71\u6570\u751f\u6210\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;array&gt;\n#include &lt;iomanip&gt;\n#include &lt;sstream&gt;\n\nclass CryptoKeyGenerator {\npublic:\n    \/\/ \u30bb\u30ad\u30e5\u30a2\u306a\u30ad\u30fc\u306e\u751f\u6210\n    static std::vector&lt;uint8_t&gt; generate_key(size_t key_length) {\n        std::random_device rd;\n        std::vector&lt;uint8_t&gt; key(key_length);\n\n        \/\/ \u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u4e71\u6570\u751f\u6210\u5668\u304c\u5229\u7528\u53ef\u80fd\u304b\u78ba\u8a8d\n        if (rd.entropy() &gt; 0.0) {\n            std::generate(key.begin(), key.end(), \n                [&amp;rd]() { return static_cast&lt;uint8_t&gt;(rd()); });\n        } else {\n            throw std::runtime_error(\"Secure random device not available\");\n        }\n\n        return key;\n    }\n\n    \/\/ \u30ad\u30fc\u306e16\u9032\u6570\u8868\u73fe\u3092\u53d6\u5f97\n    static std::string key_to_hex(const std::vector&lt;uint8_t&gt;&amp; key) {\n        std::stringstream ss;\n        ss &lt;&lt; std::hex &lt;&lt; std::setfill('0');\n        for (auto byte : key) {\n            ss &lt;&lt; std::setw(2) &lt;&lt; static_cast&lt;int&gt;(byte);\n        }\n        return ss.str();\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-22\">\u30e2\u30f3\u30c6\u30ab\u30eb\u30ed\u6cd5\u3092\u7528\u3044\u305f\u6570\u5024\u8a08\u7b97\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u30e2\u30f3\u30c6\u30ab\u30eb\u30ed\u6cd5\u3092\u4f7f\u7528\u3057\u3066\u5186\u5468\u7387\u3092\u8a08\u7b97\u3059\u308b\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;cmath&gt;\n\nclass MonteCarloSimulation {\npublic:\n    MonteCarloSimulation() : gen_(std::random_device{}()), dist_(-1.0, 1.0) {}\n\n    \/\/ \u30e2\u30f3\u30c6\u30ab\u30eb\u30ed\u6cd5\u306b\u3088\u308b\u5186\u5468\u7387\u306e\u8a08\u7b97\n    double calculate_pi(int num_points) {\n        int points_inside = 0;\n\n        for (int i = 0; i &lt; num_points; ++i) {\n            double x = dist_(gen_);\n            double y = dist_(gen_);\n\n            if (x*x + y*y &lt;= 1.0) {\n                ++points_inside;\n            }\n        }\n\n        return 4.0 * points_inside \/ num_points;\n    }\n\nprivate:\n    std::mt19937 gen_;\n    std::uniform_real_distribution&lt;&gt; dist_;\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-23\">\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u81ea\u52d5\u751f\u6210\u30c4\u30fc\u30eb\u306e\u4f5c\u6210<\/h3>\n\n\n\n<p>\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u3092\u81ea\u52d5\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9\u306e\u5b9f\u88c5\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;random&gt;\n#include &lt;string&gt;\n\nclass TestDataGenerator {\npublic:\n    TestDataGenerator() : gen_(std::random_device{}()) {}\n\n    \/\/ \u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u306e\u751f\u6210\n    std::string generate_string(size_t length) {\n        static const char charset[] =\n            \"0123456789\"\n            \"ABCDEFGHIJKLMNOPQRSTUVWXYZ\"\n            \"abcdefghijklmnopqrstuvwxyz\";\n\n        std::uniform_int_distribution&lt;&gt; dist(0, sizeof(charset) - 2);\n        std::string str(length, 0);\n        std::generate_n(str.begin(), length,\n            [&amp;]() { return charset[dist(gen_)]; });\n        return str;\n    }\n\n    \/\/ \u30c6\u30b9\u30c8\u7528\u306e\u65e5\u4ed8\u751f\u6210\n    std::string generate_date() {\n        std::uniform_int_distribution&lt;&gt; year(2000, 2024);\n        std::uniform_int_distribution&lt;&gt; month(1, 12);\n        std::uniform_int_distribution&lt;&gt; day(1, 28);  \/\/ \u7c21\u7565\u5316\u306e\u305f\u308128\u65e5\u307e\u3067\n\n        std::stringstream ss;\n        ss &lt;&lt; year(gen_) &lt;&lt; \"-\"\n           &lt;&lt; std::setfill('0') &lt;&lt; std::setw(2) &lt;&lt; month(gen_) &lt;&lt; \"-\"\n           &lt;&lt; std::setfill('0') &lt;&lt; std::setw(2) &lt;&lt; day(gen_);\n        return ss.str();\n    }\n\n    \/\/ \u30c6\u30b9\u30c8\u7528\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u751f\u6210\n    std::string generate_email() {\n        return generate_string(8) + \"@example.com\";\n    }\n\n    \/\/ \u30c6\u30b9\u30c8\u7528\u306e\u6570\u5024\u30c7\u30fc\u30bf\u751f\u6210\n    template&lt;typename T&gt;\n    std::vector&lt;T&gt; generate_numeric_data(size_t size, T min, T max) {\n        std::vector&lt;T&gt; data(size);\n        std::uniform_real_distribution&lt;T&gt; dist(min, max);\n        std::generate(data.begin(), data.end(),\n            [&amp;]() { return dist(gen_); });\n        return data;\n    }\n\nprivate:\n    std::mt19937 gen_;\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u88c5\u4f8b\u306f\u3001\u5b9f\u969b\u306e\u958b\u767a\u73fe\u5834\u3067\u76f4\u9762\u3059\u308b\u69d8\u3005\u306a\u8981\u4ef6\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u30b3\u30fc\u30c9\u306f\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u62e1\u5f35\u3084\u4fee\u6b63\u304c\u53ef\u80fd\u306a\u57fa\u672c\u7684\u306a\u69cb\u9020\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":{"0":"post-1902","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-cpp","7":"nothumb"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1902"}],"version-history":[{"count":2,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1902\/revisions"}],"predecessor-version":[{"id":1907,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1902\/revisions\/1907"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}