{"id":1867,"date":"2025-03-24T08:49:45","date_gmt":"2025-03-23T23:49:45","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1867"},"modified":"2025-03-24T08:49:45","modified_gmt":"2025-03-23T23:49:45","slug":"c%e3%81%aelong-long%e5%9e%8b%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9a%e6%ad%a3%e3%81%97%e3%81%84%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%a8%e5%ae%9f%e8%b7%b5%e7%9a%84%e3%81%aa5%e3%81%a4","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1867","title":{"rendered":"C++\u306elong long\u578b\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a\u6b63\u3057\u3044\u4f7f\u3044\u65b9\u3068\u5b9f\u8df5\u7684\u306a5\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\">long long\u578b\u306e\u57fa\u790e\u77e5\u8b58<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">64\u30d3\u30c3\u30c8\u6574\u6570\u578b\u3068\u3057\u3066\u306elong long\u306e\u7279\u5fb4<\/a>      <\/li>      <li>        <a href=\"#i-2\">int\u578b\u3068\u306e\u6c7a\u5b9a\u7684\u306a\u9055\u3044<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3068\u305d\u306e\u5f71\u97ff<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-4\">long long\u578b\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u7136\u6027<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">\u5927\u304d\u306a\u6570\u5024\u8a08\u7b97\u304c\u5fc5\u8981\u306a\u30b1\u30fc\u30b9<\/a>      <\/li>      <li>        <a href=\"#i-6\">\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u5bfe\u7b56\u3068\u3057\u3066\u306e\u6d3b\u7528<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-7\">64\u30d3\u30c3\u30c8\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-8\">\u5b9f\u8df5\u7684\u306along long\u578b\u306e\u6d3b\u7528\u4f8b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-9\">\u91d1\u878d\u8a08\u7b97\u3067\u306e\u7cbe\u5ea6\u4fdd\u8a3c<\/a>      <\/li>      <li>        <a href=\"#i-10\">\u30d3\u30c3\u30b0\u30c7\u30fc\u30bf\u51e6\u7406\u3067\u306e\u6d3b\u7528\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-11\">\u30b2\u30fc\u30e0\u958b\u767a\u3067\u306e\u30b9\u30b3\u30a2\u7ba1\u7406<\/a>      <\/li>      <li>        <a href=\"#i-12\">\u79d1\u5b66\u8a08\u7b97\u3067\u306e\u6d3b\u7528\u30b7\u30fc\u30f3<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-13\">\u6642\u523b\u51e6\u7406\u3067\u306e\u5fdc\u7528\u4f8b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-14\">long long\u578b\u4f7f\u7528\u6642\u306e\u6ce8\u610f\u70b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-15\">\u30af\u30ed\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u958b\u767a\u3067\u306e\u4e92\u63db\u6027\u78ba\u4fdd<\/a>      <\/li>      <li>        <a href=\"#i-16\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-17\">\u578b\u5909\u63db\u6642\u306e\u30d4\u30c3\u30c8\u30d5\u30a9\u30fc\u30eb<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-18\">long long\u578b\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-19\">\u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u3092\u610f\u8b58\u3057\u305f\u6700\u9069\u5316\u624b\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-20\">SIMD\u547d\u4ee4\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u65b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-21\">\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u6700\u9069\u5316\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u6d3b\u7528<\/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\">long long\u578b\u306e\u57fa\u790e\u77e5\u8b58<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">64\u30d3\u30c3\u30c8\u6574\u6570\u578b\u3068\u3057\u3066\u306elong long\u306e\u7279\u5fb4<\/h3>\n\n\n\n<p>long long\u578b\u306f\u3001C++\u306b\u304a\u3044\u306664\u30d3\u30c3\u30c8\u4ee5\u4e0a\u306e\u7cbe\u5ea6\u3092\u6301\u3064\u6574\u6570\u578b\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002C++11\u4ee5\u964d\u3067\u6a19\u6e96\u5316\u3055\u308c\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7279\u5fb4\u3092\u6301\u3063\u3066\u3044\u307e\u3059\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=\"\">\/\/ long long\u578b\u306e\u57fa\u672c\u7684\u306a\u7279\u5fb4\n#include &lt;iostream&gt;\n#include &lt;limits&gt;\n\nint main() {\n    \/\/ \u5024\u306e\u7bc4\u56f2\u3092\u78ba\u8a8d\n    std::cout &lt;&lt; \"long long\u578b\u306e\u6700\u5c0f\u5024: \" \n              &lt;&lt; std::numeric_limits&lt;long long&gt;::min() &lt;&lt; \"\\n\";  \/\/ -9223372036854775808\n    std::cout &lt;&lt; \"long long\u578b\u306e\u6700\u5927\u5024: \" \n              &lt;&lt; std::numeric_limits&lt;long long&gt;::max() &lt;&lt; \"\\n\";  \/\/ 9223372036854775807\n\n    \/\/ \u30b5\u30a4\u30ba\u306e\u78ba\u8a8d\n    std::cout &lt;&lt; \"long long\u578b\u306e\u30b5\u30a4\u30ba: \" \n              &lt;&lt; sizeof(long long) &lt;&lt; \" bytes\\n\";  \/\/ \u901a\u5e38\u306f8\u30d0\u30a4\u30c8\n\n    return 0;\n}<\/pre>\n\n\n\n<p>\u4e3b\u306a\u7279\u5fb4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6700\u5c0f\u3067\u308264\u30d3\u30c3\u30c8\uff088\u30d0\u30a4\u30c8\uff09\u306e\u30b5\u30a4\u30ba\u3092\u4fdd\u8a3c<\/li>\n\n\n\n<li>\u7b26\u53f7\u4ed8\u304d\u6574\u6570\u3068\u3057\u3066-2^63\u304b\u30892^63-1\u307e\u3067\u306e\u7bc4\u56f2\u3092\u30ab\u30d0\u30fc<\/li>\n\n\n\n<li>\u7b26\u53f7\u306a\u3057\u7248\uff08unsigned long long\uff09\u306f0\u304b\u30892^64-1\u307e\u3067\u306e\u7bc4\u56f2\u3092\u30ab\u30d0\u30fc<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">int\u578b\u3068\u306e\u6c7a\u5b9a\u7684\u306a\u9055\u3044<\/h3>\n\n\n\n<p>int\u578b\u3068long long\u578b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u91cd\u8981\u306a\u9055\u3044\u304c\u3042\u308a\u307e\u3059\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;iostream&gt;\n\nint main() {\n    \/\/ \u5927\u304d\u306a\u6570\u5024\u306e\u8a08\u7b97\u3067\u306e\u9055\u3044\n    int normal_int = 2147483647;  \/\/ INT_MAX\u306e\u5024\n    long long large_num = 2147483647LL;  \/\/ LL\u30b5\u30d5\u30a3\u30c3\u30af\u30b9\u3067\u660e\u793a\u7684\u306blong long\u578b\u3092\u6307\u5b9a\n\n    \/\/ \u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u306e\u4f8b\n    std::cout &lt;&lt; \"int\u578b\u3067\u306e\u8a08\u7b97: \" &lt;&lt; normal_int + 1 &lt;&lt; \"\\n\";  \/\/ \u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u767a\u751f\n    std::cout &lt;&lt; \"long long\u578b\u3067\u306e\u8a08\u7b97: \" &lt;&lt; large_num + 1 &lt;&lt; \"\\n\";  \/\/ \u6b63\u5e38\u306b\u8a08\u7b97\u53ef\u80fd\n\n    return 0;\n}<\/pre>\n\n\n\n<p>\u4e3b\u306a\u9055\u3044\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u30b5\u30a4\u30ba\uff08int: \u901a\u5e384\u30d0\u30a4\u30c8 vs long long: 8\u30d0\u30a4\u30c8\uff09<\/li>\n\n\n\n<li>\u5024\u306e\u7bc4\u56f2\uff08int: \u00b12^31 vs long long: \u00b12^63\uff09<\/li>\n\n\n\n<li>\u30ea\u30c6\u30e9\u30eb\u306e\u8a18\u8ff0\u65b9\u6cd5\uff08LL\u30b5\u30d5\u30a3\u30c3\u30af\u30b9\u306e\u5fc5\u8981\u6027\uff09<\/li>\n\n\n\n<li>\u6f14\u7b97\u6642\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u7279\u6027<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3068\u305d\u306e\u5f71\u97ff<\/h3>\n\n\n\n<p>long long\u578b\u306e\u4f7f\u7528\u306f\u3001\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306b\u76f4\u63a5\u7684\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\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;iostream&gt;\n#include &lt;vector&gt;\n\nint main() {\n    \/\/ \u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6bd4\u8f03\n    std::vector&lt;int&gt; int_array(1000000);          \/\/ \u7d044MB\n    std::vector&lt;long long&gt; long_array(1000000);   \/\/ \u7d048MB\n\n    std::cout &lt;&lt; \"int\u914d\u5217\u306e\u30b5\u30a4\u30ba: \" \n              &lt;&lt; sizeof(int_array[0]) * int_array.size() \/ 1024 \/ 1024 &lt;&lt; \"MB\\n\";\n    std::cout &lt;&lt; \"long long\u914d\u5217\u306e\u30b5\u30a4\u30ba: \" \n              &lt;&lt; sizeof(long_array[0]) * long_array.size() \/ 1024 \/ 1024 &lt;&lt; \"MB\\n\";\n\n    return 0;\n}<\/pre>\n\n\n\n<p>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u5f71\u97ff\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387\u3078\u306e\u5f71\u97ff<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3088\u308a\u591a\u304f\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u3092\u6d88\u8cbb<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u30df\u30b9\u306e\u53ef\u80fd\u6027\u304c\u5897\u52a0<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u5e2f\u57df\u5e45\u3078\u306e\u5f71\u97ff<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u306e\u8aad\u307f\u66f8\u304d\u306b\u5fc5\u8981\u306a\u5e2f\u57df\u5e45\u304c\u5897\u52a0<\/li>\n\n\n\n<li>\u5927\u898f\u6a21\u306a\u914d\u5217\u64cd\u4f5c\u6642\u306b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30b7\u30b9\u30c6\u30e0\u30ea\u30bd\u30fc\u30b9\u3078\u306e\u5f71\u97ff<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u3067\u306e\u4f7f\u7528\u6642\u306b\u30e1\u30e2\u30ea\u5727\u8feb\u306e\u53ef\u80fd\u6027<\/li>\n\n\n\n<li>\u7d44\u307f\u8fbc\u307f\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u4f7f\u7528\u6642\u306b\u306f\u7279\u306b\u6ce8\u610f\u304c\u5fc5\u8981<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u7279\u5fb4\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\u578b\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u5fc5\u8981\u4ee5\u4e0a\u306b\u5927\u304d\u306a\u578b\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u4e0d\u5fc5\u8981\u306a\u30e1\u30e2\u30ea\u6d88\u8cbb\u3084\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u4f4e\u4e0b\u3092\u62db\u304f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">long long\u578b\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u7136\u6027<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u5927\u304d\u306a\u6570\u5024\u8a08\u7b97\u304c\u5fc5\u8981\u306a\u30b1\u30fc\u30b9<\/h3>\n\n\n\n<p>\u5b9f\u52d9\u958b\u767a\u306b\u304a\u3044\u3066\u3001\u5927\u304d\u306a\u6570\u5024\u3092\u6271\u3046\u5834\u9762\u306f\u4e88\u60f3\u4ee5\u4e0a\u306b\u591a\u304f\u5b58\u5728\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u72b6\u6cc1\u3067\u306f\u3001long long\u578b\u306e\u4f7f\u7528\u304c\u5fc5\u9808\u3068\u306a\u308a\u307e\u3059\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;iostream&gt;\n\nint main() {\n    \/\/ \u4eba\u53e3\u7d71\u8a08\u3067\u306e\u4f7f\u7528\u4f8b\n    long long world_population = 8000000000LL;  \/\/ 80\u5104\u4eba\n    long long daily_transactions = 1000000000LL; \/\/ 10\u5104\u56de\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\n\n    \/\/ int\u578b\u3067\u306f\u8868\u73fe\u3067\u304d\u306a\u3044\u5927\u304d\u306a\u8a08\u7b97\n    long long total_microseconds = 365LL * 24 * 60 * 60 * 1000000; \/\/ 1\u5e74\u9593\u306e\u30de\u30a4\u30af\u30ed\u79d2\n\n    std::cout &lt;&lt; \"1\u5e74\u9593\u306e\u30de\u30a4\u30af\u30ed\u79d2\u6570: \" &lt;&lt; total_microseconds &lt;&lt; \"\\n\";\n    \/\/ 31,536,000,000,000 \u30de\u30a4\u30af\u30ed\u79d2\n\n    return 0;\n}<\/pre>\n\n\n\n<p>\u4e3b\u306a\u7528\u9014\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4eba\u53e3\u7d71\u8a08\u3084\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u306e\u96c6\u8a08<\/li>\n\n\n\n<li>\u30de\u30a4\u30af\u30ed\u79d2\u5358\u4f4d\u306e\u6642\u9593\u8a08\u7b97<\/li>\n\n\n\n<li>\u91d1\u878d\u53d6\u5f15\u3067\u306e\u901a\u8ca8\u8a08\u7b97<\/li>\n\n\n\n<li>\u5929\u6587\u5b66\u7684\u306a\u8ddd\u96e2\u3084\u8cea\u91cf\u306e\u8a08\u7b97<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u5bfe\u7b56\u3068\u3057\u3066\u306e\u6d3b\u7528<\/h3>\n\n\n\n<p>\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u306f\u6df1\u523b\u306a\u30d0\u30b0\u306e\u539f\u56e0\u3068\u306a\u308a\u5f97\u307e\u3059\u3002long long\u578b\u306e\u4f7f\u7528\u306f\u3001\u3053\u306e\u3088\u3046\u306a\u554f\u984c\u3092\u672a\u7136\u306b\u9632\u3050\u52b9\u679c\u7684\u306a\u5bfe\u7b56\u3068\u306a\u308a\u307e\u3059\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;iostream&gt;\n#include &lt;vector&gt;\n\nclass TransactionManager {\nprivate:\n    long long total_amount = 0;  \/\/ \u7dcf\u53d6\u5f15\u984d\n\npublic:\n    bool addTransaction(long long amount) {\n        \/\/ \u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u691c\u51fa\n        if (amount &gt; 0 &amp;&amp; total_amount &gt; std::numeric_limits&lt;long long&gt;::max() - amount) {\n            std::cerr &lt;&lt; \"\u8b66\u544a: \u53d6\u5f15\u984d\u304c\u5927\u304d\u3059\u304e\u307e\u3059\\n\";\n            return false;\n        }\n\n        total_amount += amount;\n        return true;\n    }\n\n    long long getTotalAmount() const {\n        return total_amount;\n    }\n};\n\nint main() {\n    TransactionManager manager;\n\n    \/\/ \u5927\u304d\u306a\u53d6\u5f15\u984d\u3092\u5b89\u5168\u306b\u51e6\u7406\n    manager.addTransaction(1000000000000LL);  \/\/ 1\u5146\u5186\n    manager.addTransaction(2000000000000LL);  \/\/ 2\u5146\u5186\n\n    std::cout &lt;&lt; \"\u7dcf\u53d6\u5f15\u984d: \" &lt;&lt; manager.getTotalAmount() &lt;&lt; \"\u5186\\n\";\n    return 0;\n}<\/pre>\n\n\n\n<p>\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u5bfe\u7b56\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a08\u7b97\u524d\u306e\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u691c\u51fa<\/li>\n\n\n\n<li>\u5b89\u5168\u306a\u578b\u5909\u63db\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u9069\u5207\u306a\u5b9f\u88c5<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">64\u30d3\u30c3\u30c8\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/h3>\n\n\n\n<p>64\u30d3\u30c3\u30c8\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001long long\u578b\u306e\u4f7f\u7528\u304c\u6700\u9069\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5f15\u304d\u51fa\u3059\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\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;iostream&gt;\n#include &lt;chrono&gt;\n#include &lt;vector&gt;\n#include &lt;algorithm&gt;\n\n\/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6e2c\u5b9a\u7528\u306e\u95a2\u6570\ntemplate&lt;typename T&gt;\ndouble measureSumPerformance(const std::vector&lt;T&gt;&amp; numbers) {\n    auto start = std::chrono::high_resolution_clock::now();\n\n    T sum = 0;\n    for (const auto&amp; num : numbers) {\n        sum += num;\n    }\n\n    auto end = std::chrono::high_resolution_clock::now();\n    std::chrono::duration&lt;double&gt; diff = end - start;\n\n    return diff.count();\n}\n\nint main() {\n    const size_t size = 100000000;  \/\/ 1\u5104\u500b\u306e\u30c7\u30fc\u30bf\n\n    \/\/ int\u578b\u3068long long\u578b\u306e\u30c7\u30fc\u30bf\u3092\u6e96\u5099\n    std::vector&lt;int&gt; int_numbers(size);\n    std::vector&lt;long long&gt; ll_numbers(size);\n\n    \/\/ \u30c7\u30fc\u30bf\u3092\u521d\u671f\u5316\n    for (size_t i = 0; i &lt; size; ++i) {\n        int_numbers[i] = static_cast&lt;int&gt;(i);\n        ll_numbers[i] = static_cast&lt;long long&gt;(i);\n    }\n\n    \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03\n    double int_time = measureSumPerformance(int_numbers);\n    double ll_time = measureSumPerformance(ll_numbers);\n\n    std::cout &lt;&lt; \"int\u578b\u306e\u51e6\u7406\u6642\u9593: \" &lt;&lt; int_time &lt;&lt; \"\u79d2\\n\";\n    std::cout &lt;&lt; \"long long\u578b\u306e\u51e6\u7406\u6642\u9593: \" &lt;&lt; ll_time &lt;&lt; \"\u79d2\\n\";\n\n    return 0;\n}<\/pre>\n\n\n\n<p>64\u30d3\u30c3\u30c8\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u6700\u9069\u5316\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30cd\u30a4\u30c6\u30a3\u30d6\u30ef\u30fc\u30c9\u30b5\u30a4\u30ba\u306e\u6d3b\u7528<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CPU\u5185\u90e8\u3067\u306e\u51e6\u7406\u52b9\u7387\u306e\u5411\u4e0a<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u6700\u9069\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>SIMD\u547d\u4ee4\u306e\u52b9\u679c\u7684\u306a\u5229\u7528<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3088\u308a\u5927\u304d\u306a\u30c7\u30fc\u30bf\u306e\u4e26\u5217\u51e6\u7406\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u30d9\u30af\u30c8\u30eb\u6f14\u7b97\u306e\u52b9\u7387\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u5229\u7528\u306e\u6700\u9069\u5316<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u306e\u6539\u5584<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u306e\u52b9\u7387\u7684\u306a\u5229\u7528<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001long long\u578b\u306e\u4f7f\u7528\u306f\u5358\u306a\u308b\u30c7\u30fc\u30bf\u578b\u306e\u9078\u629e\u4ee5\u4e0a\u306e\u610f\u5473\u3092\u6301\u3061\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3084\u4fe1\u983c\u6027\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u9069\u5207\u306a\u72b6\u6cc1\u3067\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u3067\u52b9\u7387\u7684\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-8\">\u5b9f\u8df5\u7684\u306along long\u578b\u306e\u6d3b\u7528\u4f8b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u91d1\u878d\u8a08\u7b97\u3067\u306e\u7cbe\u5ea6\u4fdd\u8a3c<\/h3>\n\n\n\n<p>\u91d1\u878d\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u7cbe\u5ea6\u306e\u9ad8\u3044\u6570\u5024\u8a08\u7b97\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002long long\u578b\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5c0f\u6570\u70b9\u4ee5\u4e0b\u306e\u8a08\u7b97\u3082\u542b\u3081\u3066\u9ad8\u7cbe\u5ea6\u306a\u8a08\u7b97\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\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;iostream&gt;\n#include &lt;iomanip&gt;\n\nclass MoneyCalculator {\nprivate:\n    \/\/ \u91d1\u984d\u3092\u5c0f\u6570\u70b9\u4ee5\u4e0b2\u6841\u307e\u3067\u4fdd\u6301\uff08\u6574\u6570\u5024\u3068\u3057\u3066\u7ba1\u7406\uff09\n    long long amount_cents;\n\npublic:\n    MoneyCalculator(double amount) : amount_cents(static_cast&lt;long long&gt;(amount * 100)) {}\n\n    \/\/ \u5229\u606f\u8a08\u7b97\uff08\u5e74\u5229\u7387\u3092\u30d1\u30fc\u30bb\u30f3\u30c8\u3067\u6307\u5b9a\uff09\n    void addInterest(double interest_rate) {\n        \/\/ \u5229\u606f\u8a08\u7b97\u6642\u306e\u4e38\u3081\u8aa4\u5dee\u3092\u9632\u3050\n        long long interest = (amount_cents * static_cast&lt;long long&gt;(interest_rate * 100)) \/ 10000;\n        amount_cents += interest;\n    }\n\n    \/\/ \u73fe\u5728\u306e\u91d1\u984d\u3092\u8868\u793a\n    void printAmount() const {\n        std::cout &lt;&lt; std::fixed &lt;&lt; std::setprecision(2)\n                  &lt;&lt; static_cast&lt;double&gt;(amount_cents) \/ 100.0 &lt;&lt; std::endl;\n    }\n};\n\nint main() {\n    MoneyCalculator account(1000000.00);  \/\/ 100\u4e07\u5186\n    account.addInterest(0.05);            \/\/ 0.05%\u306e\u5229\u606f\u3092\u52a0\u7b97\n    std::cout &lt;&lt; \"\u5229\u606f\u4ed8\u4e0e\u5f8c\u306e\u91d1\u984d: \";\n    account.printAmount();\n    return 0;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u30d3\u30c3\u30b0\u30c7\u30fc\u30bf\u51e6\u7406\u3067\u306e\u6d3b\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u96c6\u8a08\u3084\u7d71\u8a08\u51e6\u7406\u3067\u306f\u3001\u5927\u304d\u306a\u6570\u5024\u3092\u6271\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\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;iostream&gt;\n#include &lt;vector&gt;\n#include &lt;random&gt;\n#include &lt;thread&gt;\n\nclass BigDataProcessor {\nprivate:\n    std::vector&lt;long long&gt; data;\n    size_t chunk_size;\n\n    \/\/ \u30c1\u30e3\u30f3\u30af\u5358\u4f4d\u3067\u306e\u96c6\u8a08\u51e6\u7406\n    long long processChunk(size_t start, size_t end) const {\n        long long sum = 0;\n        for (size_t i = start; i &lt; end &amp;&amp; i &lt; data.size(); ++i) {\n            sum += data[i];\n        }\n        return sum;\n    }\n\npublic:\n    BigDataProcessor(size_t size) : data(size), chunk_size(size \/ std::thread::hardware_concurrency()) {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u751f\u6210\n        std::random_device rd;\n        std::mt19937_64 gen(rd());\n        std::uniform_int_distribution&lt;long long&gt; dis(1, 1000000);\n\n        for (auto&amp; value : data) {\n            value = dis(gen);\n        }\n    }\n\n    \/\/ \u4e26\u5217\u51e6\u7406\u306b\u3088\u308b\u9ad8\u901f\u96c6\u8a08\n    long long calculateTotal() {\n        std::vector&lt;std::thread&gt; threads;\n        std::vector&lt;long long&gt; partial_sums(std::thread::hardware_concurrency());\n\n        \/\/ \u30b9\u30ec\u30c3\u30c9\u5206\u5272\u51e6\u7406\n        for (size_t i = 0; i &lt; partial_sums.size(); ++i) {\n            threads.emplace_back([this, i, &amp;partial_sums]() {\n                size_t start = i * chunk_size;\n                size_t end = (i + 1) * chunk_size;\n                partial_sums[i] = processChunk(start, end);\n            });\n        }\n\n        \/\/ \u7d50\u679c\u306e\u96c6\u8a08\n        for (auto&amp; thread : threads) {\n            thread.join();\n        }\n\n        return std::accumulate(partial_sums.begin(), partial_sums.end(), 0LL);\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u30b2\u30fc\u30e0\u958b\u767a\u3067\u306e\u30b9\u30b3\u30a2\u7ba1\u7406<\/h3>\n\n\n\n<p>\u30b2\u30fc\u30e0\u3067\u306f\u3001\u5927\u304d\u306a\u30b9\u30b3\u30a2\u3084\u7d71\u8a08\u5024\u3092\u6271\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\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;iostream&gt;\n#include &lt;map&gt;\n#include &lt;string&gt;\n\nclass GameScoreManager {\nprivate:\n    struct PlayerStats {\n        long long total_score;\n        long long highest_combo;\n        long long play_time_seconds;\n\n        PlayerStats() : total_score(0), highest_combo(0), play_time_seconds(0) {}\n    };\n\n    std::map&lt;std::string, PlayerStats&gt; player_stats;\n\npublic:\n    void addScore(const std::string&amp; player_id, long long score, long long combo) {\n        auto&amp; stats = player_stats[player_id];\n\n        \/\/ \u30b9\u30b3\u30a2\u52a0\u7b97\uff08\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u5bfe\u7b56\u4ed8\u304d\uff09\n        if (score &gt; 0 &amp;&amp; stats.total_score &lt;= std::numeric_limits&lt;long long&gt;::max() - score) {\n            stats.total_score += score;\n        }\n\n        \/\/ \u6700\u9ad8\u30b3\u30f3\u30dc\u66f4\u65b0\n        stats.highest_combo = std::max(stats.highest_combo, combo);\n    }\n\n    void updatePlayTime(const std::string&amp; player_id, long long seconds) {\n        auto&amp; stats = player_stats[player_id];\n        stats.play_time_seconds += seconds;\n    }\n\n    void displayStats(const std::string&amp; player_id) const {\n        auto it = player_stats.find(player_id);\n        if (it != player_stats.end()) {\n            const auto&amp; stats = it-&gt;second;\n            std::cout &lt;&lt; \"\u30d7\u30ec\u30a4\u30e4\u30fcID: \" &lt;&lt; player_id &lt;&lt; \"\\n\"\n                      &lt;&lt; \"\u7dcf\u30b9\u30b3\u30a2: \" &lt;&lt; stats.total_score &lt;&lt; \"\\n\"\n                      &lt;&lt; \"\u6700\u9ad8\u30b3\u30f3\u30dc: \" &lt;&lt; stats.highest_combo &lt;&lt; \"\\n\"\n                      &lt;&lt; \"\u7dcf\u30d7\u30ec\u30a4\u6642\u9593: \" &lt;&lt; stats.play_time_seconds \/ 3600 &lt;&lt; \"\u6642\u9593 \"\n                      &lt;&lt; (stats.play_time_seconds % 3600) \/ 60 &lt;&lt; \"\u5206\\n\";\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u79d1\u5b66\u8a08\u7b97\u3067\u306e\u6d3b\u7528\u30b7\u30fc\u30f3<\/h3>\n\n\n\n<p>\u79d1\u5b66\u8a08\u7b97\u3067\u306f\u3001\u975e\u5e38\u306b\u5927\u304d\u306a\u6570\u5024\u3084\u7cbe\u5bc6\u306a\u8a08\u7b97\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\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;iostream&gt;\n#include &lt;cmath&gt;\n\nclass ScientificCalculator {\npublic:\n    \/\/ \u5929\u6587\u8ddd\u96e2\u306e\u8a08\u7b97\uff08\u5149\u5e74\u5358\u4f4d\uff09\n    static long long calculateLightYearDistance(double parsecs) {\n        const long long LIGHT_YEARS_PER_PARSEC = 3;\n        return static_cast&lt;long long&gt;(parsecs * LIGHT_YEARS_PER_PARSEC);\n    }\n\n    \/\/ \u539f\u5b50\u30ec\u30d9\u30eb\u306e\u7c92\u5b50\u6570\u8a08\u7b97\n    static long long calculateParticleCount(double mass_grams, double atomic_mass) {\n        const long long AVOGADRO_NUMBER = 602214076000000000000LL; \/\/ 6.02214076\u00d710^23\n        return static_cast&lt;long long&gt;(mass_grams \/ atomic_mass * AVOGADRO_NUMBER);\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u6642\u523b\u51e6\u7406\u3067\u306e\u5fdc\u7528\u4f8b<\/h3>\n\n\n\n<p>\u6642\u9593\u8a08\u7b97\u3084\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u51e6\u7406\u3067\u306f\u3001long long\u578b\u304c\u4e0d\u53ef\u6b20\u3067\u3059\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;iostream&gt;\n#include &lt;chrono&gt;\n#include &lt;ctime&gt;\n\nclass TimeProcessor {\nprivate:\n    using TimePoint = std::chrono::system_clock::time_point;\n\npublic:\n    \/\/ \u30a8\u30dd\u30c3\u30af\u304b\u3089\u306e\u7d4c\u904e\u6642\u9593\u3092\u30de\u30a4\u30af\u30ed\u79d2\u3067\u53d6\u5f97\n    static long long getCurrentMicroseconds() {\n        auto now = std::chrono::system_clock::now();\n        return std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(\n            now.time_since_epoch()).count();\n    }\n\n    \/\/ \u4e8c\u3064\u306e\u6642\u70b9\u9593\u306e\u7d4c\u904e\u6642\u9593\u3092\u8a08\u7b97\n    static long long calculateDurationMicros(TimePoint start, TimePoint end) {\n        return std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(\n            end - start).count();\n    }\n\n    \/\/ \u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u7bc4\u56f2\u30c1\u30a7\u30c3\u30af\n    static bool isTimeStampValid(long long timestamp_micros) {\n        const long long MIN_TIMESTAMP = 0LL;  \/\/ 1970\u5e741\u67081\u65e5\n        const long long MAX_TIMESTAMP = 253402300799999999LL;  \/\/ 9999\u5e7412\u670831\u65e5\n\n        return timestamp_micros &gt;= MIN_TIMESTAMP &amp;&amp; \n               timestamp_micros &lt;= MAX_TIMESTAMP;\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u4f8b\u306f\u3001long long\u578b\u304c\u5b9f\u969b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u3067\u3044\u304b\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3059\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u9ad8\u7cbe\u5ea6\u306a\u8a08\u7b97\u3084\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316\u3001\u305d\u3057\u3066\u5805\u7262\u306a\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-14\">long long\u578b\u4f7f\u7528\u6642\u306e\u6ce8\u610f\u70b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u30af\u30ed\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u958b\u767a\u3067\u306e\u4e92\u63db\u6027\u78ba\u4fdd<\/h3>\n\n\n\n<p>\u7570\u306a\u308b\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067long long\u578b\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u4ee5\u4e0b\u306e\u70b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\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;iostream&gt;\n#include &lt;cstdint&gt;\n\nclass CrossPlatformInteger {\nprivate:\n    \/\/ \u78ba\u5b9f\u306b64\u30d3\u30c3\u30c8\u306e\u6574\u6570\u578b\u3092\u4f7f\u7528\n    int64_t value;\n\npublic:\n    CrossPlatformInteger(int64_t initial = 0) : value(initial) {\n        \/\/ \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u4e92\u63db\u6027\u30c1\u30a7\u30c3\u30af\n        static_assert(sizeof(long long) &gt;= sizeof(int64_t),\n            \"long long\u578b\u304c64\u30d3\u30c3\u30c8\u672a\u6e80\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u3059\");\n    }\n\n    \/\/ \u5b89\u5168\u306a\u578b\u5909\u63db\u30e1\u30bd\u30c3\u30c9\n    template&lt;typename T&gt;\n    T safeCast() const {\n        if (value &gt; std::numeric_limits&lt;T&gt;::max() ||\n            value &lt; std::numeric_limits&lt;T&gt;::min()) {\n            throw std::overflow_error(\"\u5024\u304c\u5bfe\u8c61\u306e\u578b\u306e\u7bc4\u56f2\u5916\u3067\u3059\");\n        }\n        return static_cast&lt;T&gt;(value);\n    }\n\n    \/\/ \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u9593\u3067\u306e\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\n    std::string serialize() const {\n        \/\/ \u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u8003\u616e\u306e\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\n        union {\n            int64_t v;\n            unsigned char bytes[sizeof(int64_t)];\n        } data;\n        data.v = value;\n\n        std::string result;\n        for (size_t i = 0; i &lt; sizeof(int64_t); ++i) {\n            result.push_back(data.bytes[i]);\n        }\n        return result;\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nint main() {\n    try {\n        CrossPlatformInteger num(1234567890123456789LL);\n\n        \/\/ \u5b89\u5168\u306a\u578b\u5909\u63db\n        int32_t smaller = num.safeCast&lt;int32_t&gt;();  \/\/ \u4f8b\u5916\u304c\u767a\u751f\n    } catch (const std::overflow_error&amp; e) {\n        std::cerr &lt;&lt; \"\u30a8\u30e9\u30fc: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n    }\n    return 0;\n}<\/pre>\n\n\n\n<p>\u4e92\u63db\u6027\u78ba\u4fdd\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>&lt;cstdint&gt;<\/code>\u306e\u56fa\u5b9a\u5e45\u6574\u6570\u578b\u306e\u4f7f\u7528<\/li>\n\n\n\n<li>\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u8003\u616e\u306e\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u30b5\u30a4\u30ba\u30c1\u30a7\u30c3\u30af<\/li>\n\n\n\n<li>\u5b89\u5168\u306a\u578b\u5909\u63db\u306e\u5b9f\u88c5<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>long long\u578b\u306e\u30e1\u30e2\u30ea\u4f7f\u7528\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7d39\u4ecb\u3057\u307e\u3059\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;iostream&gt;\n#include &lt;vector&gt;\n#include &lt;memory&gt;\n\nclass OptimizedDataStructure {\nprivate:\n    \/\/ \u30e1\u30e2\u30ea\u6700\u9069\u5316\u306e\u305f\u3081\u306e\u30c7\u30fc\u30bf\u30d1\u30c3\u30ad\u30f3\u30b0\n    struct DataPacket {\n        int32_t small_value;     \/\/ 4\u30d0\u30a4\u30c8\n        int64_t large_value;     \/\/ 8\u30d0\u30a4\u30c8\n        \/\/ \u30d1\u30c7\u30a3\u30f3\u30b0\u3092\u907f\u3051\u308b\u305f\u3081\u306e\u9069\u5207\u306a\u9806\u5e8f\n    };\n\n    std::vector&lt;DataPacket&gt; data;\n\n    \/\/ \u30e1\u30e2\u30ea\u30d7\u30fc\u30eb\u306e\u5b9f\u88c5\n    class MemoryPool {\n        static constexpr size_t CHUNK_SIZE = 1024;\n        std::vector&lt;std::unique_ptr&lt;DataPacket[]&gt;&gt; chunks;\n        std::vector&lt;DataPacket*&gt; free_list;\n\n    public:\n        DataPacket* allocate() {\n            if (free_list.empty()) {\n                \/\/ \u65b0\u3057\u3044\u30c1\u30e3\u30f3\u30af\u306e\u5272\u308a\u5f53\u3066\n                auto new_chunk = std::make_unique&lt;DataPacket[]&gt;(CHUNK_SIZE);\n                for (size_t i = 0; i &lt; CHUNK_SIZE; ++i) {\n                    free_list.push_back(&amp;new_chunk[i]);\n                }\n                chunks.push_back(std::move(new_chunk));\n            }\n\n            DataPacket* result = free_list.back();\n            free_list.pop_back();\n            return result;\n        }\n\n        void deallocate(DataPacket* ptr) {\n            free_list.push_back(ptr);\n        }\n    };\n\n    MemoryPool pool;\n\npublic:\n    void addData(int32_t small, int64_t large) {\n        DataPacket packet{small, large};\n        data.push_back(packet);\n    }\n\n    \/\/ \u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u8868\u793a\n    void printMemoryUsage() const {\n        size_t total_bytes = data.size() * sizeof(DataPacket);\n        std::cout &lt;&lt; \"\u4f7f\u7528\u30e1\u30e2\u30ea: \" &lt;&lt; total_bytes &lt;&lt; \" bytes\\n\";\n        std::cout &lt;&lt; \"\u30c7\u30fc\u30bf\u6570: \" &lt;&lt; data.size() &lt;&lt; \"\\n\";\n        std::cout &lt;&lt; \"1\u8981\u7d20\u3042\u305f\u308a\u306e\u30b5\u30a4\u30ba: \" &lt;&lt; sizeof(DataPacket) &lt;&lt; \" bytes\\n\";\n    }\n};<\/pre>\n\n\n\n<p>\u30e1\u30e2\u30ea\u6700\u9069\u5316\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u30d1\u30c3\u30ad\u30f3\u30b0\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30d7\u30fc\u30eb\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u8003\u616e<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u578b\u5909\u63db\u6642\u306e\u30d4\u30c3\u30c8\u30d5\u30a9\u30fc\u30eb<\/h3>\n\n\n\n<p>long long\u578b\u3068\u306e\u578b\u5909\u63db\u6642\u306b\u6ce8\u610f\u3059\u3079\u304d\u554f\u984c\u70b9\u3068\u5bfe\u7b56\u3092\u793a\u3057\u307e\u3059\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;iostream&gt;\n#include &lt;limits&gt;\n#include &lt;type_traits&gt;\n\nclass SafeTypeConverter {\npublic:\n    \/\/ \u5b89\u5168\u306a\u6570\u5024\u5909\u63db\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\n    template&lt;typename To, typename From&gt;\n    static To safeCast(From value) {\n        static_assert(std::is_arithmetic&lt;From&gt;::value &amp;&amp; std::is_arithmetic&lt;To&gt;::value,\n            \"\u7b97\u8853\u578b\u540c\u58eb\u306e\u5909\u63db\u306e\u307f\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\");\n\n        if (sizeof(From) &gt; sizeof(To) ||\n            std::is_signed&lt;From&gt;::value != std::is_signed&lt;To&gt;::value) {\n            if (value &gt; static_cast&lt;From&gt;(std::numeric_limits&lt;To&gt;::max()) ||\n                value &lt; static_cast&lt;From&gt;(std::numeric_limits&lt;To&gt;::min())) {\n                throw std::overflow_error(\"\u578b\u5909\u63db\u6642\u306b\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\");\n            }\n        }\n        return static_cast&lt;To&gt;(value);\n    }\n\n    \/\/ \u6587\u5b57\u5217\u3078\u306e\u5b89\u5168\u306a\u5909\u63db\n    static std::string toString(long long value) {\n        return std::to_string(value);\n    }\n\n    \/\/ \u6587\u5b57\u5217\u304b\u3089\u306e\u5b89\u5168\u306a\u5909\u63db\n    static long long fromString(const std::string&amp; str) {\n        try {\n            size_t pos;\n            long long result = std::stoll(str, &amp;pos);\n            if (pos != str.length()) {\n                throw std::invalid_argument(\"\u7121\u52b9\u306a\u6587\u5b57\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\");\n            }\n            return result;\n        } catch (const std::exception&amp; e) {\n            throw std::runtime_error(std::string(\"\u5909\u63db\u30a8\u30e9\u30fc: \") + e.what());\n        }\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid demonstrateTypeConversion() {\n    try {\n        \/\/ \u6574\u6570\u578b\u9593\u306e\u5909\u63db\n        int small_int = SafeTypeConverter::safeCast&lt;int&gt;(123456789012345LL);\n    } catch (const std::overflow_error&amp; e) {\n        std::cerr &lt;&lt; \"\u5909\u63db\u30a8\u30e9\u30fc: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n    }\n\n    try {\n        \/\/ \u6587\u5b57\u5217\u3068\u306e\u5909\u63db\n        long long value = SafeTypeConverter::fromString(\"123456789012345\");\n        std::string str = SafeTypeConverter::toString(value);\n    } catch (const std::runtime_error&amp; e) {\n        std::cerr &lt;&lt; \"\u6587\u5b57\u5217\u5909\u63db\u30a8\u30e9\u30fc: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<p>\u578b\u5909\u63db\u6642\u306e\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6697\u9ed9\u7684\u306a\u578b\u5909\u63db\u306e\u56de\u907f<\/li>\n\n\n\n<li>\u7bc4\u56f2\u30c1\u30a7\u30c3\u30af\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u7b26\u53f7\u4ed8\u304d\/\u7b26\u53f7\u306a\u3057\u5909\u63db\u306e\u8003\u616e<\/li>\n\n\n\n<li>\u6587\u5b57\u5217\u5909\u63db\u6642\u306e\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6ce8\u610f\u70b9\u3092\u9069\u5207\u306b\u8003\u616e\u3059\u308b\u3053\u3068\u3067\u3001long long\u578b\u3092\u5b89\u5168\u304b\u3064\u52b9\u7387\u7684\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-18\">long long\u578b\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u3092\u610f\u8b58\u3057\u305f\u6700\u9069\u5316\u624b\u6cd5<\/h3>\n\n\n\n<p>\u30ad\u30e3\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u3092\u52b9\u7387\u7684\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001long long\u578b\u306e\u51e6\u7406\u6027\u80fd\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\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;iostream&gt;\n#include &lt;vector&gt;\n#include &lt;chrono&gt;\n#include &lt;algorithm&gt;\n\nclass CacheOptimizer {\nprivate:\n    static constexpr size_t CACHE_LINE_SIZE = 64;  \/\/ \u4e00\u822c\u7684\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u30b5\u30a4\u30ba\n\n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u5883\u754c\u306b\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3055\u308c\u305f\u69cb\u9020\u4f53\n    struct alignas(CACHE_LINE_SIZE) AlignedData {\n        long long value;\n        char padding[CACHE_LINE_SIZE - sizeof(long long)];\n    };\n\npublic:\n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u6700\u9069\u5316\u3055\u308c\u305f\u914d\u5217\u30a2\u30af\u30bb\u30b9\n    static void demonstrateCacheOptimization() {\n        const size_t array_size = 10000000;\n        std::vector&lt;long long&gt; normal_array(array_size);\n        std::vector&lt;AlignedData&gt; aligned_array(array_size);\n\n        \/\/ \u30c7\u30fc\u30bf\u521d\u671f\u5316\n        for (size_t i = 0; i &lt; array_size; ++i) {\n            normal_array[i] = i;\n            aligned_array[i].value = i;\n        }\n\n        \/\/ \u901a\u5e38\u306e\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\n        auto start = std::chrono::high_resolution_clock::now();\n        long long sum1 = 0;\n        for (size_t i = 0; i &lt; array_size; i += 8) {  \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u5e45\u3067\u30a2\u30af\u30bb\u30b9\n            sum1 += normal_array[i];\n        }\n        auto end = std::chrono::high_resolution_clock::now();\n        auto normal_time = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(end - start).count();\n\n        \/\/ \u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3055\u308c\u305f\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\n        start = std::chrono::high_resolution_clock::now();\n        long long sum2 = 0;\n        for (size_t i = 0; i &lt; array_size; i += 8) {\n            sum2 += aligned_array[i].value;\n        }\n        end = std::chrono::high_resolution_clock::now();\n        auto aligned_time = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(end - start).count();\n\n        std::cout &lt;&lt; \"\u901a\u5e38\u30a2\u30af\u30bb\u30b9\u6642\u9593: \" &lt;&lt; normal_time &lt;&lt; \"\u00b5s\\n\";\n        std::cout &lt;&lt; \"\u6700\u9069\u5316\u30a2\u30af\u30bb\u30b9\u6642\u9593: \" &lt;&lt; aligned_time &lt;&lt; \"\u00b5s\\n\";\n    }\n};<\/pre>\n\n\n\n<p>\u30ad\u30e3\u30c3\u30b7\u30e5\u6700\u9069\u5316\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u5883\u754c\u3078\u306e\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/li>\n\n\n\n<li>\u9023\u7d9a\u3057\u305f\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u30d1\u30c7\u30a3\u30f3\u30b0<\/li>\n\n\n\n<li>\u30d7\u30ea\u30d5\u30a7\u30c3\u30c1\u306e\u6d3b\u7528<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-20\">SIMD\u547d\u4ee4\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u65b9<\/h3>\n\n\n\n<p>SIMD\uff08Single Instruction Multiple Data\uff09\u547d\u4ee4\u3092\u4f7f\u7528\u3057\u3066\u3001long long\u578b\u306e\u6f14\u7b97\u3092\u4e26\u5217\u5316\u3067\u304d\u307e\u3059\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;iostream&gt;\n#include &lt;immintrin.h&gt;  \/\/ AVX2\u547d\u4ee4\u7528\n#include &lt;vector&gt;\n\nclass SIMDOptimizer {\npublic:\n    \/\/ AVX2\u3092\u4f7f\u7528\u3057\u305f\u9ad8\u901f\u306a\u914d\u5217\u52a0\u7b97\n    static void performSIMDAddition(const std::vector&lt;long long&gt;&amp; a, \n                                  const std::vector&lt;long long&gt;&amp; b,\n                                  std::vector&lt;long long&gt;&amp; result) {\n        const size_t size = a.size();\n        const size_t simd_size = size - (size % 4);  \/\/ 4\u8981\u7d20\u305a\u3064\u51e6\u7406\n\n        \/\/ AVX2\u306b\u3088\u308b\u4e26\u5217\u51e6\u7406\n        for (size_t i = 0; i &lt; simd_size; i += 4) {\n            __m256i va = _mm256_loadu_si256((__m256i*)&amp;a[i]);\n            __m256i vb = _mm256_loadu_si256((__m256i*)&amp;b[i]);\n            __m256i vr = _mm256_add_epi64(va, vb);\n            _mm256_storeu_si256((__m256i*)&amp;result[i], vr);\n        }\n\n        \/\/ \u6b8b\u308a\u306e\u8981\u7d20\u3092\u901a\u5e38\u51e6\u7406\n        for (size_t i = simd_size; i &lt; size; ++i) {\n            result[i] = a[i] + b[i];\n        }\n    }\n\n    \/\/ SIMD\u6700\u9069\u5316\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\n    static void benchmarkSIMD() {\n        const size_t array_size = 10000000;\n        std::vector&lt;long long&gt; a(array_size), b(array_size), result1(array_size), result2(array_size);\n\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u6e96\u5099\n        for (size_t i = 0; i &lt; array_size; ++i) {\n            a[i] = i;\n            b[i] = i * 2;\n        }\n\n        \/\/ \u901a\u5e38\u306e\u52a0\u7b97\n        auto start = std::chrono::high_resolution_clock::now();\n        for (size_t i = 0; i &lt; array_size; ++i) {\n            result1[i] = a[i] + b[i];\n        }\n        auto normal_time = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(\n            std::chrono::high_resolution_clock::now() - start).count();\n\n        \/\/ SIMD\u52a0\u7b97\n        start = std::chrono::high_resolution_clock::now();\n        performSIMDAddition(a, b, result2);\n        auto simd_time = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(\n            std::chrono::high_resolution_clock::now() - start).count();\n\n        std::cout &lt;&lt; \"\u901a\u5e38\u51e6\u7406\u6642\u9593: \" &lt;&lt; normal_time &lt;&lt; \"\u00b5s\\n\";\n        std::cout &lt;&lt; \"SIMD\u51e6\u7406\u6642\u9593: \" &lt;&lt; simd_time &lt;&lt; \"\u00b5s\\n\";\n    }\n};<\/pre>\n\n\n\n<p>SIMD\u6700\u9069\u5316\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u306e\u8003\u616e<\/li>\n\n\n\n<li>\u30d9\u30af\u30c8\u30eb\u5316\u53ef\u80fd\u306a\u51e6\u7406\u306e\u7279\u5b9a<\/li>\n\n\n\n<li>\u9069\u5207\u306aSIMD\u547d\u4ee4\u306e\u9078\u629e<\/li>\n\n\n\n<li>\u6b8b\u4f59\u51e6\u7406\u306e\u9069\u5207\u306a\u5b9f\u88c5<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u6700\u9069\u5316\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u6d3b\u7528<\/h3>\n\n\n\n<p>\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u6700\u9069\u5316\u6a5f\u80fd\u3092\u6d3b\u7528\u3057\u3066\u3001long long\u578b\u306e\u51e6\u7406\u3092\u52b9\u7387\u5316\u3067\u304d\u307e\u3059\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;iostream&gt;\n#include &lt;vector&gt;\n\n\/\/ \u30b3\u30f3\u30d1\u30a4\u30e9\u6700\u9069\u5316\u306e\u30d2\u30f3\u30c8\u3092\u63d0\u4f9b\nclass CompilerOptimizer {\nprivate:\n    \/\/ \u6700\u9069\u5316\u30d2\u30f3\u30c8\u4ed8\u304d\u306e\u95a2\u6570\n    [[nodiscard]] static inline long long \n    optimizedMultiply(long long a, long long b) __attribute__((always_inline)) {\n        return a * b;\n    }\n\npublic:\n    \/\/ \u30eb\u30fc\u30d7\u30a2\u30f3\u30ed\u30fc\u30ea\u30f3\u30b0\u306e\u4f8b\n    static void demonstrateLoopUnrolling(std::vector&lt;long long&gt;&amp; data) {\n        const size_t size = data.size();\n        const size_t unroll_factor = 4;\n        const size_t main_loop_end = size - (size % unroll_factor);\n\n        #pragma GCC unroll 4\n        for (size_t i = 0; i &lt; main_loop_end; i += unroll_factor) {\n            data[i] = optimizedMultiply(data[i], 2);\n            data[i + 1] = optimizedMultiply(data[i + 1], 2);\n            data[i + 2] = optimizedMultiply(data[i + 2], 2);\n            data[i + 3] = optimizedMultiply(data[i + 3], 2);\n        }\n\n        \/\/ \u6b8b\u308a\u306e\u8981\u7d20\u3092\u51e6\u7406\n        for (size_t i = main_loop_end; i &lt; size; ++i) {\n            data[i] = optimizedMultiply(data[i], 2);\n        }\n    }\n\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30e9\u6700\u9069\u5316\u306e\u52b9\u679c\u3092\u691c\u8a3c\n    static void benchmarkOptimizations() {\n        const size_t array_size = 10000000;\n        std::vector&lt;long long&gt; data1(array_size), data2(array_size);\n\n        \/\/ \u30c7\u30fc\u30bf\u521d\u671f\u5316\n        for (size_t i = 0; i &lt; array_size; ++i) {\n            data1[i] = data2[i] = i;\n        }\n\n        \/\/ \u901a\u5e38\u306e\u51e6\u7406\n        auto start = std::chrono::high_resolution_clock::now();\n        for (auto&amp; value : data1) {\n            value *= 2;\n        }\n        auto normal_time = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(\n            std::chrono::high_resolution_clock::now() - start).count();\n\n        \/\/ \u6700\u9069\u5316\u3055\u308c\u305f\u51e6\u7406\n        start = std::chrono::high_resolution_clock::now();\n        demonstrateLoopUnrolling(data2);\n        auto optimized_time = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(\n            std::chrono::high_resolution_clock::now() - start).count();\n\n        std::cout &lt;&lt; \"\u901a\u5e38\u51e6\u7406\u6642\u9593: \" &lt;&lt; normal_time &lt;&lt; \"\u00b5s\\n\";\n        std::cout &lt;&lt; \"\u6700\u9069\u5316\u51e6\u7406\u6642\u9593: \" &lt;&lt; optimized_time &lt;&lt; \"\u00b5s\\n\";\n    }\n};<\/pre>\n\n\n\n<p>\u30b3\u30f3\u30d1\u30a4\u30e9\u6700\u9069\u5316\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u9069\u5207\u306a\u6700\u9069\u5316\u30d5\u30e9\u30b0\u306e\u4f7f\u7528\uff08-O2, -O3\u306a\u3069\uff09<\/li>\n\n\n\n<li>\u30a4\u30f3\u30e9\u30a4\u30f3\u5c55\u958b\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u30eb\u30fc\u30d7\u30a2\u30f3\u30ed\u30fc\u30ea\u30f3\u30b0\u306e\u6307\u793a<\/li>\n\n\n\n<li>\u30d9\u30af\u30c8\u30eb\u5316\u306e\u30d2\u30f3\u30c8\u63d0\u4f9b<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001long long\u578b\u3092\u4f7f\u7528\u3059\u308b\u30b3\u30fc\u30c9\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u6700\u9069\u5316\u306e\u52b9\u679c\u306f\u4f7f\u7528\u74b0\u5883\u3084\u30b3\u30f3\u30d1\u30a4\u30e9\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3001\u5b9f\u969b\u306e\u30bf\u30fc\u30b2\u30c3\u30c8\u74b0\u5883\u3067\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u304c\u91cd\u8981\u3067\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-1867","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\/1867","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=1867"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1867\/revisions"}],"predecessor-version":[{"id":1868,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1867\/revisions\/1868"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1867"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1867"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}