{"id":1608,"date":"2025-03-24T08:50:16","date_gmt":"2025-03-23T23:50:16","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1608"},"modified":"2025-03-24T08:50:16","modified_gmt":"2025-03-23T23:50:16","slug":"c-%e3%83%99%e3%82%af%e3%82%bf%e3%83%bc%e3%82%92%e5%ae%8c%e5%85%a8%e3%83%9e%e3%82%b9%e3%82%bf%e3%83%bc%ef%bc%81%e5%ae%9f%e5%8b%99%e3%81%a7%e4%bd%bf%e3%81%88%e3%82%8b%e5%85%a818%e3%81%ae%e5%bf%85","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1608","title":{"rendered":"C++ \u30d9\u30af\u30bf\u30fc\u3092\u5b8c\u5168\u30de\u30b9\u30bf\u30fc\uff01\u5b9f\u52d9\u3067\u4f7f\u3048\u308b\u516818\u306e\u5fc5\u9808\u30c6\u30af\u30cb\u30c3\u30af"},"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\">vector\u306e\u57fa\u790e\u77e5\u8b58\u3068\u30e1\u30ea\u30c3\u30c8<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u52d5\u7684\u914d\u5217\u3068\u3057\u3066\u306evector\u306e\u7279\u5fb4<\/a>      <\/li>      <li>        <a href=\"#i-2\">vector\u304c\u9078\u3070\u308c\u308b3\u3064\u306e\u7406\u7531<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">\u914d\u5217\u3084\u30ea\u30b9\u30c8\u3068\u6bd4\u8f03\u3057\u305fvector\u306e\u512a\u4f4d\u6027<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-4\">vector\u306e\u57fa\u672c\u64cd\u4f5c\u30de\u30b9\u30bf\u30fc\u30ac\u30a4\u30c9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">\u8981\u7d20\u306e\u8ffd\u52a0\u3068\u524a\u9664\u3092\u5b8c\u5168\u306b\u7406\u89e3\u3059\u308b<\/a>      <\/li>      <li>        <a href=\"#i-8\">\u30a4\u30c6\u30ec\u30fc\u30bf\u30fc\u3092\u4f7f\u3063\u305f\u52b9\u7387\u7684\u306a\u64cd\u4f5c\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-10\">\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-15\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u5927\u5316\u3059\u308b\u6226\u7565\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-16\">reserve() \u3092\u4f7f\u3063\u305f\u30e1\u30e2\u30ea\u6700\u9069\u5316<\/a>      <\/li>      <li>        <a href=\"#i-19\">emplace_back() \u3067\u52b9\u7387\u7684\u306b\u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-21\">\u4e0d\u8981\u306a\u30b3\u30d4\u30fc\u3092\u6e1b\u3089\u3059\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-26\">\u5b9f\u52d9\u3067\u306e\u6d3b\u7528\u4e8b\u4f8b\u3068\u5fdc\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-27\">\u5927\u91cf\u30c7\u30fc\u30bf\u51e6\u7406\u3067\u306e\u52b9\u7387\u7684\u306a\u4f7f\u3044\u65b9\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-30\">\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u3067\u306e\u5b89\u5168\u306a\u64cd\u4f5c<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-33\">\u30ab\u30b9\u30bf\u30e0\u30a2\u30ed\u30b1\u30fc\u30bf\u306e\u5b9f\u88c5\u3068\u6d3b\u7528<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-37\">\u3088\u304f\u3042\u308b\u30d0\u30b0\u3068\u5bfe\u51e6\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-38\">\u7bc4\u56f2\u5916\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>      <li>        <a href=\"#i-41\">\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050\u305f\u3081\u306e\u6ce8\u610f\u70b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-44\">\u30a4\u30c6\u30ec\u30fc\u30bf\u7121\u52b9\u5316\u306e\u7f60\u3068\u5bfe\u7b56<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-49\">\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\uff1a\u7167\u5408\u6700\u9069\u5316\u3068\u5fdc\u7528<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-50\">STL\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u6d3b\u7528\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-53\">\u30ab\u30b9\u30bf\u30e0\u30af\u30e9\u30b9\u3067vector\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-56\">\u3088\u308a\u9ad8\u5ea6\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u3078\u306e\u767a\u5c55<\/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\">vector\u306e\u57fa\u790e\u77e5\u8b58\u3068\u30e1\u30ea\u30c3\u30c8<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u52d5\u7684\u914d\u5217\u3068\u3057\u3066\u306evector\u306e\u7279\u5fb4<\/h3>\n\n\n\n<p>C++\u306evector\u306f\u3001\u6700\u3082\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u6a19\u6e96\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\uff08STL\uff09\u306e\u30b3\u30f3\u30c6\u30ca\u306e1\u3064\u3067\u3059\u3002\u305d\u306e\u672c\u8cea\u306f\u52d5\u7684\u914d\u5217\u306b\u3042\u308a\u3001\u4ee5\u4e0b\u306e\u7279\u5fb4\u3092\u6301\u3063\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u81ea\u52d5\u7684\u306a\u30e1\u30e2\u30ea\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8981\u7d20\u6570\u306b\u5fdc\u3058\u3066\u81ea\u52d5\u7684\u306b\u30e1\u30e2\u30ea\u30b5\u30a4\u30ba\u3092\u8abf\u6574<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u306e\u78ba\u4fdd\u30fb\u89e3\u653e\u3092\u81ea\u52d5\u7684\u306b\u884c\u3046<\/li>\n\n\n\n<li>\u914d\u5217\u306e\u30ea\u30b5\u30a4\u30ba\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u5185\u90e8\u3067\u81ea\u52d5\u7684\u306b\u51e6\u7406<\/li>\n<\/ul>\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=\"\">\/\/ vector\u306e\u57fa\u672c\u7684\u306a\u4f7f\u7528\u4f8b\n#include &lt;vector&gt;\n\nstd::vector&lt;int&gt; numbers;        \/\/ \u7a7a\u306evector\u3092\u4f5c\u6210\nnumbers.push_back(1);           \/\/ \u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b\u3068\u81ea\u52d5\u7684\u306b\u30e1\u30e2\u30ea\u3092\u78ba\u4fdd\nnumbers.push_back(2);\n\/\/ \u30e1\u30e2\u30ea\u306f\u81ea\u52d5\u7684\u306b\u7ba1\u7406\u3055\u308c\u3001\u30b9\u30b3\u30fc\u30d7\u3092\u629c\u3051\u308b\u3068\u89e3\u653e\u3055\u308c\u308b<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u9023\u7d9a\u3057\u305f\u30e1\u30e2\u30ea\u9818\u57df<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8981\u7d20\u304c\u7269\u7406\u7684\u306b\u9023\u7d9a\u3057\u3066\u914d\u7f6e\u3055\u308c\u308b<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387\u304c\u9ad8\u3044<\/li>\n\n\n\n<li>\u30dd\u30a4\u30f3\u30bf\u6f14\u7b97\u304c\u53ef\u80fd<\/li>\n<\/ul>\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=\"\">std::vector&lt;int&gt; arr = {1, 2, 3, 4, 5};\nint* ptr = arr.data();          \/\/ \u9023\u7d9a\u3057\u305f\u30e1\u30e2\u30ea\u3078\u306e\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u304c\u53ef\u80fd\nstd::cout &lt;&lt; *(ptr + 2);        \/\/ 3\u756a\u76ee\u306e\u8981\u7d20\u306b\u30a2\u30af\u30bb\u30b9<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30d9\u30fc\u30b9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3042\u3089\u3086\u308b\u578b\u306e\u30c7\u30fc\u30bf\u3092\u683c\u7d0d\u53ef\u80fd<\/li>\n\n\n\n<li>\u30ab\u30b9\u30bf\u30e0\u30af\u30e9\u30b9\u3082\u5229\u7528\u53ef\u80fd<\/li>\n\n\n\n<li>\u578b\u5b89\u5168\u6027\u304c\u4fdd\u8a3c\u3055\u308c\u308b<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">vector\u304c\u9078\u3070\u308c\u308b3\u3064\u306e\u7406\u7531<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4f7f\u3044\u3084\u3059\u3055\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30d0\u30e9\u30f3\u30b9<\/strong><\/li>\n<\/ol>\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=\"\">\/\/ \u7c21\u5358\u306a\u521d\u671f\u5316\u3068\u64cd\u4f5c\nstd::vector&lt;std::string&gt; names = {\"Alice\", \"Bob\", \"Charlie\"};\nnames.push_back(\"David\");        \/\/ \u672b\u5c3e\u306b\u8ffd\u52a0\nnames.pop_back();               \/\/ \u672b\u5c3e\u304b\u3089\u524a\u9664<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u8c4a\u5bcc\u306a\u6a5f\u80fd\u30bb\u30c3\u30c8<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30a4\u30c6\u30ec\u30fc\u30bf\u306b\u3088\u308b\u8981\u7d20\u3078\u306e\u30a2\u30af\u30bb\u30b9<\/li>\n\n\n\n<li>\u5bb9\u91cf\u306e\u5236\u5fa1\u6a5f\u80fd<\/li>\n\n\n\n<li>\u8981\u7d20\u306e\u691c\u7d22\u30fb\u30bd\u30fc\u30c8\u6a5f\u80fd<\/li>\n<\/ul>\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=\"\">std::vector&lt;int&gt; nums = {3, 1, 4, 1, 5};\nstd::sort(nums.begin(), nums.end());  \/\/ \u8981\u7d20\u306e\u30bd\u30fc\u30c8\nauto it = std::find(nums.begin(), nums.end(), 4);  \/\/ \u8981\u7d20\u306e\u691c\u7d22<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>STL\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u306e\u89aa\u548c\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6a19\u6e96\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u9023\u643a<\/li>\n\n\n\n<li>\u9ad8\u5ea6\u306a\u64cd\u4f5c\u304c\u7c21\u5358\u306b\u5b9f\u88c5\u53ef\u80fd<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316\u304c\u5bb9\u6613<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">\u914d\u5217\u3084\u30ea\u30b9\u30c8\u3068\u6bd4\u8f03\u3057\u305fvector\u306e\u512a\u4f4d\u6027<\/h3>\n\n\n<div id=\"id-a8ec3f32-ce1b-4a4a-8288-a3b00a4a877f\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u5fb4<\/th><th>vector<\/th><th>\u914d\u5217<\/th><th>list<\/th><\/tr><\/thead><tbody><tr><td>\u30e1\u30e2\u30ea\u7ba1\u7406<\/td><td>\u81ea\u52d5<\/td><td>\u624b\u52d5<\/td><td>\u81ea\u52d5<\/td><\/tr><tr><td>\u30b5\u30a4\u30ba\u5909\u66f4<\/td><td>\u53ef\u80fd<\/td><td>\u4e0d\u53ef\u80fd<\/td><td>\u53ef\u80fd<\/td><\/tr><tr><td>\u30e1\u30e2\u30ea\u52b9\u7387<\/td><td>\u9ad8<\/td><td>\u6700\u9ad8<\/td><td>\u4f4e<\/td><\/tr><tr><td>\u8981\u7d20\u30a2\u30af\u30bb\u30b9<\/td><td>O(1)<\/td><td>O(1)<\/td><td>O(n)<\/td><\/tr><tr><td>\u633f\u5165\/\u524a\u9664\uff08\u672b\u5c3e\uff09<\/td><td>O(1)*<\/td><td>N\/A<\/td><td>O(1)<\/td><\/tr><tr><td>\u633f\u5165\/\u524a\u9664\uff08\u4e2d\u9593\uff09<\/td><td>O(n)<\/td><td>N\/A<\/td><td>O(1)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>*: \u518d\u5272\u308a\u5f53\u3066\u304c\u5fc5\u8981\u306a\u5834\u5408\u3092\u9664\u304f<\/p>\n\n\n\n<p><strong>vector\u306e\u5b9f\u8df5\u7684\u306a\u512a\u4f4d\u6027\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u9762\u3067\u306e\u5229\u70b9<\/strong><\/li>\n<\/ol>\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=\"\">\/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u306a\u64cd\u4f5c\nstd::vector&lt;int&gt; vec(10000);\n\/\/ \u9023\u7d9a\u3057\u305f\u30e1\u30e2\u30ea\u9818\u57df\u306b\u3088\u308b\u9ad8\u901f\u306a\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\nfor(const auto&amp; element : vec) {\n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30d2\u30c3\u30c8\u7387\u304c\u9ad8\u3044\u64cd\u4f5c\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u7c21\u4fbf\u3055<\/strong><\/li>\n<\/ol>\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=\"\">void process_data() {\n    std::vector&lt;double&gt; data;\n    \/\/ \u30b9\u30b3\u30fc\u30d7\u3092\u629c\u3051\u308b\u3068\u81ea\u52d5\u7684\u306b\u30e1\u30e2\u30ea\u89e3\u653e\n    \/\/ \u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u306e\u5fc3\u914d\u304c\u4e0d\u8981\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u67d4\u8edf\u6027\u3068\u5b89\u5168\u6027<\/strong><\/li>\n<\/ol>\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=\"\">std::vector&lt;int&gt; safe_vec;\nsafe_vec.reserve(1000);  \/\/ \u30e1\u30e2\u30ea\u306e\u4e8b\u524d\u78ba\u4fdd\n\/\/ \u7bc4\u56f2\u30c1\u30a7\u30c3\u30af\u4ed8\u304d\u306e\u30a2\u30af\u30bb\u30b9\ntry {\n    int val = safe_vec.at(5);  \/\/ \u7bc4\u56f2\u5916\u30a2\u30af\u30bb\u30b9\u306f\u4f8b\u5916\u3092\u30b9\u30ed\u30fc\n} catch (const std::out_of_range&amp; e) {\n    \/\/ \u5b89\u5168\u306b\u4f8b\u5916\u3092\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001vector\u306f\u73fe\u4ee3\u306eC++\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001\u5b89\u5168\u6027\u3001\u4f7f\u3044\u3084\u3059\u3055\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u305f\u30b3\u30f3\u30c6\u30ca\u3068\u3057\u3066\u3001\u5e45\u5e83\u3044\u7528\u9014\u3067\u6d3b\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">vector\u306e\u57fa\u672c\u64cd\u4f5c\u30de\u30b9\u30bf\u30fc\u30ac\u30a4\u30c9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u8981\u7d20\u306e\u8ffd\u52a0\u3068\u524a\u9664\u3092\u5b8c\u5168\u306b\u7406\u89e3\u3059\u308b<\/h3>\n\n\n\n<p>vector\u306e\u8981\u7d20\u64cd\u4f5c\u306f\u3001\u52b9\u7387\u7684\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u57fa\u790e\u3068\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u4e3b\u8981\u306a\u64cd\u4f5c\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-6\">1. \u8981\u7d20\u306e\u8ffd\u52a0<\/h4>\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;vector&gt;\n#include &lt;string&gt;\n\nstd::vector&lt;std::string&gt; fruits;\n\n\/\/ \u672b\u5c3e\u3078\u306e\u8981\u7d20\u8ffd\u52a0\nfruits.push_back(\"apple\");           \/\/ \u6700\u3082\u4e00\u822c\u7684\u306a\u8ffd\u52a0\u65b9\u6cd5\nfruits.emplace_back(\"banana\");       \/\/ \u76f4\u63a5\u69cb\u7bc9\u306b\u3088\u308b\u52b9\u7387\u7684\u306a\u8ffd\u52a0\n\n\/\/ \u6307\u5b9a\u4f4d\u7f6e\u3078\u306e\u8981\u7d20\u8ffd\u52a0\nauto it = fruits.begin();\nfruits.insert(it, \"orange\");         \/\/ \u5148\u982d\u306b\u8ffd\u52a0\nfruits.emplace(it + 1, \"grape\");     \/\/ 2\u756a\u76ee\u306e\u4f4d\u7f6e\u306b\u8ffd\u52a0\n\n\/\/ \u8907\u6570\u8981\u7d20\u306e\u8ffd\u52a0\nstd::vector&lt;std::string&gt; more_fruits = {\"mango\", \"kiwi\"};\nfruits.insert(fruits.end(), more_fruits.begin(), more_fruits.end());<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-7\">2. \u8981\u7d20\u306e\u524a\u9664<\/h4>\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=\"\">\/\/ \u672b\u5c3e\u8981\u7d20\u306e\u524a\u9664\nfruits.pop_back();\n\n\/\/ \u6307\u5b9a\u4f4d\u7f6e\u306e\u8981\u7d20\u3092\u524a\u9664\nauto it = fruits.begin() + 2;\nfruits.erase(it);                    \/\/ 3\u756a\u76ee\u306e\u8981\u7d20\u3092\u524a\u9664\n\n\/\/ \u7bc4\u56f2\u524a\u9664\nfruits.erase(fruits.begin(), fruits.begin() + 2);  \/\/ \u6700\u521d\u306e2\u8981\u7d20\u3092\u524a\u9664\n\n\/\/ \u6761\u4ef6\u306b\u57fa\u3065\u304f\u524a\u9664\uff08remove-erase \u30a4\u30c7\u30a3\u30aa\u30e0\uff09\nauto remove_it = std::remove_if(fruits.begin(), fruits.end(),\n    [](const std::string&amp; s) { return s.length() &lt; 5; });\nfruits.erase(remove_it, fruits.end());<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u30a4\u30c6\u30ec\u30fc\u30bf\u30fc\u3092\u4f7f\u3063\u305f\u52b9\u7387\u7684\u306a\u64cd\u4f5c\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30a4\u30c6\u30ec\u30fc\u30bf\u306f\u3001vector\u306e\u8981\u7d20\u306b\u5bfe\u3059\u308b\u5f37\u529b\u306a\u30a2\u30af\u30bb\u30b9\u624b\u6bb5\u3092\u63d0\u4f9b\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=\"\">std::vector&lt;int&gt; numbers = {1, 2, 3, 4, 5};\n\n\/\/ \u57fa\u672c\u7684\u306a\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u4f7f\u7528\nfor (auto it = numbers.begin(); it != numbers.end(); ++it) {\n    std::cout &lt;&lt; *it &lt;&lt; \" \";\n}\n\n\/\/ \u9006\u9806\u30a4\u30c6\u30ec\u30fc\u30bf\nfor (auto rit = numbers.rbegin(); rit != numbers.rend(); ++rit) {\n    std::cout &lt;&lt; *rit &lt;&lt; \" \";\n}\n\n\/\/ \u7bc4\u56f2\u30d9\u30fc\u30b9\u306efor\u6587\uff08\u5185\u90e8\u7684\u306b\u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u4f7f\u7528\uff09\nfor (const auto&amp; num : numbers) {\n    std::cout &lt;&lt; num &lt;&lt; \" \";\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-9\">\u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u6d3b\u7528\u3057\u305f\u9ad8\u5ea6\u306a\u64cd\u4f5c<\/h4>\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=\"\">std::vector&lt;int&gt; vec = {3, 1, 4, 1, 5, 9, 2, 6, 5, 3};\n\n\/\/ \u30bd\u30fc\u30c8\u3068\u4e8c\u5206\u63a2\u7d22\nstd::sort(vec.begin(), vec.end());\nauto it = std::lower_bound(vec.begin(), vec.end(), 4);  \/\/ 4\u4ee5\u4e0a\u306e\u6700\u521d\u306e\u8981\u7d20\n\n\/\/ \u8981\u7d20\u306e\u5909\u63db\nstd::transform(vec.begin(), vec.end(), vec.begin(),\n    [](int n) { return n * 2; });\n\n\/\/ \u90e8\u5206\u7684\u306a\u64cd\u4f5c\nauto mid = vec.begin() + vec.size() \/ 2;\nstd::rotate(vec.begin(), mid, vec.end());  \/\/ \u30d9\u30af\u30c8\u30eb\u3092\u4e2d\u70b9\u3067\u56de\u8ee2<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>\u52b9\u7387\u7684\u306a\u30e1\u30e2\u30ea\u7ba1\u7406\u306f\u3001vector\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u4e0a\u3067\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-11\">1. \u5bb9\u91cf\u306e\u4e8b\u524d\u78ba\u4fdd<\/h4>\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=\"\">std::vector&lt;int&gt; efficient_vector;\nefficient_vector.reserve(1000);    \/\/ 1000\u8981\u7d20\u5206\u306e\u30e1\u30e2\u30ea\u3092\u4e8b\u524d\u78ba\u4fdd\n\n\/\/ \u518d\u5272\u308a\u5f53\u3066\u304c\u767a\u751f\u3057\u306a\u3044\u305f\u3081\u52b9\u7387\u7684\nfor (int i = 0; i &lt; 1000; ++i) {\n    efficient_vector.push_back(i);\n}\n\n\/\/ \u5bb9\u91cf\u3068\u5927\u304d\u3055\u306e\u78ba\u8a8d\nstd::cout &lt;&lt; \"Size: \" &lt;&lt; efficient_vector.size() &lt;&lt; \"\\n\";\nstd::cout &lt;&lt; \"Capacity: \" &lt;&lt; efficient_vector.capacity() &lt;&lt; \"\\n\";<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-12\">2. \u30e1\u30e2\u30ea\u306e\u6700\u9069\u5316<\/h4>\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=\"\">std::vector&lt;int&gt; vec = {1, 2, 3, 4, 5};\nvec.shrink_to_fit();              \/\/ \u672a\u4f7f\u7528\u306e\u30e1\u30e2\u30ea\u3092\u89e3\u653e\n\n\/\/ \u4e0d\u8981\u306b\u306a\u3063\u305f\u30d9\u30af\u30c8\u30eb\u306e\u30e1\u30e2\u30ea\u89e3\u653e\n{\n    std::vector&lt;int&gt;().swap(vec); \/\/ \u30e1\u30e2\u30ea\u3092\u5b8c\u5168\u306b\u89e3\u653e\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-13\">3. \u30e1\u30e2\u30ea\u52b9\u7387\u3092\u8003\u616e\u3057\u305f\u8981\u7d20\u8ffd\u52a0<\/h4>\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=\"\">class HeavyObject {\n    \/\/ \u5927\u304d\u306a\u30e1\u30f3\u30d0\u30fc\u3092\u6301\u3064\u30af\u30e9\u30b9\n};\n\nstd::vector&lt;HeavyObject&gt; objects;\nobjects.reserve(100);\n\n\/\/ \u52b9\u7387\u7684\u306a\u8981\u7d20\u8ffd\u52a0\nfor (int i = 0; i &lt; 100; ++i) {\n    objects.emplace_back();  \/\/ \u30b3\u30d4\u30fc\u3092\u907f\u3051\u3066\u76f4\u63a5\u69cb\u7bc9\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-14\">\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u4e00\u89a7<\/h4>\n\n\n<div id=\"id-e14250e0-7c8d-438a-a514-31cf5b2be2b2\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u64cd\u4f5c<\/th><th>\u63a8\u5968\u3055\u308c\u308b\u4f7f\u7528\u6cd5<\/th><th>\u907f\u3051\u308b\u3079\u304d\u4f7f\u7528\u6cd5<\/th><\/tr><\/thead><tbody><tr><td>\u8981\u7d20\u8ffd\u52a0<\/td><td>reserve()\u306b\u3088\u308b\u4e8b\u524d\u78ba\u4fdd<\/td><td>\u983b\u7e41\u306a push_back()<\/td><\/tr><tr><td>\u30e1\u30e2\u30ea\u89e3\u653e<\/td><td>shrink_to_fit()\u306e\u9069\u5207\u306a\u4f7f\u7528<\/td><td>\u4e0d\u5fc5\u8981\u306aresize()<\/td><\/tr><tr><td>\u8981\u7d20\u69cb\u7bc9<\/td><td>emplace_back()\u306e\u6d3b\u7528<\/td><td>\u904e\u5ea6\u306a\u30b3\u30d4\u30fc\u64cd\u4f5c<\/td><\/tr><tr><td>\u5bb9\u91cf\u7ba1\u7406<\/td><td>\u9069\u5207\u306acapacity()\u306e\u76e3\u8996<\/td><td>\u7121\u8a08\u753b\u306a\u62e1\u5f35<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u3053\u308c\u3089\u306e\u57fa\u672c\u64cd\u4f5c\u3068\u7ba1\u7406\u624b\u6cd5\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u30e1\u30e2\u30ea\u6027\u80fd\u306e\u9ad8\u3044\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u3092\u6271\u3046\u5834\u5408\u3084\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u91cd\u8981\u306a\u5834\u9762\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u624b\u6cd5\u3092\u610f\u8b58\u7684\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-15\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u5927\u5316\u3059\u308b\u6226\u7565\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">reserve() \u3092\u4f7f\u3063\u305f\u30e1\u30e2\u30ea\u6700\u9069\u5316<\/h3>\n\n\n\n<p>\u30e1\u30e2\u30ea\u306e\u518d\u5272\u308a\u5f53\u3066\u306f\u3001vector\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u8981\u56e0\u306e\u4e00\u3064\u3067\u3059\u3002reserve()\u3092\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u554f\u984c\u3092\u52b9\u679c\u7684\u306b\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-17\">\u30e1\u30e2\u30ea\u518d\u5272\u308a\u5f53\u3066\u306e\u5f71\u97ff<\/h4>\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;vector&gt;\n#include &lt;chrono&gt;\n#include &lt;iostream&gt;\n\n\/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a08\u6e2c\u7528\u306e\u95a2\u6570\ntemplate&lt;typename Func&gt;\ndouble measure_time(Func f) {\n    auto start = std::chrono::high_resolution_clock::now();\n    f();\n    auto end = std::chrono::high_resolution_clock::now();\n    return std::chrono::duration&lt;double, std::milli&gt;(end - start).count();\n}\n\n\/\/ reserve()\u306a\u3057\u306e\u5834\u5408\ndouble without_reserve() {\n    return measure_time([]() {\n        std::vector&lt;int&gt; vec;\n        for (int i = 0; i &lt; 100000; ++i) {\n            vec.push_back(i);\n            \/\/ \u5bb9\u91cf\u304c\u4e0d\u8db3\u3059\u308b\u3068\u518d\u5272\u308a\u5f53\u3066\u304c\u767a\u751f\n        }\n    });\n}\n\n\/\/ reserve()\u4f7f\u7528\u306e\u5834\u5408\ndouble with_reserve() {\n    return measure_time([]() {\n        std::vector&lt;int&gt; vec;\n        vec.reserve(100000);  \/\/ \u4e8b\u524d\u306b\u5fc5\u8981\u306a\u5bb9\u91cf\u3092\u78ba\u4fdd\n        for (int i = 0; i &lt; 100000; ++i) {\n            vec.push_back(i);\n        }\n    });\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-18\">\u6700\u9069\u5316\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\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=\"\">\/\/ \u52b9\u7387\u7684\u306avector\u521d\u671f\u5316\nstd::vector&lt;int&gt; optimize_vector(size_t expected_size) {\n    std::vector&lt;int&gt; vec;\n    vec.reserve(expected_size);     \/\/ \u30e1\u30e2\u30ea\u306e\u4e8b\u524d\u78ba\u4fdd\n\n    \/\/ \u5bb9\u91cf\u3068\u4f7f\u7528\u91cf\u306e\u76e3\u8996\n    size_t current_capacity = vec.capacity();\n    double usage_ratio = static_cast&lt;double&gt;(vec.size()) \/ current_capacity;\n\n    return vec;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">emplace_back() \u3067\u52b9\u7387\u7684\u306b\u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b<\/h3>\n\n\n\n<p>emplace_back()\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u76f4\u63a5\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u8981\u306a\u30b3\u30d4\u30fc\u3084\u79fb\u52d5\u3092\u907f\u3051\u308b\u3053\u3068\u304c\u3067\u304d\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=\"\">class ExpensiveObject {\npublic:\n    ExpensiveObject(int data, std::string name) \n        : data_(data), name_(std::move(name)) {}\n\nprivate:\n    int data_;\n    std::string name_;\n};\n\n\/\/ \u975e\u52b9\u7387\u7684\u306a\u65b9\u6cd5\nvoid inefficient_addition() {\n    std::vector&lt;ExpensiveObject&gt; objects;\n    objects.push_back(ExpensiveObject(42, \"test\"));  \/\/ \u4e00\u6642\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u751f\u6210\u3068\u30e0\u30fc\u30d6\u304c\u767a\u751f\n}\n\n\/\/ \u52b9\u7387\u7684\u306a\u65b9\u6cd5\nvoid efficient_addition() {\n    std::vector&lt;ExpensiveObject&gt; objects;\n    objects.emplace_back(42, \"test\");  \/\/ \u76f4\u63a5\u69cb\u7bc9\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-20\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03<\/h4>\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=\"\">template&lt;typename Container&gt;\nvoid compare_insertion_methods() {\n    \/\/ push_back vs emplace_back \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03\n    Container push_container;\n    auto push_time = measure_time([&amp;]() {\n        for (int i = 0; i &lt; 100000; ++i) {\n            push_container.push_back(ExpensiveObject(i, \"test\"));\n        }\n    });\n\n    Container emplace_container;\n    auto emplace_time = measure_time([&amp;]() {\n        for (int i = 0; i &lt; 100000; ++i) {\n            emplace_container.emplace_back(i, \"test\");\n        }\n    });\n\n    std::cout &lt;&lt; \"Push back time: \" &lt;&lt; push_time &lt;&lt; \"ms\\n\";\n    std::cout &lt;&lt; \"Emplace back time: \" &lt;&lt; emplace_time &lt;&lt; \"ms\\n\";\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">\u4e0d\u8981\u306a\u30b3\u30d4\u30fc\u3092\u6e1b\u3089\u3059\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-22\">1. \u53c2\u7167\u306b\u3088\u308b\u8981\u7d20\u30a2\u30af\u30bb\u30b9<\/h4>\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=\"\">std::vector&lt;std::string&gt; strings = {\"long string\", \"another long string\"};\n\n\/\/ \u975e\u52b9\u7387\u7684\u306a\u30a2\u30af\u30bb\u30b9\nfor (std::string str : strings) {  \/\/ \u5404\u8981\u7d20\u304c\u30b3\u30d4\u30fc\u3055\u308c\u308b\n    \/\/ \u51e6\u7406\n}\n\n\/\/ \u52b9\u7387\u7684\u306a\u30a2\u30af\u30bb\u30b9\nfor (const std::string&amp; str : strings) {  \/\/ \u53c2\u7167\u306b\u3088\u308b\u30a2\u30af\u30bb\u30b9\n    \/\/ \u51e6\u7406\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-23\">2. \u79fb\u52d5\u30bb\u30de\u30f3\u30c6\u30a3\u30af\u30b9\u306e\u6d3b\u7528<\/h4>\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=\"\">std::vector&lt;std::string&gt; create_and_fill() {\n    std::vector&lt;std::string&gt; result;\n    result.reserve(1000);\n\n    for (int i = 0; i &lt; 1000; ++i) {\n        std::string temp = \"string \" + std::to_string(i);\n        result.push_back(std::move(temp));  \/\/ \u79fb\u52d5\u306b\u3088\u308b\u30b3\u30d4\u30fc\u524a\u6e1b\n    }\n\n    return result;  \/\/ RVO\uff08Return Value Optimization\uff09\u304c\u9069\u7528\u3055\u308c\u308b\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-24\">3. \u30c7\u30fc\u30bf\u69cb\u9020\u306e\u6700\u9069\u5316<\/h4>\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=\"\">\/\/ \u30e1\u30e2\u30ea\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u6700\u9069\u5316\u3057\u305f\u69cb\u9020\u4f53\nstruct OptimizedStruct {\n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\uff0864\u30d0\u30a4\u30c8\uff09\u3092\u8003\u616e\u3057\u305f\u30e1\u30f3\u30d0\u30fc\u914d\u7f6e\n    std::array&lt;int, 16&gt; frequently_accessed_data;  \/\/ 64\u30d0\u30a4\u30c8\n    std::string rarely_accessed_data;              \/\/ \u5225\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\n};\n\nstd::vector&lt;OptimizedStruct&gt; optimized_vector;<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-25\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h4>\n\n\n<div id=\"id-b1651207-6a96-4b9a-9d61-a0a4e9b5f1a3\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6700\u9069\u5316\u30dd\u30a4\u30f3\u30c8<\/th><th>\u5b9f\u88c5\u65b9\u6cd5<\/th><th>\u671f\u5f85\u3055\u308c\u308b\u52b9\u679c<\/th><\/tr><\/thead><tbody><tr><td>\u30e1\u30e2\u30ea\u4e88\u7d04<\/td><td>reserve()<\/td><td>\u518d\u5272\u308a\u5f53\u3066\u306e\u524a\u6e1b<\/td><\/tr><tr><td>\u8981\u7d20\u69cb\u7bc9<\/td><td>emplace_back()<\/td><td>\u30b3\u30d4\u30fc\/\u30e0\u30fc\u30d6\u306e\u524a\u6e1b<\/td><\/tr><tr><td>\u8981\u7d20\u30a2\u30af\u30bb\u30b9<\/td><td>const\u53c2\u7167<\/td><td>\u4e0d\u8981\u306a\u30b3\u30d4\u30fc\u306e\u9632\u6b62<\/td><\/tr><tr><td>\u30e1\u30e2\u30ea\u7ba1\u7406<\/td><td>shrink_to_fit()<\/td><td>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316<\/td><\/tr><tr><td>\u30c7\u30fc\u30bf\u69cb\u9020<\/td><td>\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u8003\u616e<\/td><td>\u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387\u306e\u5411\u4e0a<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\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\u3001vector\u3092\u4f7f\u7528\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\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\u904e\u5ea6\u306a\u6700\u9069\u5316\u306f\u53ef\u8aad\u6027\u3092\u640d\u306a\u3046\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u5b9f\u969b\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-26\">\u5b9f\u52d9\u3067\u306e\u6d3b\u7528\u4e8b\u4f8b\u3068\u5fdc\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-27\">\u5927\u91cf\u30c7\u30fc\u30bf\u51e6\u7406\u3067\u306e\u52b9\u7387\u7684\u306a\u4f7f\u3044\u65b9\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u3092\u6271\u3046\u969b\u306e\u52b9\u7387\u7684\u306avector\u306e\u4f7f\u7528\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-28\">1. \u30c7\u30fc\u30bf\u30d0\u30c3\u30c1\u51e6\u7406\u306e\u5b9f\u88c5<\/h4>\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;vector&gt;\n#include &lt;algorithm&gt;\n#include &lt;numeric&gt;\n\nclass DataProcessor {\npublic:\n    \/\/ \u30d0\u30c3\u30c1\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\u3057\u3066\u521d\u671f\u5316\n    DataProcessor(size_t batch_size) : batch_size_(batch_size) {\n        buffer_.reserve(batch_size);\n    }\n\n    \/\/ \u30c7\u30fc\u30bf\u306e\u8ffd\u52a0\u3068\u81ea\u52d5\u30d0\u30c3\u30c1\u51e6\u7406\n    void add_data(const double value) {\n        buffer_.push_back(value);\n\n        if (buffer_.size() &gt;= batch_size_) {\n            process_batch();\n        }\n    }\n\n    \/\/ \u6b8b\u308a\u306e\u30c7\u30fc\u30bf\u3092\u51e6\u7406\n    void flush() {\n        if (!buffer_.empty()) {\n            process_batch();\n        }\n    }\n\nprivate:\n    void process_batch() {\n        \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u30ed\u30b8\u30c3\u30af\n        double sum = std::accumulate(buffer_.begin(), buffer_.end(), 0.0);\n        double average = sum \/ buffer_.size();\n\n        \/\/ \u51e6\u7406\u7d50\u679c\u3092\u4fdd\u5b58\n        results_.push_back(average);\n\n        \/\/ \u30d0\u30c3\u30d5\u30a1\u3092\u30af\u30ea\u30a2\n        buffer_.clear();\n    }\n\n    std::vector&lt;double&gt; buffer_;\n    std::vector&lt;double&gt; results_;\n    size_t batch_size_;\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-29\">2. \u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0<\/h4>\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=\"\">template&lt;typename T&gt;\nclass DataFilter {\npublic:\n    \/\/ \u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u6761\u4ef6\u3092\u9069\u7528\n    std::vector&lt;T&gt; filter(const std::vector&lt;T&gt;&amp; data, \n                         std::function&lt;bool(const T&amp;)&gt; predicate) {\n        std::vector&lt;T&gt; filtered;\n        filtered.reserve(data.size()); \/\/ \u6700\u60aa\u306e\u30b1\u30fc\u30b9\u306b\u5099\u3048\u3066\u4e88\u7d04\n\n        std::copy_if(data.begin(), data.end(), \n                    std::back_inserter(filtered), predicate);\n\n        filtered.shrink_to_fit(); \/\/ \u672a\u4f7f\u7528\u306e\u30e1\u30e2\u30ea\u3092\u89e3\u653e\n        return filtered;\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-30\">\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u3067\u306e\u5b89\u5168\u306a\u64cd\u4f5c<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-31\">1. \u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306avector\u30e9\u30c3\u30d1\u30fc<\/h4>\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;mutex&gt;\n#include &lt;shared_mutex&gt;\n\ntemplate&lt;typename T&gt;\nclass ThreadSafeVector {\npublic:\n    void push_back(const T&amp; value) {\n        std::unique_lock&lt;std::shared_mutex&gt; lock(mutex_);\n        data_.push_back(value);\n    }\n\n    bool empty() const {\n        std::shared_lock&lt;std::shared_mutex&gt; lock(mutex_);\n        return data_.empty();\n    }\n\n    size_t size() const {\n        std::shared_lock&lt;std::shared_mutex&gt; lock(mutex_);\n        return data_.size();\n    }\n\n    \/\/ \u7bc4\u56f2\u30d9\u30fc\u30b9\u306efor\u6587\u306e\u30b5\u30dd\u30fc\u30c8\n    auto begin() {\n        std::shared_lock&lt;std::shared_mutex&gt; lock(mutex_);\n        return data_.begin();\n    }\n\n    auto end() {\n        std::shared_lock&lt;std::shared_mutex&gt; lock(mutex_);\n        return data_.end();\n    }\n\nprivate:\n    std::vector&lt;T&gt; data_;\n    mutable std::shared_mutex mutex_;\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-32\">2. \u4e26\u5217\u51e6\u7406\u3067\u306e\u6d3b\u7528\u4f8b<\/h4>\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;thread&gt;\n#include &lt;future&gt;\n\ntemplate&lt;typename T&gt;\nclass ParallelProcessor {\npublic:\n    \/\/ \u4e26\u5217\u30c7\u30fc\u30bf\u51e6\u7406\n    std::vector&lt;T&gt; process_parallel(const std::vector&lt;T&gt;&amp; input, \n                                  std::function&lt;T(const T&amp;)&gt; processor,\n                                  size_t thread_count) {\n        std::vector&lt;T&gt; result(input.size());\n        std::vector&lt;std::future&lt;void&gt;&gt; futures;\n\n        size_t chunk_size = input.size() \/ thread_count;\n\n        for (size_t i = 0; i &lt; thread_count; ++i) {\n            size_t start = i * chunk_size;\n            size_t end = (i == thread_count - 1) ? input.size() \n                                                : (i + 1) * chunk_size;\n\n            futures.push_back(std::async(std::launch::async,\n                [&amp;, start, end]() {\n                    for (size_t j = start; j &lt; end; ++j) {\n                        result[j] = processor(input[j]);\n                    }\n                }));\n        }\n\n        \/\/ \u3059\u3079\u3066\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u5b8c\u4e86\u3092\u5f85\u6a5f\n        for (auto&amp; future : futures) {\n            future.wait();\n        }\n\n        return result;\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-33\">\u30ab\u30b9\u30bf\u30e0\u30a2\u30ed\u30b1\u30fc\u30bf\u306e\u5b9f\u88c5\u3068\u6d3b\u7528<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-34\">1. \u30d7\u30fc\u30eb\u30a2\u30ed\u30b1\u30fc\u30bf\u306e\u5b9f\u88c5<\/h4>\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=\"\">template&lt;typename T&gt;\nclass PoolAllocator {\npublic:\n    using value_type = T;\n\n    PoolAllocator(size_t pool_size) : pool_size_(pool_size) {\n        memory_pool_ = std::malloc(pool_size * sizeof(T));\n        free_blocks_.reserve(pool_size);\n        for (size_t i = 0; i &lt; pool_size; ++i) {\n            free_blocks_.push_back(static_cast&lt;T*&gt;(memory_pool_) + i);\n        }\n    }\n\n    ~PoolAllocator() {\n        std::free(memory_pool_);\n    }\n\n    T* allocate(size_t n) {\n        if (n &gt; free_blocks_.size()) {\n            throw std::bad_alloc();\n        }\n\n        T* ptr = free_blocks_.back();\n        free_blocks_.pop_back();\n        return ptr;\n    }\n\n    void deallocate(T* p, size_t n) {\n        free_blocks_.push_back(p);\n    }\n\nprivate:\n    void* memory_pool_;\n    std::vector&lt;T*&gt; free_blocks_;\n    size_t pool_size_;\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-35\">2. \u30ab\u30b9\u30bf\u30e0\u30a2\u30ed\u30b1\u30fc\u30bf\u306e\u4f7f\u7528\u4f8b<\/h4>\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=\"\">\/\/ \u30ab\u30b9\u30bf\u30e0\u30a2\u30ed\u30b1\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u305fvector\ntemplate&lt;typename T&gt;\nusing PoolVector = std::vector&lt;T, PoolAllocator&lt;T&gt;&gt;;\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid use_pool_vector() {\n    PoolAllocator&lt;int&gt; allocator(1000);\n    PoolVector&lt;int&gt; numbers(allocator);\n\n    numbers.reserve(100);\n    for (int i = 0; i &lt; 100; ++i) {\n        numbers.push_back(i);\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-36\">\u5b9f\u88c5\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u4e00\u89a7<\/h4>\n\n\n<div id=\"id-956cbd55-eddd-40f5-b384-315860c8bdd8\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30b7\u30ca\u30ea\u30aa<\/th><th>\u63a8\u5968\u3055\u308c\u308b\u5b9f\u88c5<\/th><th>\u4e3b\u306a\u5229\u70b9<\/th><\/tr><\/thead><tbody><tr><td>\u5927\u91cf\u30c7\u30fc\u30bf\u51e6\u7406<\/td><td>\u30d0\u30c3\u30c1\u51e6\u7406<\/td><td>\u30e1\u30e2\u30ea\u52b9\u7387\u306e\u5411\u4e0a<\/td><\/tr><tr><td>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9<\/td><td>\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u30e9\u30c3\u30d1\u30fc<\/td><td>\u30c7\u30fc\u30bf\u7af6\u5408\u306e\u9632\u6b62<\/td><\/tr><tr><td>\u30e1\u30e2\u30ea\u6700\u9069\u5316<\/td><td>\u30ab\u30b9\u30bf\u30e0\u30a2\u30ed\u30b1\u30fc\u30bf<\/td><td>\u30a2\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u52b9\u7387\u306e\u5411\u4e0a<\/td><\/tr><tr><td>\u4e26\u5217\u51e6\u7406<\/td><td>\u4e26\u5217\u30d7\u30ed\u30bb\u30c3\u30b5<\/td><td>\u51e6\u7406\u901f\u5ea6\u306e\u5411\u4e0a<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u88c5\u4f8b\u306f\u3001\u5b9f\u969b\u306e\u958b\u767a\u73fe\u5834\u3067\u3088\u304f\u906d\u9047\u3059\u308b\u8ab2\u984c\u306b\u5bfe\u3059\u308b\u89e3\u6c7a\u7b56\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u5b9f\u88c5\u3092\u9078\u629e\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u5b89\u5168\u306a\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-37\">\u3088\u304f\u3042\u308b\u30d0\u30b0\u3068\u5bfe\u51e6\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-38\">\u7bc4\u56f2\u5916\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-39\">1. \u7bc4\u56f2\u5916\u30a2\u30af\u30bb\u30b9\u306e\u4e00\u822c\u7684\u306a\u30b1\u30fc\u30b9<\/h4>\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;vector&gt;\n#include &lt;stdexcept&gt;\n\nclass VectorSafeAccess {\npublic:\n    static void demonstrate_common_errors() {\n        std::vector&lt;int&gt; numbers = {1, 2, 3};\n\n        try {\n            \/\/ \u5371\u967a\u306a\u64cd\u4f5c\u4f8b1: \u5883\u754c\u30c1\u30a7\u30c3\u30af\u306a\u3057\u306e\u6dfb\u5b57\u30a2\u30af\u30bb\u30b9\n            int value = numbers[5];  \/\/ \u672a\u5b9a\u7fa9\u52d5\u4f5c\n\n            \/\/ \u5b89\u5168\u306a\u64cd\u4f5c\u4f8b1: at()\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u7528\n            value = numbers.at(5);   \/\/ std::out_of_range\u4f8b\u5916\u3092\u30b9\u30ed\u30fc\n        } catch (const std::out_of_range&amp; e) {\n            \/\/ \u4f8b\u5916\u51e6\u7406\n        }\n\n        \/\/ \u5371\u967a\u306a\u64cd\u4f5c\u4f8b2: \u7a7a\u306evector\u3078\u306e\u30a2\u30af\u30bb\u30b9\n        std::vector&lt;int&gt; empty_vec;\n        \/\/ front()\u3084back()\u3092\u547c\u3076\u524d\u306b\u5fc5\u305a\u30c1\u30a7\u30c3\u30af\n        if (!empty_vec.empty()) {\n            int first = empty_vec.front();\n        }\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-40\">2. \u5b89\u5168\u306a\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3<\/h4>\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=\"\">class SafeIteration {\npublic:\n    template&lt;typename T&gt;\n    static void safe_iterate(const std::vector&lt;T&gt;&amp; vec) {\n        \/\/ \u7bc4\u56f2\u30d9\u30fc\u30b9for\u30eb\u30fc\u30d7\uff08\u6700\u3082\u5b89\u5168\uff09\n        for (const auto&amp; element : vec) {\n            \/\/ \u7bc4\u56f2\u5916\u30a2\u30af\u30bb\u30b9\u306e\u5fc3\u914d\u306a\u3057\n        }\n\n        \/\/ \u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306e\u5b89\u5168\u306a\u30d1\u30bf\u30fc\u30f3\n        for (auto it = vec.begin(); it != vec.end(); ++it) {\n            \/\/ \u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u6709\u52b9\u6027\u3092\u78ba\u8a8d\n            if (it != vec.end()) {\n                \/\/ \u5b89\u5168\u306a\u30a2\u30af\u30bb\u30b9\n            }\n        }\n    }\n\n    \/\/ \u5883\u754c\u30c1\u30a7\u30c3\u30af\u7528\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u95a2\u6570\n    template&lt;typename T&gt;\n    static bool is_valid_index(const std::vector&lt;T&gt;&amp; vec, size_t index) {\n        return index &lt; vec.size();\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-41\">\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050\u305f\u3081\u306e\u6ce8\u610f\u70b9<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-42\">1. \u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306e\u6d3b\u7528<\/h4>\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;memory&gt;\n\nclass ResourceManager {\npublic:\n    \/\/ \u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050\u305f\u3081\u306e\u69cb\u9020\n    struct Resource {\n        std::vector&lt;std::unique_ptr&lt;int&gt;&gt; data;\n\n        void add_data(int value) {\n            \/\/ \u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3092\u4f7f\u7528\u3057\u3066\u30e1\u30e2\u30ea\u7ba1\u7406\u3092\u81ea\u52d5\u5316\n            data.push_back(std::make_unique&lt;int&gt;(value));\n        }\n    };\n\n    \/\/ \u30ea\u30bd\u30fc\u30b9\u306e\u5b89\u5168\u306a\u7ba1\u7406\n    static void manage_resources() {\n        std::vector&lt;std::shared_ptr&lt;Resource&gt;&gt; resources;\n\n        \/\/ \u30ea\u30bd\u30fc\u30b9\u306e\u8ffd\u52a0\n        resources.push_back(std::make_shared&lt;Resource&gt;());\n\n        \/\/ \u30b9\u30b3\u30fc\u30d7\u3092\u629c\u3051\u308b\u3068\u81ea\u52d5\u7684\u306b\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-43\">2. RAII\u539f\u5247\u306e\u9069\u7528<\/h4>\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=\"\">class RAIIExample {\npublic:\n    class ScopedResource {\n    public:\n        ScopedResource() {\n            \/\/ \u30ea\u30bd\u30fc\u30b9\u306e\u78ba\u4fdd\n            data_.reserve(initial_capacity);\n        }\n\n        ~ScopedResource() {\n            \/\/ \u81ea\u52d5\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\n            data_.clear();\n            data_.shrink_to_fit();\n        }\n\n    private:\n        std::vector&lt;int&gt; data_;\n        static const size_t initial_capacity = 1000;\n    };\n\n    static void use_scoped_resource() {\n        ScopedResource resource;\n        \/\/ \u30ea\u30bd\u30fc\u30b9\u306e\u4f7f\u7528\n        \/\/ \u30b9\u30b3\u30fc\u30d7\u3092\u629c\u3051\u308b\u3068\u81ea\u52d5\u7684\u306b\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-44\">\u30a4\u30c6\u30ec\u30fc\u30bf\u7121\u52b9\u5316\u306e\u7f60\u3068\u5bfe\u7b56<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-45\">1. \u30a4\u30c6\u30ec\u30fc\u30bf\u7121\u52b9\u5316\u306e\u5178\u578b\u7684\u306a\u30b1\u30fc\u30b9<\/h4>\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=\"\">class IteratorInvalidation {\npublic:\n    static void demonstrate_invalidation() {\n        std::vector&lt;int&gt; numbers = {1, 2, 3, 4, 5};\n\n        \/\/ \u5371\u967a\u306a\u30d1\u30bf\u30fc\u30f3\n        for (auto it = numbers.begin(); it != numbers.end(); ++it) {\n            if (*it == 3) {\n                numbers.push_back(6);  \/\/ \u30a4\u30c6\u30ec\u30fc\u30bf\u304c\u7121\u52b9\u5316\u3055\u308c\u308b\n                \/\/ \u4ee5\u964d\u306e\u64cd\u4f5c\u306f\u672a\u5b9a\u7fa9\u52d5\u4f5c\n            }\n        }\n\n        \/\/ \u5b89\u5168\u306a\u30d1\u30bf\u30fc\u30f3\n        for (size_t i = 0; i &lt; numbers.size(); ++i) {\n            if (numbers[i] == 3) {\n                numbers.push_back(6);  \/\/ \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u7121\u52b9\u5316\u3055\u308c\u306a\u3044\n            }\n        }\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-46\">2. \u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u5b89\u5168\u306a\u66f4\u65b0<\/h4>\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=\"\">class SafeIteratorUpdate {\npublic:\n    template&lt;typename T&gt;\n    static void safe_modification(std::vector&lt;T&gt;&amp; vec) {\n        \/\/ \u5909\u66f4\u304c\u5fc5\u8981\u306a\u8981\u7d20\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8a18\u9332\n        std::vector&lt;size_t&gt; indices_to_modify;\n\n        for (size_t i = 0; i &lt; vec.size(); ++i) {\n            if (\u9700\u8981_modification(vec[i])) {\n                indices_to_modify.push_back(i);\n            }\n        }\n\n        \/\/ \u8a18\u9332\u3057\u305f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u7528\u3057\u3066\u5b89\u5168\u306b\u66f4\u65b0\n        for (auto index : indices_to_modify) {\n            if (index &lt; vec.size()) {  \/\/ \u7bc4\u56f2\u30c1\u30a7\u30c3\u30af\n                modify_element(vec[index]);\n            }\n        }\n    }\n\nprivate:\n    template&lt;typename T&gt;\n    static bool needs_modification(const T&amp; element) {\n        \/\/ \u4fee\u6b63\u304c\u5fc5\u8981\u304b\u3069\u3046\u304b\u306e\u5224\u5b9a\u30ed\u30b8\u30c3\u30af\n        return true;\n    }\n\n    template&lt;typename T&gt;\n    static void modify_element(T&amp; element) {\n        \/\/ \u8981\u7d20\u306e\u4fee\u6b63\u30ed\u30b8\u30c3\u30af\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-47\">\u30d0\u30b0\u9632\u6b62\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h4>\n\n\n<div id=\"id-950a209e-177f-4e17-8349-7e35323377e3\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30d0\u30b0\u306e\u7a2e\u985e<\/th><th>\u4e88\u9632\u65b9\u6cd5<\/th><th>\u691c\u51fa\u65b9\u6cd5<\/th><\/tr><\/thead><tbody><tr><td>\u7bc4\u56f2\u5916\u30a2\u30af\u30bb\u30b9<\/td><td>at()\u306e\u4f7f\u7528\u3001\u5883\u754c\u30c1\u30a7\u30c3\u30af<\/td><td>\u4f8b\u5916\u51e6\u7406\u3001\u30a2\u30b5\u30fc\u30b7\u30e7\u30f3<\/td><\/tr><tr><td>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af<\/td><td>\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3001RAII<\/td><td>\u30e1\u30e2\u30ea\u30c1\u30a7\u30c3\u30ab\u30fc<\/td><\/tr><tr><td>\u30a4\u30c6\u30ec\u30fc\u30bf\u7121\u52b9\u5316<\/td><td>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f7f\u7528\u3001\u53c2\u7167\u4fdd\u6301<\/td><td>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3001\u9759\u7684\u89e3\u6790<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\" id=\"i-48\">\u30c7\u30d0\u30c3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e8b\u524d\u6761\u4ef6\u306e\u691c\u8a3c<\/strong><\/li>\n<\/ol>\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=\"\">template&lt;typename T&gt;\nvoid safe_vector_operations(std::vector&lt;T&gt;&amp; vec) {\n    assert(!vec.empty() &amp;&amp; \"Vector must not be empty\");\n    \/\/ \u64cd\u4f5c\u306e\u5b9f\u884c\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u4f8b\u5916\u5b89\u5168\u6027\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\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=\"\">template&lt;typename T&gt;\nvoid exception_safe_push(std::vector&lt;T&gt;&amp; vec, const T&amp; value) {\n    try {\n        vec.push_back(value);\n    } catch (const std::bad_alloc&amp; e) {\n        \/\/ \u30e1\u30e2\u30ea\u78ba\u4fdd\u5931\u6557\u306e\u51e6\u7406\n        handle_allocation_failure();\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u306e\u51fa\u529b<\/strong><\/li>\n<\/ol>\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;\nvoid vector_state_debug(const std::vector&lt;int&gt;&amp; vec) {\n    std::cout &lt;&lt; \"Size: \" &lt;&lt; vec.size() \n              &lt;&lt; \", Capacity: \" &lt;&lt; vec.capacity() &lt;&lt; std::endl;\n    \/\/ \u305d\u306e\u4ed6\u306e\u72b6\u614b\u60c5\u5831\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5bfe\u7b56\u3092\u9069\u5207\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u591a\u304f\u306e\u4e00\u822c\u7684\u306a\u30d0\u30b0\u3092\u9632\u304e\u3001\u3088\u308a\u5b89\u5168\u306a\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-49\">\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\uff1a\u7167\u5408\u6700\u9069\u5316\u3068\u5fdc\u7528<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-50\">STL\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u6d3b\u7528\u6cd5<\/h3>\n\n\n\n<p>\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068vector\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u8868\u73fe\u529b\u8c4a\u304b\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-51\">1. \u9ad8\u5ea6\u306a\u691c\u7d22\u3068\u7167\u5408<\/h4>\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;algorithm&gt;\n#include &lt;vector&gt;\n#include &lt;numeric&gt;\n\nclass AdvancedSearch {\npublic:\n    \/\/ \u4e8c\u5206\u63a2\u7d22\u3092\u4f7f\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u691c\u7d22\n    template&lt;typename T&gt;\n    static bool binary_search_optimized(const std::vector&lt;T&gt;&amp; vec, const T&amp; target) {\n        \/\/ \u4e8b\u524d\u6761\u4ef6\uff1a\u30d9\u30af\u30c8\u30eb\u304c\u30bd\u30fc\u30c8\u6e08\u307f\u3067\u3042\u308b\u3053\u3068\n        assert(std::is_sorted(vec.begin(), vec.end()) &amp;&amp; \n               \"Vector must be sorted for binary search\");\n\n        return std::binary_search(vec.begin(), vec.end(), target);\n    }\n\n    \/\/ \u90e8\u5206\u4e00\u81f4\u691c\u7d22\u306e\u5b9f\u88c5\n    template&lt;typename T&gt;\n    static std::vector&lt;size_t&gt; partial_match(const std::vector&lt;T&gt;&amp; vec,\n                                           const std::vector&lt;T&gt;&amp; pattern) {\n        std::vector&lt;size_t&gt; matches;\n        auto it = vec.begin();\n\n        while ((it = std::search(it, vec.end(), \n                pattern.begin(), pattern.end())) != vec.end()) {\n            matches.push_back(std::distance(vec.begin(), it));\n            ++it;\n        }\n\n        return matches;\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-52\">2. \u52b9\u7387\u7684\u306a\u5909\u63db\u3068\u52a0\u5de5<\/h4>\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=\"\">class VectorTransformation {\npublic:\n    \/\/ \u4e26\u5217\u51e6\u7406\u3092\u6d3b\u7528\u3057\u305f\u5909\u63db\n    template&lt;typename T, typename Func&gt;\n    static std::vector&lt;T&gt; parallel_transform(const std::vector&lt;T&gt;&amp; input, \n                                           Func transformer) {\n        std::vector&lt;T&gt; result(input.size());\n\n        #pragma omp parallel for\n        for (size_t i = 0; i &lt; input.size(); ++i) {\n            result[i] = transformer(input[i]);\n        }\n\n        return result;\n    }\n\n    \/\/ \u96c6\u7d04\u51e6\u7406\u306e\u6700\u9069\u5316\n    template&lt;typename T&gt;\n    static T optimized_accumulate(const std::vector&lt;T&gt;&amp; vec) {\n        return std::reduce(std::execution::par, \n                         vec.begin(), vec.end(), T{});\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-53\">\u30ab\u30b9\u30bf\u30e0\u30af\u30e9\u30b9\u3067vector\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-54\">1. \u52b9\u7387\u7684\u306a\u30ab\u30b9\u30bf\u30e0\u30af\u30e9\u30b9\u306e\u5b9f\u88c5<\/h4>\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=\"\">class OptimizedCustomClass {\npublic:\n    OptimizedCustomClass(int data = 0) : data_(data) {}\n\n    \/\/ \u30e0\u30fc\u30d6\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u6700\u9069\u5316\n    OptimizedCustomClass(OptimizedCustomClass&amp;&amp; other) noexcept\n        : data_(std::exchange(other.data_, 0)) {}\n\n    \/\/ \u30e0\u30fc\u30d6\u4ee3\u5165\u6f14\u7b97\u5b50\u306e\u6700\u9069\u5316\n    OptimizedCustomClass&amp; operator=(OptimizedCustomClass&amp;&amp; other) noexcept {\n        if (this != &amp;other) {\n            data_ = std::exchange(other.data_, 0);\n        }\n        return *this;\n    }\n\n    \/\/ \u6bd4\u8f03\u6f14\u7b97\u5b50\u306e\u5b9f\u88c5\uff08STL\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u7528\uff09\n    bool operator&lt;(const OptimizedCustomClass&amp; other) const {\n        return data_ &lt; other.data_;\n    }\n\nprivate:\n    int data_;\n};\n\n\/\/ \u30ab\u30b9\u30bf\u30e0\u30a2\u30ed\u30b1\u30fc\u30bf\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\ntemplate&lt;typename T&gt;\nclass CustomAllocator {\npublic:\n    using value_type = T;\n\n    T* allocate(std::size_t n) {\n        return static_cast&lt;T*&gt;(::operator new(n * sizeof(T)));\n    }\n\n    void deallocate(T* p, std::size_t n) {\n        ::operator delete(p);\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-55\">2. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/h4>\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=\"\">class PerformanceOptimizations {\npublic:\n    \/\/ \u30e1\u30e2\u30ea\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u6700\u9069\u5316\n    struct CacheOptimizedStruct {\n        \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u306b\u5408\u308f\u305b\u305f\u914d\u7f6e\n        alignas(64) std::array&lt;int, 16&gt; hot_data;\n        std::string cold_data;\n    };\n\n    \/\/ \u30d9\u30af\u30c8\u30eb\u64cd\u4f5c\u306e\u6700\u9069\u5316\n    static void optimize_vector_operations() {\n        std::vector&lt;CacheOptimizedStruct&gt; vec;\n        vec.reserve(1000);  \/\/ \u30e1\u30e2\u30ea\u518d\u5272\u308a\u5f53\u3066\u306e\u56de\u907f\n\n        \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\u306b\u3088\u308b\u52b9\u7387\u5316\n        std::vector&lt;CacheOptimizedStruct&gt; batch;\n        batch.reserve(100);\n\n        for (size_t i = 0; i &lt; 1000; ++i) {\n            batch.push_back(CacheOptimizedStruct{});\n\n            if (batch.size() == 100) {\n                \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u5b9f\u884c\n                process_batch(batch);\n                batch.clear();\n            }\n        }\n    }\n\nprivate:\n    static void process_batch(std::vector&lt;CacheOptimizedStruct&gt;&amp; batch) {\n        \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u5b9f\u88c5\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-56\">\u3088\u308a\u9ad8\u5ea6\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u3078\u306e\u767a\u5c55<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-57\">1. 2\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u306e\u6700\u9069\u5316<\/h4>\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=\"\">class Advanced2DVector {\npublic:\n    \/\/ \u52b9\u7387\u7684\u306a2\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u5b9f\u88c5\n    template&lt;typename T&gt;\n    class Matrix {\n    public:\n        Matrix(size_t rows, size_t cols) \n            : data_(rows * cols), rows_(rows), cols_(cols) {}\n\n        T&amp; at(size_t row, size_t col) {\n            return data_[row * cols_ + col];\n        }\n\n        const T&amp; at(size_t row, size_t col) const {\n            return data_[row * cols_ + col];\n        }\n\n    private:\n        std::vector&lt;T&gt; data_;\n        size_t rows_;\n        size_t cols_;\n    };\n\n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387\u306e\u826f\u3044\u8d70\u67fb\n    template&lt;typename T&gt;\n    static void cache_efficient_traverse(Matrix&lt;T&gt;&amp; matrix) {\n        for (size_t i = 0; i &lt; matrix.rows(); ++i) {\n            for (size_t j = 0; j &lt; matrix.cols(); ++j) {\n                process_element(matrix.at(i, j));\n            }\n        }\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-58\">2. \u7279\u6b8a\u5316\u3055\u308c\u305f\u30b3\u30f3\u30c6\u30ca\u306e\u5b9f\u88c5<\/h4>\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=\"\">template&lt;typename T&gt;\nclass SpecializedContainer {\npublic:\n    \/\/ \u56fa\u5b9a\u30b5\u30a4\u30ba\u30d9\u30af\u30c8\u30eb\n    template&lt;size_t N&gt;\n    class StaticVector {\n    public:\n        void push_back(const T&amp; value) {\n            if (size_ &lt; N) {\n                data_[size_++] = value;\n            }\n        }\n\n        size_t size() const { return size_; }\n        size_t capacity() const { return N; }\n\n    private:\n        std::array&lt;T, N&gt; data_;\n        size_t size_ = 0;\n    };\n\n    \/\/ \u5faa\u74b0\u30d0\u30c3\u30d5\u30a1\u306e\u5b9f\u88c5\n    class CircularBuffer {\n    public:\n        CircularBuffer(size_t capacity) \n            : data_(capacity), head_(0), tail_(0), size_(0) {}\n\n        void push(const T&amp; value) {\n            data_[tail_] = value;\n            tail_ = (tail_ + 1) % data_.size();\n            if (size_ &lt; data_.size()) {\n                ++size_;\n            } else {\n                head_ = (head_ + 1) % data_.size();\n            }\n        }\n\n    private:\n        std::vector&lt;T&gt; data_;\n        size_t head_, tail_, size_;\n    };\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-59\">\u767a\u5c55\u7684\u306a\u5b9f\u88c5\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\n\n\n<div id=\"id-cc8a8009-fb70-4b60-9499-705c8ea6d8bc\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3<\/th><th>\u4f7f\u7528\u30b7\u30fc\u30f3<\/th><th>\u4e3b\u306a\u5229\u70b9<\/th><\/tr><\/thead><tbody><tr><td>STL\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/td><td>\u30c7\u30fc\u30bf\u51e6\u7406<\/td><td>\u6700\u9069\u5316\u3055\u308c\u305f\u5b9f\u88c5<\/td><\/tr><tr><td>\u30ab\u30b9\u30bf\u30e0\u30af\u30e9\u30b9<\/td><td>\u7279\u6b8a\u306a\u30c7\u30fc\u30bf\u69cb\u9020<\/td><td>\u30e1\u30e2\u30ea\u52b9\u7387\u306e\u5411\u4e0a<\/td><\/tr><tr><td>2\u6b21\u5143\u914d\u5217<\/td><td>\u884c\u5217\u6f14\u7b97<\/td><td>\u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387\u306e\u6539\u5584<\/td><\/tr><tr><td>\u7279\u6b8a\u30b3\u30f3\u30c6\u30ca<\/td><td>\u7279\u5b9a\u7528\u9014<\/td><td>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u3053\u308c\u3089\u306e\u9ad8\u5ea6\u306a\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7406\u89e3\u3057\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u52b9\u7387\u7684\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; 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