{"id":2191,"date":"2025-03-24T08:48:03","date_gmt":"2025-03-23T23:48:03","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=2191"},"modified":"2025-03-24T08:48:28","modified_gmt":"2025-03-23T23:48:28","slug":"%e3%80%90%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%e3%80%91c-vector%e3%81%a7%e8%a6%81%e7%b4%a0%e3%82%92%e6%a4%9c%e7%b4%a2%e3%81%99%e3%82%8b7%e3%81%a4%e3%81%ae%e5%ae%9f%e8%b7%b5%e7%9a%84%e3%81%aa","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=2191","title":{"rendered":"\u3010\u5b8c\u5168\u30ac\u30a4\u30c9\u3011C++ vector\u3067\u8981\u7d20\u3092\u691c\u7d22\u3059\u308b7\u3064\u306e\u5b9f\u8df5\u7684\u306a\u65b9\u6cd5\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">C++ vector\u3067\u306e\u8981\u7d20\u691c\u7d22\u306e\u57fa\u790e\u77e5\u8b58<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">vector\u30af\u30e9\u30b9\u306e\u691c\u7d22\u6a5f\u80fd\u306e\u5168\u4f53\u50cf<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">\u691c\u7d22\u65b9\u6cd5\u306e\u9078\u629e\u304c\u91cd\u8981\u306a\u7406\u7531<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">\u6a19\u6e96\u7684\u306a\u691c\u7d22\u65b9\u6cd5\u3068\u305d\u306e\u7279\u5fb4<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">std::find\u3067\u5b9f\u73fe\u3059\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u691c\u7d22<\/a>      <\/li>      <li>        <a href=\"#i-5\">for\u6587\u306b\u3088\u308b\u5f93\u6765\u306e\u691c\u7d22\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-6\">\u7bc4\u56f2\u30d9\u30fc\u30b9for\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u305f\u73fe\u4ee3\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-7\">\u9ad8\u5ea6\u306a\u691c\u7d22\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-8\">find_if\u3092\u4f7f\u7528\u3057\u305f\u6761\u4ef6\u4ed8\u304d\u691c\u7d22<\/a>      <\/li>      <li>        <a href=\"#i-9\">\u30d0\u30a4\u30ca\u30ea\u30b5\u30fc\u30c1\u306b\u3088\u308b\u9ad8\u901f\u5316<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-10\">\u4e26\u5217\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u6d3b\u7528\u3057\u305f\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u306e\u691c\u7d22<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-11\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30dd\u30a4\u30f3\u30c8<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-12\">\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u306b\u3088\u308b\u6700\u9069\u306a\u624b\u6cd5\u306e\u9078\u629e<\/a>      <\/li>      <li>        <a href=\"#i-13\">\u30e1\u30e2\u30ea\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u8003\u616e\u3057\u305f\u5b9f\u88c5\u306e\u30b3\u30c4<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-14\">\u3088\u304f\u3042\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u4f4e\u4e0b\u306e\u7f60\u3068\u5bfe\u7b56<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-15\">\u5b9f\u8df5\u7684\u306a\u5b9f\u88c5\u4f8b\u3068\u4f7f\u7528\u4e0a\u306e\u6ce8\u610f\u70b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-16\">\u578b\u5b89\u5168\u306a\u691c\u7d22\u51e6\u7406\u306e\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-17\">\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-18\">\u30c7\u30d0\u30c3\u30b0\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">C++ vector\u3067\u306e\u8981\u7d20\u691c\u7d22\u306e\u57fa\u790e\u77e5\u8b58<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">vector\u30af\u30e9\u30b9\u306e\u691c\u7d22\u6a5f\u80fd\u306e\u5168\u4f53\u50cf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C++\u306evector\u30af\u30e9\u30b9\u306f\u3001\u52d5\u7684\u914d\u5217\u3092\u5b9f\u73fe\u3059\u308b\u6a19\u6e96\u30b3\u30f3\u30c6\u30ca\u306e\u4e00\u3064\u3067\u3059\u3002\u8981\u7d20\u306e\u691c\u7d22\u306b\u304a\u3044\u3066\u306f\u3001\u69d8\u3005\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u53ef\u80fd\u3067\u3042\u308a\u3001\u4e3b\u306b\u4ee5\u4e0b\u306e\u65b9\u6cd5\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u95a2\u6570\u306b\u3088\u308b\u691c\u7d22<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>std::find<\/code>: \u5024\u306b\u3088\u308b\u691c\u7d22<\/li>\n\n\n\n<li><code>std::find_if<\/code>: \u6761\u4ef6\u306b\u3088\u308b\u691c\u7d22<\/li>\n\n\n\n<li><code>std::binary_search<\/code>: \u30bd\u30fc\u30c8\u6e08\u307f\u30c7\u30fc\u30bf\u3067\u306e\u4e8c\u5206\u63a2\u7d22<\/li>\n\n\n\n<li><code>std::lower_bound<\/code>\/<code>upper_bound<\/code>: \u5883\u754c\u5024\u306e\u691c\u7d22<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u305f\u624b\u52d5\u691c\u7d22<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f93\u6765\u306efor\u6587\u306b\u3088\u308b\u691c\u7d22<\/li>\n\n\n\n<li>\u7bc4\u56f2\u30d9\u30fc\u30b9for\u30eb\u30fc\u30d7\u306b\u3088\u308b\u691c\u7d22<\/li>\n\n\n\n<li>\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u76f4\u63a5\u64cd\u4f5c<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u672c\u7684\u306a\u691c\u7d22\u306e\u5b9f\u88c5\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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;vector&gt;\n#include &lt;algorithm&gt;\n#include &lt;iostream&gt;\n\nint main() {\n    \/\/ \u30d9\u30af\u30bf\u30fc\u306e\u521d\u671f\u5316\n    std::vector&lt;int&gt; numbers = {1, 3, 5, 7, 9, 11, 13};\n\n    \/\/ std::find\u3092\u4f7f\u7528\u3057\u305f\u691c\u7d22\n    auto it = std::find(numbers.begin(), numbers.end(), 7);\n\n    if (it != numbers.end()) {\n        std::cout &lt;&lt; \"\u8981\u7d20 7 \u306f\u4f4d\u7f6e \" &lt;&lt; std::distance(numbers.begin(), it) \n                  &lt;&lt; \" \u3067\u898b\u3064\u304b\u308a\u307e\u3057\u305f\" &lt;&lt; std::endl;\n    }\n\n    \/\/ \u6761\u4ef6\u306b\u3088\u308b\u691c\u7d22\uff08find_if\uff09\n    auto it2 = std::find_if(numbers.begin(), numbers.end(), \n                           [](int n) { return n &gt; 10; });\n\n    if (it2 != numbers.end()) {\n        std::cout &lt;&lt; \"10\u3088\u308a\u5927\u304d\u3044\u6700\u521d\u306e\u8981\u7d20: \" &lt;&lt; *it2 &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u691c\u7d22\u65b9\u6cd5\u306e\u9078\u629e\u304c\u91cd\u8981\u306a\u7406\u7531<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9069\u5207\u306a\u691c\u7d22\u65b9\u6cd5\u306e\u9078\u629e\u306f\u3001\u4ee5\u4e0b\u306e\u89b3\u70b9\u304b\u3089\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u306b\u3088\u308b\u5b9f\u884c\u6642\u9593\u306e\u9055\u3044<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387\u306e\u8003\u616e<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. \u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u610f\u56f3\u304c\u660e\u78ba\u306a\u5b9f\u88c5\u306e\u9078\u629e<\/li>\n\n\n\n<li>\u5c06\u6765\u306e\u62e1\u5f35\u6027\u3078\u306e\u914d\u616e<\/li>\n\n\n\n<li>\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306e\u7406\u89e3\u306e\u3057\u3084\u3059\u3055<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. \u30a8\u30e9\u30fc\u51e6\u7406\u306e\u78ba\u5b9f\u6027<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8981\u7d20\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306e\u9069\u5207\u306a\u51e6\u7406<\/li>\n\n\n\n<li>\u5883\u754c\u6761\u4ef6\u306e\u6271\u3044<\/li>\n\n\n\n<li>\u4f8b\u5916\u5b89\u5168\u6027\u306e\u78ba\u4fdd<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u691c\u7d22\u65b9\u6cd5\u306e\u9078\u629e\u57fa\u6e96\uff1a<\/p>\n\n\n<div id=\"id-85c8d6e8-1338-41b3-8015-4ad5f72e1218\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u72b6\u6cc1<\/th><th>\u63a8\u5968\u3055\u308c\u308b\u65b9\u6cd5<\/th><th>\u7406\u7531<\/th><\/tr><\/thead><tbody><tr><td>\u5358\u7d14\u306a\u5024\u306e\u691c\u7d22<\/td><td>std::find<\/td><td>\u30b7\u30f3\u30d7\u30eb\u3067\u53ef\u8aad\u6027\u304c\u9ad8\u3044<\/td><\/tr><tr><td>\u8907\u96d1\u306a\u6761\u4ef6\u3067\u306e\u691c\u7d22<\/td><td>std::find_if<\/td><td>\u30ab\u30b9\u30bf\u30e0\u6761\u4ef6\u3092\u67d4\u8edf\u306b\u6307\u5b9a\u53ef\u80fd<\/td><\/tr><tr><td>\u30bd\u30fc\u30c8\u6e08\u307f\u30c7\u30fc\u30bf<\/td><td>std::binary_search<\/td><td>\u52b9\u7387\u7684\u306aO(log n)\u306e\u63a2\u7d22\u304c\u53ef\u80fd<\/td><\/tr><tr><td>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30af\u30ea\u30c6\u30a3\u30ab\u30eb<\/td><td>\u624b\u52d5\u5b9f\u88c5<\/td><td>\u7279\u5b9a\u306e\u8981\u4ef6\u306b\u6700\u9069\u5316\u53ef\u80fd<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u691c\u7d22\u524d\u306b\u30c7\u30fc\u30bf\u306e\u7279\u6027\uff08\u30bd\u30fc\u30c8\u6e08\u307f\u304b\u5426\u304b\u3001\u91cd\u8907\u306e\u6709\u7121\u306a\u3069\uff09\u3092\u78ba\u8a8d<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8981\u4ef6\u3092\u660e\u78ba\u306b\u3059\u308b<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30b1\u30fc\u30b9\u306e\u51e6\u7406\u65b9\u91dd\u3092\u6c7a\u5b9a<\/li>\n\n\n\n<li>\u5c06\u6765\u306e\u4fdd\u5b88\u6027\u3092\u8003\u616e<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u57fa\u790e\u77e5\u8b58\u3092\u8e0f\u307e\u3048\u305f\u4e0a\u3067\u3001\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u691c\u7d22\u51e6\u7406\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">\u6a19\u6e96\u7684\u306a\u691c\u7d22\u65b9\u6cd5\u3068\u305d\u306e\u7279\u5fb4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">std::find\u3067\u5b9f\u73fe\u3059\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u691c\u7d22<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">std::find\u306f\u3001vector\u3067\u306e\u8981\u7d20\u691c\u7d22\u306b\u304a\u3044\u3066\u6700\u3082\u57fa\u672c\u7684\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u308b\u65b9\u6cd5\u3067\u3059\u3002\u30b7\u30f3\u30d7\u30eb\u306a\u5b9f\u88c5\u3068\u660e\u78ba\u306a\u610f\u56f3\u8868\u73fe\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;vector&gt;\n#include &lt;algorithm&gt;\n#include &lt;iostream&gt;\n\nvoid demonstrate_std_find() {\n    \/\/ \u30b5\u30f3\u30d7\u30eb\u30c7\u30fc\u30bf\u306e\u6e96\u5099\n    std::vector&lt;int&gt; numbers = {10, 20, 30, 40, 50};\n\n    \/\/ \u8981\u7d20\u306e\u691c\u7d22\n    auto it = std::find(numbers.begin(), numbers.end(), 30);\n\n    \/\/ \u691c\u7d22\u7d50\u679c\u306e\u78ba\u8a8d\u3068\u51e6\u7406\n    if (it != numbers.end()) {\n        size_t position = std::distance(numbers.begin(), it);\n        std::cout &lt;&lt; \"\u8981\u7d20\u304c\u4f4d\u7f6e \" &lt;&lt; position &lt;&lt; \" \u3067\u898b\u3064\u304b\u308a\u307e\u3057\u305f\" &lt;&lt; std::endl;\n    } else {\n        std::cout &lt;&lt; \"\u8981\u7d20\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f\" &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5229\u70b9:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>STL\u306e\u6a19\u6e96\u6a5f\u80fd\u3068\u3057\u3066\u5e83\u304f\u30b5\u30dd\u30fc\u30c8<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u304c\u660e\u78ba<\/li>\n\n\n\n<li>\u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u8fd4\u3059\u305f\u3081\u67d4\u8edf\u306a\u5f8c\u51e6\u7406\u304c\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">for\u6587\u306b\u3088\u308b\u5f93\u6765\u306e\u691c\u7d22\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f93\u6765\u306efor\u6587\u3092\u4f7f\u7528\u3057\u305f\u691c\u7d22\u306f\u3001\u7d30\u304b\u3044\u5236\u5fa1\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u6709\u7528\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;vector&gt;\n#include &lt;iostream&gt;\n\nvoid traditional_for_search() {\n    std::vector&lt;int&gt; numbers = {10, 20, 30, 40, 50};\n    int target = 30;\n    int found_index = -1;\n\n    \/\/ \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30d9\u30fc\u30b9\u306e\u691c\u7d22\n    for (size_t i = 0; i &lt; numbers.size(); ++i) {\n        if (numbers[i] == target) {\n            found_index = i;\n            break;  \/\/ \u8981\u7d20\u304c\u898b\u3064\u304b\u3063\u305f\u3089\u5373\u5ea7\u306b\u7d42\u4e86\n        }\n    }\n\n    \/\/ \u7d50\u679c\u306e\u51e6\u7406\n    if (found_index != -1) {\n        std::cout &lt;&lt; \"\u8981\u7d20\u304c\u4f4d\u7f6e \" &lt;&lt; found_index &lt;&lt; \" \u3067\u898b\u3064\u304b\u308a\u307e\u3057\u305f\" &lt;&lt; std::endl;\n    } else {\n        std::cout &lt;&lt; \"\u8981\u7d20\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f\" &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7279\u5fb4:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3078\u306e\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u30eb\u30fc\u30d7\u5236\u5fa1\u306e\u5b8c\u5168\u306a\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u30c7\u30d0\u30c3\u30b0\u304c\u5bb9\u6613<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u7bc4\u56f2\u30d9\u30fc\u30b9for\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u305f\u73fe\u4ee3\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C++11\u4ee5\u964d\u3067\u5c0e\u5165\u3055\u308c\u305f\u7bc4\u56f2\u30d9\u30fc\u30b9for\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u305f\u691c\u7d22\u306f\u3001\u3088\u308a\u30e2\u30c0\u30f3\u3067\u8aad\u307f\u3084\u3059\u3044\u5b9f\u88c5\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=\"\">#include &lt;vector&gt;\n#include &lt;iostream&gt;\n\nvoid range_based_for_search() {\n    std::vector&lt;int&gt; numbers = {10, 20, 30, 40, 50};\n    int target = 30;\n    bool found = false;\n    size_t index = 0;\n\n    \/\/ \u7bc4\u56f2\u30d9\u30fc\u30b9for\u30eb\u30fc\u30d7\u306b\u3088\u308b\u691c\u7d22\n    for (const auto&amp; number : numbers) {\n        if (number == target) {\n            found = true;\n            break;\n        }\n        ++index;\n    }\n\n    \/\/ \u7d50\u679c\u306e\u51e6\u7406\n    if (found) {\n        std::cout &lt;&lt; \"\u8981\u7d20\u304c\u4f4d\u7f6e \" &lt;&lt; index &lt;&lt; \" \u3067\u898b\u3064\u304b\u308a\u307e\u3057\u305f\" &lt;&lt; std::endl;\n    } else {\n        std::cout &lt;&lt; \"\u8981\u7d20\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f\" &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30e1\u30ea\u30c3\u30c8:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3088\u308a\u7c21\u6f54\u3067\u8aad\u307f\u3084\u3059\u3044\u30b3\u30fc\u30c9<\/li>\n\n\n\n<li>\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u5c11\u306a\u3044<\/li>\n\n\n\n<li>\u7bc4\u56f2\u5916\u30a2\u30af\u30bb\u30b9\u306e\u30ea\u30b9\u30af\u304c\u4f4e\u3044<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u691c\u7d22\u65b9\u6cd5\u306e\u6bd4\u8f03\u8868\uff1a<\/p>\n\n\n<div id=\"id-02f1bc44-d20a-410f-bd09-4adf5e645edc\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u691c\u7d22\u65b9\u6cd5<\/th><th>\u9069\u3057\u3066\u3044\u308b\u72b6\u6cc1<\/th><th>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/th><th>\u30b3\u30fc\u30c9\u306e\u7c21\u6f54\u3055<\/th><\/tr><\/thead><tbody><tr><td>std::find<\/td><td>\u5358\u7d14\u306a\u5024\u306e\u691c\u7d22<\/td><td>\u826f\u597d<\/td><td>\u9ad8<\/td><\/tr><tr><td>\u5f93\u6765\u306efor\u6587<\/td><td>\u30ab\u30b9\u30bf\u30e0\u5236\u5fa1\u304c\u5fc5\u8981\u306a\u5834\u5408<\/td><td>\u826f\u597d<\/td><td>\u4e2d<\/td><\/tr><tr><td>\u7bc4\u56f2\u30d9\u30fc\u30b9for<\/td><td>\u30e2\u30c0\u30f3\u306a\u5b9f\u88c5\u304c\u6c42\u3081\u3089\u308c\u308b\u5834\u5408<\/td><td>\u512a\u308c\u3066\u3044\u308b<\/td><td>\u9ad8<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u88c5\u6642\u306e\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4f8b\u5916\u5b89\u5168\u6027\u306e\u8003\u616e<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7bc4\u56f2\u30c1\u30a7\u30c3\u30af\u306e\u5b9f\u65bd<\/li>\n\n\n\n<li>\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u6709\u52b9\u6027\u78ba\u8a8d<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u7ba1\u7406\u3078\u306e\u914d\u616e<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e0d\u8981\u306a\u30b3\u30d4\u30fc\u306e\u56de\u907f<\/li>\n\n\n\n<li>\u65e9\u671f\u7d42\u4e86\u6761\u4ef6\u306e\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u30b3\u30f3\u30c6\u30ca\u30b5\u30a4\u30ba\u306e\u7ba1\u7406<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u660e\u78ba\u306a\u5909\u6570\u540d\u306e\u4f7f\u7528<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u30b3\u30e1\u30f3\u30c8\u306e\u8ffd\u52a0<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u660e\u793a\u7684\u306a\u5b9f\u88c5<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u6a19\u6e96\u7684\u306a\u691c\u7d22\u65b9\u6cd5\u3092\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u9069\u5207\u306b\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-7\">\u9ad8\u5ea6\u306a\u691c\u7d22\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">find_if\u3092\u4f7f\u7528\u3057\u305f\u6761\u4ef6\u4ed8\u304d\u691c\u7d22<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">find_if\u306f\u8907\u96d1\u306a\u6761\u4ef6\u306b\u57fa\u3065\u304f\u691c\u7d22\u3092\u5b9f\u73fe\u3059\u308b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u30ab\u30b9\u30bf\u30e0\u8ff0\u8a9e\uff08predicate\uff09\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u67d4\u8edf\u306a\u691c\u7d22\u6761\u4ef6\u3092\u5b9f\u88c5\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=\"\">#include &lt;vector&gt;\n#include &lt;algorithm&gt;\n#include &lt;iostream&gt;\n\n\/\/ \u691c\u7d22\u5bfe\u8c61\u306e\u69cb\u9020\u4f53\nstruct Person {\n    std::string name;\n    int age;\n    double salary;\n\n    Person(std::string n, int a, double s) \n        : name(std::move(n)), age(a), salary(s) {}\n};\n\nvoid demonstrate_find_if() {\n    std::vector&lt;Person&gt; employees = {\n        Person(\"\u7530\u4e2d\", 30, 350000),\n        Person(\"\u9234\u6728\", 25, 280000),\n        Person(\"\u4f50\u85e4\", 35, 420000),\n        Person(\"\u5c71\u7530\", 28, 310000)\n    };\n\n    \/\/ \u6761\u4ef6: \u7d66\u4e0e\u304c35\u4e07\u5186\u4ee5\u4e0a\u306730\u6b73\u4ee5\u4e0a\u306e\u5f93\u696d\u54e1\u3092\u691c\u7d22\n    auto it = std::find_if(employees.begin(), employees.end(),\n        [](const Person&amp; p) {\n            return p.salary &gt;= 350000 &amp;&amp; p.age &gt;= 30;\n        });\n\n    if (it != employees.end()) {\n        std::cout &lt;&lt; \"\u691c\u7d22\u7d50\u679c: \" &lt;&lt; it-&gt;name \n                  &lt;&lt; \" (\u5e74\u9f62: \" &lt;&lt; it-&gt;age \n                  &lt;&lt; \", \u7d66\u4e0e: \" &lt;&lt; it-&gt;salary &lt;&lt; \")\" &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>find_if\u306e\u6d3b\u7528\u30b7\u30fc\u30f3:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8907\u6570\u6761\u4ef6\u3067\u306e\u691c\u7d22<\/li>\n\n\n\n<li>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7279\u5b9a\u5c5e\u6027\u306b\u57fa\u3065\u304f\u691c\u7d22<\/li>\n\n\n\n<li>\u52d5\u7684\u306a\u691c\u7d22\u6761\u4ef6\u306e\u5b9f\u88c5<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u30d0\u30a4\u30ca\u30ea\u30b5\u30fc\u30c1\u306b\u3088\u308b\u9ad8\u901f\u5316<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30bd\u30fc\u30c8\u6e08\u307f\u306evector\u306b\u5bfe\u3057\u3066\u306f\u3001\u4e8c\u5206\u63a2\u7d22\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u691c\u7d22\u6027\u80fd\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\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=\"\">#include &lt;vector&gt;\n#include &lt;algorithm&gt;\n#include &lt;iostream&gt;\n\nvoid demonstrate_binary_search() {\n    std::vector&lt;int&gt; sorted_numbers = {10, 20, 30, 40, 50, 60, 70, 80, 90};\n\n    \/\/ \u5024\u306e\u5b58\u5728\u78ba\u8a8d\n    if (std::binary_search(sorted_numbers.begin(), sorted_numbers.end(), 40)) {\n        \/\/ lower_bound\u3067\u4f4d\u7f6e\u3092\u7279\u5b9a\n        auto it = std::lower_bound(sorted_numbers.begin(), sorted_numbers.end(), 40);\n        std::cout &lt;&lt; \"\u8981\u7d20 40 \u306f\u4f4d\u7f6e \" \n                  &lt;&lt; std::distance(sorted_numbers.begin(), it) \n                  &lt;&lt; \" \u306b\u3042\u308a\u307e\u3059\" &lt;&lt; std::endl;\n    }\n\n    \/\/ \u7bc4\u56f2\u691c\u7d22\u306e\u4f8b\uff0830\u4ee5\u4e0a60\u4ee5\u4e0b\u306e\u8981\u7d20\u3092\u53d6\u5f97\uff09\n    auto lower = std::lower_bound(sorted_numbers.begin(), sorted_numbers.end(), 30);\n    auto upper = std::upper_bound(sorted_numbers.begin(), sorted_numbers.end(), 60);\n\n    std::cout &lt;&lt; \"30\u4ee5\u4e0a60\u4ee5\u4e0b\u306e\u8981\u7d20: \";\n    std::copy(lower, upper, \n              std::ostream_iterator&lt;int&gt;(std::cout, \" \"));\n    std::cout &lt;&lt; std::endl;\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30d0\u30a4\u30ca\u30ea\u30b5\u30fc\u30c1\u306e\u7279\u5fb4:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>O(log n)\u306e\u6642\u9593\u8907\u96d1\u5ea6<\/li>\n\n\n\n<li>\u30bd\u30fc\u30c8\u6e08\u307f\u30c7\u30fc\u30bf\u304c\u524d\u63d0<\/li>\n\n\n\n<li>\u7bc4\u56f2\u691c\u7d22\u306b\u52b9\u679c\u7684<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u4e26\u5217\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u6d3b\u7528\u3057\u305f\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u306e\u691c\u7d22<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C++17\u4ee5\u964d\u3067\u306f\u3001\u4e26\u5217\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u4f7f\u7528\u3057\u3066\u691c\u7d22\u51e6\u7406\u3092\u9ad8\u901f\u5316\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=\"\">#include &lt;vector&gt;\n#include &lt;algorithm&gt;\n#include &lt;execution&gt;\n#include &lt;chrono&gt;\n#include &lt;iostream&gt;\n\nvoid demonstrate_parallel_search() {\n    \/\/ \u5927\u898f\u6a21\u30c7\u30fc\u30bf\u306e\u6e96\u5099\n    std::vector&lt;int&gt; large_data(1000000);\n    std::iota(large_data.begin(), large_data.end(), 0);  \/\/ 0\u304b\u3089\u306e\u9023\u756a\u3067\u521d\u671f\u5316\n\n    auto start = std::chrono::high_resolution_clock::now();\n\n    \/\/ \u4e26\u5217\u691c\u7d22\u306e\u5b9f\u884c\n    auto it = std::find_if(std::execution::par,\n                          large_data.begin(), large_data.end(),\n                          [](int n) { \n                              return n &gt; 999990; \n                          });\n\n    auto end = std::chrono::high_resolution_clock::now();\n    auto duration = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;\n                   (end - start);\n\n    if (it != large_data.end()) {\n        std::cout &lt;&lt; \"\u8981\u7d20\u304c\u898b\u3064\u304b\u308a\u307e\u3057\u305f: \" &lt;&lt; *it &lt;&lt; std::endl;\n        std::cout &lt;&lt; \"\u691c\u7d22\u6642\u9593: \" &lt;&lt; duration.count() &lt;&lt; \" \u30de\u30a4\u30af\u30ed\u79d2\" &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u5ea6\u306a\u691c\u7d22\u30c6\u30af\u30cb\u30c3\u30af\u306e\u6bd4\u8f03\uff1a<\/p>\n\n\n<div id=\"id-120da9b9-1a66-4971-bd41-b2935546939a\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30c6\u30af\u30cb\u30c3\u30af<\/th><th>\u6642\u9593\u8907\u96d1\u5ea6<\/th><th>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf<\/th><th>\u9069\u7528\u6761\u4ef6<\/th><\/tr><\/thead><tbody><tr><td>find_if<\/td><td>O(n)<\/td><td>O(1)<\/td><td>\u4efb\u610f\u306e\u6761\u4ef6<\/td><\/tr><tr><td>\u30d0\u30a4\u30ca\u30ea\u30b5\u30fc\u30c1<\/td><td>O(log n)<\/td><td>O(1)<\/td><td>\u30bd\u30fc\u30c8\u6e08\u307f\u30c7\u30fc\u30bf<\/td><\/tr><tr><td>\u4e26\u5217\u691c\u7d22<\/td><td>O(n\/p)*<\/td><td>O(1)<\/td><td>\u5927\u898f\u6a21\u30c7\u30fc\u30bf<\/td><\/tr><tr><td>*p \u306f\u30d7\u30ed\u30bb\u30c3\u30b5\u6570<\/td><td><\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u88c5\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u9078\u629e\u57fa\u6e96<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u3068\u69cb\u9020<\/li>\n\n\n\n<li>\u30bd\u30fc\u30c8\u72b6\u614b<\/li>\n\n\n\n<li>\u691c\u7d22\u983b\u5ea6<\/li>\n\n\n\n<li>\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30ea\u30bd\u30fc\u30b9<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387\u306e\u8003\u616e<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3<\/li>\n\n\n\n<li>\u30b9\u30ec\u30c3\u30c9\u5b89\u5168\u6027\u306e\u78ba\u4fdd<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b9f\u88c5\u6642\u306e\u6ce8\u610f\u70b9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5883\u754c\u6761\u4ef6\u306e\u51e6\u7406<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/li>\n\n\n\n<li>\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u9ad8\u5ea6\u306a\u691c\u7d22\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u67d4\u8edf\u306a\u691c\u7d22\u51e6\u7406\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-11\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u306b\u3088\u308b\u6700\u9069\u306a\u624b\u6cd5\u306e\u9078\u629e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">vector\u306e\u691c\u7d22\u306b\u304a\u3044\u3066\u306f\u3001\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u624b\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u30b5\u30a4\u30ba\u5225\u306e\u6700\u9069\u5316\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;vector&gt;\n#include &lt;algorithm&gt;\n#include &lt;chrono&gt;\n#include &lt;iostream&gt;\n#include &lt;random&gt;\n\nclass SearchPerformanceTester {\npublic:\n    \/\/ \u7570\u306a\u308b\u30b5\u30a4\u30ba\u306e\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3067\u306e\u691c\u7d22\u6027\u80fd\u3092\u6e2c\u5b9a\n    static void benchmark_search_methods() {\n        std::vector&lt;size_t&gt; sizes = {100, 1000, 10000, 100000};\n\n        for (size_t size : sizes) {\n            std::vector&lt;int&gt; data = generate_test_data(size);\n            std::vector&lt;int&gt; sorted_data = data;\n            std::sort(sorted_data.begin(), sorted_data.end());\n\n            std::cout &lt;&lt; \"\\n\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba: \" &lt;&lt; size &lt;&lt; std::endl;\n\n            \/\/ \u7dda\u5f62\u691c\u7d22\n            measure_linear_search(data);\n\n            \/\/ \u30d0\u30a4\u30ca\u30ea\u30b5\u30fc\u30c1\n            measure_binary_search(sorted_data);\n\n            \/\/ \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30d9\u30fc\u30b9\u306e\u30a2\u30af\u30bb\u30b9\uff08\u30cf\u30c3\u30b7\u30e5\u30de\u30c3\u30d7\u306e\u6a21\u5023\uff09\n            measure_indexed_access(data);\n        }\n    }\n\nprivate:\n    static std::vector&lt;int&gt; generate_test_data(size_t size) {\n        std::vector&lt;int&gt; data(size);\n        std::random_device rd;\n        std::mt19937 gen(rd());\n        std::uniform_int_distribution&lt;&gt; dis(1, 1000000);\n\n        for (size_t i = 0; i &lt; size; ++i) {\n            data[i] = dis(gen);\n        }\n        return data;\n    }\n\n    static void measure_linear_search(const std::vector&lt;int&gt;&amp; data) {\n        auto start = std::chrono::high_resolution_clock::now();\n\n        int target = data[data.size() \/ 2];  \/\/ \u4e2d\u592e\u5024\u3092\u691c\u7d22\n        auto it = std::find(data.begin(), data.end(), target);\n\n        auto end = std::chrono::high_resolution_clock::now();\n        auto duration = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(end - start);\n\n        std::cout &lt;&lt; \"\u7dda\u5f62\u691c\u7d22\u6642\u9593: \" &lt;&lt; duration.count() &lt;&lt; \"\u03bcs\" &lt;&lt; std::endl;\n    }\n\n    static void measure_binary_search(const std::vector&lt;int&gt;&amp; sorted_data) {\n        auto start = std::chrono::high_resolution_clock::now();\n\n        int target = sorted_data[sorted_data.size() \/ 2];\n        auto it = std::lower_bound(sorted_data.begin(), sorted_data.end(), target);\n\n        auto end = std::chrono::high_resolution_clock::now();\n        auto duration = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(end - start);\n\n        std::cout &lt;&lt; \"\u30d0\u30a4\u30ca\u30ea\u30b5\u30fc\u30c1\u6642\u9593: \" &lt;&lt; duration.count() &lt;&lt; \"\u03bcs\" &lt;&lt; std::endl;\n    }\n\n    static void measure_indexed_access(const std::vector&lt;int&gt;&amp; data) {\n        \/\/ \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30de\u30c3\u30d7\u306e\u69cb\u7bc9\n        std::unordered_map&lt;int, size_t&gt; index_map;\n        for (size_t i = 0; i &lt; data.size(); ++i) {\n            index_map[data[i]] = i;\n        }\n\n        auto start = std::chrono::high_resolution_clock::now();\n\n        int target = data[data.size() \/ 2];\n        auto it = index_map.find(target);\n\n        auto end = std::chrono::high_resolution_clock::now();\n        auto duration = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(end - start);\n\n        std::cout &lt;&lt; \"\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30a2\u30af\u30bb\u30b9\u6642\u9593: \" &lt;&lt; duration.count() &lt;&lt; \"\u03bcs\" &lt;&lt; std::endl;\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u30e1\u30e2\u30ea\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u8003\u616e\u3057\u305f\u5b9f\u88c5\u306e\u30b3\u30c4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u306e\u6700\u9069\u5316\u306f\u3001\u691c\u7d22\u6027\u80fd\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;vector&gt;\n#include &lt;memory&gt;\n#include &lt;algorithm&gt;\n\nclass MemoryOptimizedSearch {\npublic:\n    \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u306a\u5b9f\u88c5\n    template&lt;typename T&gt;\n    static size_t cache_friendly_search(const std::vector&lt;T&gt;&amp; data, const T&amp; target) {\n        \/\/ \u30c7\u30fc\u30bf\u3092\u9023\u7d9a\u3057\u305f\u30e1\u30e2\u30ea\u9818\u57df\u306b\u30d7\u30ea\u30d5\u30a7\u30c3\u30c1\n        const size_t block_size = 64 \/ sizeof(T);  \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u30b5\u30a4\u30ba\u306b\u57fa\u3065\u304f\n        std::vector&lt;T&gt; cache_block;\n        cache_block.reserve(block_size);\n\n        for (size_t i = 0; i &lt; data.size(); i += block_size) {\n            size_t end = std::min(i + block_size, data.size());\n            cache_block.assign(data.begin() + i, data.begin() + end);\n\n            for (size_t j = 0; j &lt; cache_block.size(); ++j) {\n                if (cache_block[j] == target) {\n                    return i + j;\n                }\n            }\n        }\n        return data.size();\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u3088\u304f\u3042\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u4f4e\u4e0b\u306e\u7f60\u3068\u5bfe\u7b56<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u969b\u306b\u3088\u304f\u906d\u9047\u3059\u308b\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u7b56\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;vector&gt;\n#include &lt;algorithm&gt;\n\nclass PerformanceOptimization {\npublic:\n    \/\/ \u554f\u984c1: \u4e0d\u8981\u306a\u30b3\u30d4\u30fc\u306e\u56de\u907f\n    template&lt;typename T&gt;\n    static auto find_without_copy(std::vector&lt;T&gt;&amp; data, const T&amp; target) {\n        \/\/ \u53c2\u7167\u3092\u4f7f\u7528\u3057\u3066\u4e0d\u8981\u306a\u30b3\u30d4\u30fc\u3092\u56de\u907f\n        return std::find_if(data.begin(), data.end(),\n            [&amp;target](const T&amp; element) {  \/\/ const\u53c2\u7167\u3092\u4f7f\u7528\n                return element == target;\n            });\n    }\n\n    \/\/ \u554f\u984c2: \u4e0d\u9069\u5207\u306a\u30ea\u30b5\u30a4\u30ba\u306e\u56de\u907f\n    template&lt;typename T&gt;\n    static void efficient_vector_growth(std::vector&lt;T&gt;&amp; data) {\n        \/\/ \u4e8b\u524d\u306b\u30e1\u30e2\u30ea\u3092\u78ba\u4fdd\n        data.reserve(data.size() * 2);\n\n        \/\/ \u52b9\u7387\u7684\u306a\u8ffd\u52a0\u51e6\u7406\n        for (size_t i = 0; i &lt; data.size(); ++i) {\n            data.push_back(data[i]);\n        }\n    }\n};<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u91cd\u8981\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n<div id=\"id-f8ada294-0a0c-4c86-99de-95c1b80d2a6a\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6700\u9069\u5316\u9805\u76ee<\/th><th>\u52b9\u679c<\/th><th>\u9069\u7528\u6761\u4ef6<\/th><\/tr><\/thead><tbody><tr><td>\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u9078\u629e<\/td><td>\u691c\u7d22\u6642\u9593\u306e\u77ed\u7e2e<\/td><td>\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u3068\u691c\u7d22\u30d1\u30bf\u30fc\u30f3\u306b\u4f9d\u5b58<\/td><\/tr><tr><td>\u30e1\u30e2\u30ea\u30ec\u30a4\u30a2\u30a6\u30c8<\/td><td>\u30ad\u30e3\u30c3\u30b7\u30e5\u30d2\u30c3\u30c8\u7387\u5411\u4e0a<\/td><td>\u9023\u7d9a\u3057\u305f\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u304c\u91cd\u8981\u306a\u5834\u5408<\/td><\/tr><tr><td>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u9078\u629e<\/td><td>\u8a08\u7b97\u91cf\u306e\u524a\u6e1b<\/td><td>\u30c7\u30fc\u30bf\u306e\u7279\u6027\u306b\u5fdc\u3058\u3066<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u6700\u9069\u5316\u306e\u5b9f\u65bd\u624b\u9806\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u73fe\u72b6\u306e\u6027\u80fd\u6e2c\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d9\u30fc\u30b9\u30e9\u30a4\u30f3\u306e\u78ba\u7acb<\/li>\n\n\n\n<li>\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306e\u7279\u5b9a<\/li>\n\n\n\n<li>\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u306e\u5b9f\u65bd<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6700\u9069\u5316\u6226\u7565\u306e\u9078\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u898b\u76f4\u3057<\/li>\n\n\n\n<li>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u6539\u5584<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u306e\u6700\u9069\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b9f\u88c5\u3068\u691c\u8a3c<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bb5\u968e\u7684\u306a\u6539\u5584<\/li>\n\n\n\n<li>\u7d99\u7d9a\u7684\u306a\u6e2c\u5b9a<\/li>\n\n\n\n<li>\u56de\u5e30\u30c6\u30b9\u30c8\u306e\u5b9f\u65bd<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u52b9\u679c\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u305f\u3081\u306b\u3001\u3053\u308c\u3089\u306e\u8981\u7d20\u3092\u7dcf\u5408\u7684\u306b\u8003\u616e\u3057\u3001\u9069\u5207\u306a\u624b\u6cd5\u3092\u9078\u629e\u30fb\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-15\">\u5b9f\u8df5\u7684\u306a\u5b9f\u88c5\u4f8b\u3068\u4f7f\u7528\u4e0a\u306e\u6ce8\u610f\u70b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u578b\u5b89\u5168\u306a\u691c\u7d22\u51e6\u7406\u306e\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u578b\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3057\u3064\u3064\u3001\u67d4\u8edf\u3067\u518d\u5229\u7528\u53ef\u80fd\u306a\u691c\u7d22\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;vector&gt;\n#include &lt;optional&gt;\n#include &lt;stdexcept&gt;\n#include &lt;type_traits&gt;\n#include &lt;iostream&gt;\n\n\/\/ \u6c4e\u7528\u7684\u306a\u691c\u7d22\u30af\u30e9\u30b9\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\ntemplate&lt;typename T&gt;\nclass SafeVectorSearch {\npublic:\n    \/\/ \u578b\u30c1\u30a7\u30c3\u30af\u7528\u306e\u5236\u7d04\n    static_assert(std::is_default_constructible_v&lt;T&gt;, \n                 \"Type must be default constructible\");\n    static_assert(std::is_copy_constructible_v&lt;T&gt;, \n                 \"Type must be copy constructible\");\n\n    explicit SafeVectorSearch(std::vector&lt;T&gt;&amp; data) \n        : data_(data) {}\n\n    \/\/ \u5b89\u5168\u306a\u691c\u7d22\u30e1\u30bd\u30c3\u30c9\n    std::optional&lt;size_t&gt; find_element(const T&amp; target) const noexcept {\n        try {\n            auto it = std::find(data_.begin(), data_.end(), target);\n            if (it != data_.end()) {\n                return std::distance(data_.begin(), it);\n            }\n            return std::nullopt;\n        } catch (...) {\n            return std::nullopt;\n        }\n    }\n\n    \/\/ \u6761\u4ef6\u4ed8\u304d\u691c\u7d22\n    template&lt;typename Predicate&gt;\n    std::optional&lt;size_t&gt; find_if_element(Predicate pred) const noexcept {\n        try {\n            auto it = std::find_if(data_.begin(), data_.end(), pred);\n            if (it != data_.end()) {\n                return std::distance(data_.begin(), it);\n            }\n            return std::nullopt;\n        } catch (...) {\n            return std::nullopt;\n        }\n    }\n\n    \/\/ \u7bc4\u56f2\u30c1\u30a7\u30c3\u30af\u4ed8\u304d\u306e\u8981\u7d20\u30a2\u30af\u30bb\u30b9\n    std::optional&lt;std::reference_wrapper&lt;const T&gt;&gt; \n    get_element(size_t index) const noexcept {\n        if (index &lt; data_.size()) {\n            return std::cref(data_[index]);\n        }\n        return std::nullopt;\n    }\n\nprivate:\n    std::vector&lt;T&gt;&amp; data_;\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid demonstrate_safe_search() {\n    std::vector&lt;int&gt; numbers = {1, 2, 3, 4, 5};\n    SafeVectorSearch&lt;int&gt; searcher(numbers);\n\n    \/\/ \u8981\u7d20\u306e\u691c\u7d22\n    if (auto pos = searcher.find_element(3)) {\n        std::cout &lt;&lt; \"\u8981\u7d203\u306f\u4f4d\u7f6e \" &lt;&lt; *pos &lt;&lt; \" \u306b\u3042\u308a\u307e\u3059\" &lt;&lt; std::endl;\n    }\n\n    \/\/ \u6761\u4ef6\u4ed8\u304d\u691c\u7d22\n    auto even_pos = searcher.find_if_element([](int n) { return n % 2 == 0; });\n    if (even_pos) {\n        std::cout &lt;&lt; \"\u6700\u521d\u306e\u5076\u6570\u306f\u4f4d\u7f6e \" &lt;&lt; *even_pos &lt;&lt; \" \u306b\u3042\u308a\u307e\u3059\" &lt;&lt; std::endl;\n    }\n\n    \/\/ \u5b89\u5168\u306a\u8981\u7d20\u30a2\u30af\u30bb\u30b9\n    if (auto elem = searcher.get_element(2)) {\n        std::cout &lt;&lt; \"\u4f4d\u7f6e2\u306e\u8981\u7d20: \" &lt;&lt; elem-&gt;get() &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u691c\u7d22\u51e6\u7406\u306b\u304a\u3051\u308b\u30a8\u30e9\u30fc\u51e6\u7406\u3068\u4f8b\u5916\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;vector&gt;\n#include &lt;stdexcept&gt;\n#include &lt;string&gt;\n#include &lt;iostream&gt;\n\nclass SearchException : public std::runtime_error {\npublic:\n    explicit SearchException(const std::string&amp; message) \n        : std::runtime_error(message) {}\n};\n\ntemplate&lt;typename T&gt;\nclass RobustVectorSearch {\npublic:\n    \/\/ \u4f8b\u5916\u5b89\u5168\u306a\u691c\u7d22\u30e1\u30bd\u30c3\u30c9\n    static T find_with_validation(const std::vector&lt;T&gt;&amp; data, \n                                const T&amp; target,\n                                const std::string&amp; context = \"\") {\n        \/\/ \u524d\u63d0\u6761\u4ef6\u306e\u30c1\u30a7\u30c3\u30af\n        if (data.empty()) {\n            throw SearchException(\"Empty vector in \" + context);\n        }\n\n        try {\n            auto it = std::find(data.begin(), data.end(), target);\n            if (it == data.end()) {\n                throw SearchException(\"Element not found in \" + context);\n            }\n            return *it;\n        } catch (const std::bad_alloc&amp; e) {\n            throw SearchException(\"Memory allocation failed: \" + \n                                std::string(e.what()));\n        } catch (const std::exception&amp; e) {\n            throw SearchException(\"Unexpected error: \" + \n                                std::string(e.what()));\n        }\n    }\n\n    \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7684\u306a\u691c\u7d22\u64cd\u4f5c\n    static bool find_and_modify(std::vector&lt;T&gt;&amp; data, \n                              const T&amp; target,\n                              std::function&lt;void(T&amp;)&gt; modifier) {\n        auto it = std::find(data.begin(), data.end(), target);\n        if (it == data.end()) {\n            return false;\n        }\n\n        try {\n            modifier(*it);\n            return true;\n        } catch (...) {\n            \/\/ \u4fee\u6b63\u64cd\u4f5c\u304c\u5931\u6557\u3057\u305f\u5834\u5408\u3001\u5143\u306e\u72b6\u614b\u3092\u7dad\u6301\n            return false;\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u30c7\u30d0\u30c3\u30b0\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u52b9\u679c\u7684\u306a\u30c7\u30d0\u30c3\u30b0\u3068\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u305f\u3081\u306e\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;vector&gt;\n#include &lt;iostream&gt;\n#include &lt;sstream&gt;\n\ntemplate&lt;typename T&gt;\nclass DebugableSearch {\npublic:\n    static void debug_search_process(const std::vector&lt;T&gt;&amp; data,\n                                   const T&amp; target,\n                                   bool verbose = false) {\n        std::cout &lt;&lt; \"=== \u691c\u7d22\u30d7\u30ed\u30bb\u30b9\u306e\u958b\u59cb ===\" &lt;&lt; std::endl;\n        std::cout &lt;&lt; \"\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba: \" &lt;&lt; data.size() &lt;&lt; std::endl;\n        std::cout &lt;&lt; \"\u691c\u7d22\u5bfe\u8c61: \" &lt;&lt; target &lt;&lt; std::endl;\n\n        if (verbose) {\n            print_vector_state(data);\n        }\n\n        size_t comparisons = 0;\n        auto it = std::find_if(data.begin(), data.end(),\n            [&amp;](const T&amp; element) {\n                ++comparisons;\n                if (verbose) {\n                    std::cout &lt;&lt; \"\u6bd4\u8f03 #\" &lt;&lt; comparisons &lt;&lt; \": \" \n                             &lt;&lt; element &lt;&lt; \" vs \" &lt;&lt; target &lt;&lt; std::endl;\n                }\n                return element == target;\n            });\n\n        if (it != data.end()) {\n            std::cout &lt;&lt; \"\u8981\u7d20\u304c\u898b\u3064\u304b\u308a\u307e\u3057\u305f\u3002\u4f4d\u7f6e: \" \n                      &lt;&lt; std::distance(data.begin(), it) &lt;&lt; std::endl;\n        } else {\n            std::cout &lt;&lt; \"\u8981\u7d20\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\" &lt;&lt; std::endl;\n        }\n\n        std::cout &lt;&lt; \"\u6bd4\u8f03\u56de\u6570: \" &lt;&lt; comparisons &lt;&lt; std::endl;\n        std::cout &lt;&lt; \"=== \u691c\u7d22\u30d7\u30ed\u30bb\u30b9\u306e\u7d42\u4e86 ===\" &lt;&lt; std::endl;\n    }\n\nprivate:\n    static void print_vector_state(const std::vector&lt;T&gt;&amp; data) {\n        std::cout &lt;&lt; \"\u30d9\u30af\u30bf\u30fc\u306e\u73fe\u5728\u306e\u72b6\u614b: \";\n        for (const auto&amp; element : data) {\n            std::cout &lt;&lt; element &lt;&lt; \" \";\n        }\n        std::cout &lt;&lt; std::endl;\n    }\n};<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u88c5\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n<div id=\"id-a1474228-9a12-481c-8adc-d8874afc0d11\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u89b3\u70b9<\/th><th>\u91cd\u8981\u4e8b\u9805<\/th><th>\u5b9f\u88c5\u65b9\u6cd5<\/th><\/tr><\/thead><tbody><tr><td>\u578b\u5b89\u5168\u6027<\/td><td>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u30c1\u30a7\u30c3\u30af<\/td><td>static_assert, \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u5236\u7d04<\/td><\/tr><tr><td>\u30a8\u30e9\u30fc\u51e6\u7406<\/td><td>\u4f8b\u5916\u5b89\u5168\u6027\u306e\u78ba\u4fdd<\/td><td>try-catch, RAII<\/td><\/tr><tr><td>\u30c7\u30d0\u30c3\u30b0<\/td><td>\u30c8\u30ec\u30fc\u30b9\u53ef\u80fd\u6027<\/td><td>\u30ed\u30b0\u51fa\u529b\u3001\u72b6\u614b\u78ba\u8a8d<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u88c5\u6642\u306e\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u54c1\u8cea\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5358\u4f53\u30c6\u30b9\u30c8\u306e\u4f5c\u6210<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u306e\u5b9f\u65bd<\/li>\n\n\n\n<li>\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u306e\u6d3b\u7528<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u660e\u78ba\u306a\u547d\u540d\u898f\u5247<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u30b3\u30e1\u30f3\u30c8<\/li>\n\n\n\n<li>\u30e2\u30b8\u30e5\u30fc\u30eb\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u5bb9\u6613\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ed\u30b0\u51fa\u529b\u306e\u6574\u5099<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u5145\u5b9f<\/li>\n\n\n\n<li>\u30c8\u30ec\u30fc\u30b9\u6a5f\u80fd\u306e\u5b9f\u88c5<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u5b9f\u8df5\u7684\u306a\u5b9f\u88c5\u4f8b\u3068\u6ce8\u610f\u70b9\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u691c\u7d22\u6a5f\u80fd\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-2191","post","type-post","status-publish","format-standard","category-cpp","nothumb"],"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2191","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=2191"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2191\/revisions"}],"predecessor-version":[{"id":2192,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2191\/revisions\/2192"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2191"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}