{"id":3241,"date":"2025-06-02T15:55:00","date_gmt":"2025-06-02T07:55:00","guid":{"rendered":"https:\/\/guapicoding.com\/?p=3241"},"modified":"2025-06-11T17:02:41","modified_gmt":"2025-06-11T09:02:41","slug":"stl-%e6%b7%b1%e5%b1%82%e5%89%96%e6%9e%90","status":"publish","type":"post","link":"https:\/\/guapicoding.com\/?p=3241","title":{"rendered":"STL \u6d45\u5c42\u5256\u6790"},"content":{"rendered":"\n<p>\u6e90\u7801\u7248\u672c\uff1a<code>SGI-STL V3.3<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">set \/ map<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5e95\u5c42\u90fd\u4e3a <strong>RB-tree<\/strong>\uff08\u5e73\u8861\u4e8c\u53c9\u641c\u7d22\u6811\uff09\uff0c\u6bcf\u4e00\u4e2a\u5143\u7d20\u90fd\u662f\u7ea2\u9ed1\u6811\u4e0a\u7684\u4e00\u4e2a\u8282\u70b9\uff0c\u6240\u6709\u5143\u7d20\u90fd\u4f1a\u6839\u636e\u952e\u503c\u81ea\u52a8\u88ab\u6392\u5e8f\uff08\u9ed8\u8ba4\u9012\u589e\uff09\u3002<\/li>\n\n\n\n<li>map \u7684\u5143\u7d20\u662f pair\uff0c\u540c\u65f6\u62e5\u6709\u952e\u503c key \u548c\u5b9e\u503c value\uff0c\u4e0d\u5141\u8bb8\u4e24\u4e2a\u5143\u7d20\u62e5\u6709\u76f8\u540c\u7684 key\uff1bset \u5143\u7d20\u7684\u952e\u503c\u5c31\u662f\u5b9e\u503c\uff0c\u4e5f\u4e0d\u5141\u8bb8\u4e24\u4e2a\u5143\u7d20\u62e5\u6709\u76f8\u540c\u7684\u952e\u503c\u3002<\/li>\n\n\n\n<li>\u67e5\u627e\u3001\u5220\u9664\u3001\u6dfb\u52a0\u7684\u65f6\u95f4\u590d\u6742\u5ea6<strong>\u7a33\u5b9a\u5728 O(logn)<\/strong>\u3002<\/li>\n\n\n\n<li>\u4e8c\u53c9\u641c\u7d22\u6811\u7684\u7279\u70b9\u662f\u5de6\u5b50\u6811\u4e0a\u6240\u6709\u8282\u70b9\u7684\u952e\u503c\u90fd\u5c0f\u4e8e\u6839\u8282\u70b9\u7684\u952e\u503c\uff0c\u53f3\u5b50\u6811\u4e0a\u6240\u6709\u8282\u70b9\u7684\u952e\u503c\u90fd\u5927\u4e8e\u6839\u8282\u70b9\u7684\u952e\u503c\uff0c\u4f7f\u7528\u4e2d\u5e8f\u904d\u5386\u53ef\u5c06\u952e\u503c\u6309\u7167\u4ece\u5c0f\u5230\u5927\u904d\u5386\u51fa\u6765\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u91cd\u70b9\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>map \u91cd\u8f7d\u4e2d\u62ec\u53f7\uff08\u6bd4\u5982\uff1a<code>mp[7] = 3<\/code>\uff09<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>_Tp&amp; operator&#91;](const key_type&amp; __k) {\n    iterator __i = lower_bound(__k);\n    \/\/ key_comp()\u4f7f\u5f97\u524d\u8005\u5fc5\u987b\u5c0f\u4e8e\u540e\u8005\uff0c\u4fdd\u8bc1\u4e86\u4e0d\u4f1a\u6709\u91cd\u590d\u7684 key\n    if (__i == end() || key_comp()(__k, (*__i).first))\n        \/\/ \u4e0b\u53e5\u7684\u9017\u53f7\u540e\u90e8\u5206\u6784\u9020\u4e86\u4e00\u4e2a\u65b0\u7684 pair \n        __i = insert(__i, value_type(__k, _Tp()));\n    return (*__i).second;\n}<\/code><\/pre>\n\n\n\n<p>\u63d2\u5165\u540e\uff0c\u8fd4\u56de <code>iterator<\/code> \u5176\u4e2d <code>.second<\/code> \u7684\u5f15\u7528\uff0c\u5373 <code>int&amp;<\/code>\uff0c\u8d4b\u503c\u4e3a 3\u3002<\/p>\n\n\n\n<p>ps\uff1a<code>lower_bound<\/code> \u8fd4\u56de\u6307\u5411\u7b2c\u4e00\u4e2a<strong>\u4e0d\u5c0f\u4e8e<\/strong>\u7ed9\u5b9a\u503c\u7684\u5143\u7d20\u7684\u8fed\u4ee3\u5668\uff0c<code>upper_bound<\/code> \u8fd4\u56de\u6307\u5411\u7b2c\u4e00\u4e2a<strong>\u5927\u4e8e<\/strong>\u7ed9\u5b9a\u503c\u7684\u5143\u7d20\u7684\u8fed\u4ee3\u5668\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">unordered_set \/ unordered_map<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5e95\u5c42\u57fa\u4e8e\u54c8\u5e0c\u8868\u5b9e\u73b0\uff0c\u56e0\u6b64\u5176\u5143\u7d20\u7684\u6392\u5217\u662f\u6742\u4e71\u65e0\u5e8f\u7684\u3002<\/li>\n\n\n\n<li>\u67e5\u627e\u3001\u5220\u9664\u3001\u6dfb\u52a0\u7684\u65f6\u95f4\u590d\u6742\u5ea6<strong>\u5e73\u5747\u4e3a O(1)<\/strong>\uff0c<strong>\u6700\u574f\u4f1a\u9000\u5316\u81f3 O(n)<\/strong>\uff08\u54c8\u5e0c\u51b2\u7a81\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">multiset \/ multimap<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7\u6269\u5c55\u7ea2\u9ed1\u6811\u7684\u6bd4\u8f83\u51fd\u6570\u4ece\u800c\u652f\u6301\u91cd\u590d\u5143\u7d20\uff0c<\/li>\n\n\n\n<li>\u5143\u7d20\u6709\u5e8f\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\u4e0e set \/ map \u4e00\u81f4\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ set \u6bd4\u8f83\u51fd\u6570\nif (new_key &lt; node.key) {\n    \/\/ \u5411\u5de6\u5b50\u6811\u63d2\u5165\n} else if (node.key &lt; new_key) {\n    \/\/ \u5411\u53f3\u5b50\u6811\u63d2\u5165\n} else {\n    \/\/ \u952e\u5df2\u5b58\u5728\uff0c\u62d2\u7edd\u63d2\u5165\uff08set \u7684\u7279\u6027\uff09\n}\n\n\/\/ multiset \u6bd4\u8f83\u51fd\u6570\nif (new_key &lt; node.key) {\n    \/\/ \u5411\u5de6\u5b50\u6811\u63d2\u5165\n} else {\n    \/\/ \u5411\u53f3\u5b50\u6811\u63d2\u5165\uff08\u5305\u62ec new_key == node.key \u7684\u60c5\u51b5\uff09\n    \/\/ key \u76f8\u540c\u65f6\uff0c\u65b0\u8282\u70b9\u4f1a\u88ab\u63d2\u5165\u5230\u53f3\u5b50\u6811\u7684\u6700\u5de6\u7aef\uff08\u5373\u4e2d\u5e8f\u904d\u5386\u65f6\uff0c\u76f8\u540c\u952e\u6309\u63d2\u5165\u987a\u5e8f\u6392\u5217\uff09\u3002\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u6e90\u7801\u7248\u672c\uff1aSGI-STL V3.3 set \/ map \u91cd\u70b9\u4ee3\u7801\uff1a \u63d2\u5165\u540e\uff0c\u8fd4\u56de iterator \u5176\u4e2d .s [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87],"tags":[],"class_list":["post-3241","post","type-post","status-publish","format-standard","hentry","category-87"],"_links":{"self":[{"href":"https:\/\/guapicoding.com\/index.php?rest_route=\/wp\/v2\/posts\/3241","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/guapicoding.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/guapicoding.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/guapicoding.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/guapicoding.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3241"}],"version-history":[{"count":3,"href":"https:\/\/guapicoding.com\/index.php?rest_route=\/wp\/v2\/posts\/3241\/revisions"}],"predecessor-version":[{"id":3262,"href":"https:\/\/guapicoding.com\/index.php?rest_route=\/wp\/v2\/posts\/3241\/revisions\/3262"}],"wp:attachment":[{"href":"https:\/\/guapicoding.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/guapicoding.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/guapicoding.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}