{"id":68,"date":"2022-07-29T22:03:52","date_gmt":"2022-07-29T14:03:52","guid":{"rendered":"https:\/\/courtship.top\/?p=68"},"modified":"2022-07-29T22:03:52","modified_gmt":"2022-07-29T14:03:52","slug":"%e4%bc%98%e5%85%88%e9%98%9f%e5%88%97-priority_queue","status":"publish","type":"post","link":"https:\/\/courtship.top\/index.php\/2022\/07\/29\/%e4%bc%98%e5%85%88%e9%98%9f%e5%88%97-priority_queue\/","title":{"rendered":"\u4f18\u5148\u961f\u5217 priority_queue"},"content":{"rendered":"\n<p><strong>std::priority_queue:\u5728\u4f18\u5148\u961f\u5217\u4e2d\uff0c\u4f18\u5148\u7ea7\u9ad8\u7684\u5143\u7d20\u5148\u51fa\u961f\u5217\uff0c\u5e76\u975e\u6309\u7167\u5148\u8fdb\u5148\u51fa\u7684\u8981\u6c42\uff0c\u7c7b\u4f3c\u4e00\u4e2a\u5806(heap)\u3002<\/strong><\/p>\n\n\n\n<p>\u5176\u6a21\u677f\u58f0\u660e\u5e26\u6709\u4e09\u4e2a\u53c2\u6570\uff0cpriority_queue&lt;<strong>Type<\/strong>, <strong>Container<\/strong>, <strong>Functiona<\/strong>l&gt;, \u5176\u4e2d<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Type\u4e3a\u6570\u636e\u7c7b\u578b\uff0cContainer\u4e3a\u4fdd\u5b58\u6570\u636e\u7684\u5bb9\u5668\uff0cFunctional\u4e3a\u5143\u7d20\u6bd4\u8f83\u65b9\u5f0f\u3002<\/li><li>Container\u5fc5\u987b\u662f\u7528\u6570\u7ec4\u5b9e\u73b0\u7684\u5bb9\u5668\uff0c\u6bd4\u5982 vector, deque. STL\u91cc\u9762\u9ed8\u8ba4\u7528\u7684\u662fvector.<\/li><li>\u6bd4\u8f83\u65b9\u5f0f\u9ed8\u8ba4\u7528operator&lt; , <strong>\u6240\u4ee5\u5982\u679c\u628a\u540e\u9762\u4e24\u4e2a\u53c2\u6570\u7f3a\u7701\u7684\u8bdd\uff0c\u4f18\u5148\u961f\u5217\u5c31\u662f\u5927\u9876\u5806\uff0c\u961f\u5934\u5143\u7d20\u6700\u5927\u3002<\/strong><\/li><li><strong>\u4f7f\u7528greater&lt;&gt;\u540e\uff0c\u6570\u636e\u4ece\u5927\u5230\u5c0f\u6392\u5217\uff0ctop()\u8fd4\u56de\u7684\u5c31\u662f\u6700\u5c0f\u503c\u800c\u4e0d\u662f\u6700\u5927\u503c\uff01<\/strong>(\u53d8\u4e3a\u5c0f\u9876\u5806)<\/li><li><strong>\u5982\u679c\u4f7f\u7528\u4e86\u7b2c\u4e09\u4e2a\u53c2\u6570\uff0c\u90a3\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e0d\u80fd\u7701\uff0c\u7528\u4f5c\u4fdd\u5b58\u6570\u636e\u7684\u5bb9\u5668<\/strong><\/li><li><code>priority_queue&lt;int,vector&lt;int&gt; , greater&lt;&gt;&gt; pq;\/\/\u8fd9\u662f\u5bf9\u7684<\/code><\/li><\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;bits\/stdc++.h&gt;\n\nusing namespace std;\n\nint main()\n{\n    vector&lt;int&gt; aa = {1, 2, 3, 4, 5, 6, 7, 8, 9};\n    priority_queue&lt;int&gt; que;\n    for (int i = 0; i &lt; aa.size(); i++)\n    {\n        que.push(aa&#91;i]);\n    }\n\n    sort(aa.begin(), aa.end());\n    for (int i = 0; i &lt; aa.size(); i++)\n    {\n        cout &lt;&lt; aa&#91;i] &lt;&lt; endl;\n    }\n    cout &lt;&lt; que.top() &lt;&lt; endl; \/\/9\n\n    return 0;\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>std::priority_queue:\u5728\u4f18\u5148\u961f\u5217\u4e2d\uff0c\u4f18\u5148\u7ea7\u9ad8\u7684\u5143\u7d20\u5148\u51fa\u961f\u5217\uff0c\u5e76\u975e\u6309\u7167\u5148\u8fdb\u5148\u51fa\u7684\u8981\u6c42\uff0c\u7c7b\u4f3c\u4e00\u4e2a\u5806(heap)\u3002 \u5176 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[5],"tags":[],"class_list":["post-68","post","type-post","status-publish","format-standard","hentry","category-5"],"_links":{"self":[{"href":"https:\/\/courtship.top\/index.php\/wp-json\/wp\/v2\/posts\/68","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/courtship.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/courtship.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/courtship.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/courtship.top\/index.php\/wp-json\/wp\/v2\/comments?post=68"}],"version-history":[{"count":0,"href":"https:\/\/courtship.top\/index.php\/wp-json\/wp\/v2\/posts\/68\/revisions"}],"wp:attachment":[{"href":"https:\/\/courtship.top\/index.php\/wp-json\/wp\/v2\/media?parent=68"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/courtship.top\/index.php\/wp-json\/wp\/v2\/categories?post=68"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/courtship.top\/index.php\/wp-json\/wp\/v2\/tags?post=68"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}