{"id":2626,"date":"2026-01-23T11:30:42","date_gmt":"2026-01-23T03:30:42","guid":{"rendered":"https:\/\/womeifei.cn\/?p=2626"},"modified":"2026-01-27T17:44:23","modified_gmt":"2026-01-27T09:44:23","slug":"quicksort","status":"publish","type":"post","link":"https:\/\/womeifei.cn\/index.php\/2026\/01\/23\/quicksort\/","title":{"rendered":"QuickSort"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u4ee3\u7801<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/womeifei.cn\/wp-content\/uploads\/2026\/01\/image-40-1024x726.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"726\" data-original=\"https:\/\/womeifei.cn\/wp-content\/uploads\/2026\/01\/image-40-1024x726.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2627\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u65f6\u95f4\u590d\u6742\u5ea6 O(nlogn)<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/womeifei.cn\/wp-content\/uploads\/2026\/01\/image-41-1024x339.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"339\" data-original=\"https:\/\/womeifei.cn\/wp-content\/uploads\/2026\/01\/image-41-1024x339.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2628\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/womeifei.cn\/wp-content\/uploads\/2026\/01\/image-42-1024x264.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"264\" data-original=\"https:\/\/womeifei.cn\/wp-content\/uploads\/2026\/01\/image-42-1024x264.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2629\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u6700\u574f\u65f6\u95f4\u590d\u6742\u5ea6 O(N^2)<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/womeifei.cn\/wp-content\/uploads\/2026\/01\/image-43-1024x391.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"391\" data-original=\"https:\/\/womeifei.cn\/wp-content\/uploads\/2026\/01\/image-43-1024x391.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2631\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p><strong>\u52a0\u4e00\u884c\u4ec0\u4e48\u4ee3\u7801\u80fd\u907f\u514d?<\/strong><\/p>\n\n\n\n<p>\u5728 <code>partition<\/code> \u903b\u8f91\u5f00\u59cb\u524d\uff0c\u52a0\u4e00\u4e2a<strong>\u968f\u673a\u6253\u4e71<\/strong>\u6216\u8005<strong>\u968f\u673a\u9009\u57fa\u51c6<\/strong>\u7684\u64cd\u4f5c<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u66f4\u9002\u5408\u81ea\u5df1\u4f53\u8d28\u7684\u4ee3\u7801&#8230;&#8230;<\/h2>\n\n\n\n<p>\u4e4b\u524d\u5927\u4e00\u5907\u6218ACM\u7ade\u8d5b\u7684\u65f6\u5019\u80cc\u8fc7\u5feb\u6392\u7684\u6a21\u7248 \u89c9\u5f97\u5f88\u597d\u8bb0 \u8fd8\u662f\u7edf\u4e00\u7528\u8fd9\u4e2a\u5427<\/p>\n\n\n\n<p><strong>Hoare \u5206\u533a\u6cd5 + \u4e2d\u70b9\u57fa\u51c6<\/strong><\/p>\n\n\n\n<p>\u6700\u597d\u8bb0\u7684\u5199\u6cd5\u662f\u53d6<strong>\u4e2d\u95f4\u5143\u7d20<\/strong>\u4f5c\u4e3a\u57fa\u51c6\uff0c<code>i<\/code> \u548c <code>j<\/code> \u4ece\u4e24\u5934\u5411\u4e2d\u95f4\u8d70\uff0c<strong>\u903b\u8f91\u5b8c\u5168\u955c\u50cf<\/strong>  <\/p>\n\n\n\n<p>\u4e0d\u7528\u7279\u610f\u53bb\u5904\u7406 Pivot \u7684\u4ea4\u6362\uff0c\u4e5f\u4e0d\u7528\u7ea0\u7ed3\u6700\u540e Pivot \u843d\u5728\u54ea<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/womeifei.cn\/wp-content\/uploads\/2026\/01\/image-44-1024x709.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"709\" data-original=\"https:\/\/womeifei.cn\/wp-content\/uploads\/2026\/01\/image-44-1024x709.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2661\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u8fd9\u4e2a\u4ee3\u7801\u8fd8\u6d88\u9664\u4e86\u56e0\u201c\u91cd\u590d\u5143\u7d20\u201d\u5bfc\u81f4\u7684O(N^2)<\/p>\n\n\n\n<p>\u4f46\u662f\u8fd8\u662f\u4e0d\u80fd\u89e3\u51b3\u4eba\u4e3a\u6784\u9020\u7684\u5bf9\u6297\u6570\u636e<\/p>\n\n\n\n<p>\u8981\u60f3\u51e0\u4e4e\u89e3\u51b3\u6700\u574f\u65f6\u95f4\u590d\u6742\u5ea6O(N^2) \u8fd8\u662f\u8981\u968f\u673a\u9009\u4e00\u4e2a\u6570\u4f5c\u4e3apivot\u6700\u597d<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const randomIndex = Math.floor(Math.random() * (right - left + 1)) + left;\nconst pivot = nums&#91;randomIndex];<\/code><\/pre>\n\n\n\n<p>\u5f53\u7136\u8fd0\u6c14\u4e0d\u597d\u6ca1\u529e\u6cd5&#8230;&#8230;(\u5f53\u7136\u6982\u7387\u6781\u4f4e) \u9047\u5230\u6ca1\u62db(\u7b11\u54ed&#8230;&#8230;)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ee3\u7801 \u65f6\u95f4\u590d\u6742\u5ea6 O(nlogn) \u6700\u574f\u65f6\u95f4\u590d\u6742\u5ea6 O(N^2) \u52a0\u4e00\u884c\u4ec0\u4e48\u4ee3\u7801\u80fd\u907f\u514d? \u5728 partitio [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,1,4,7,46],"tags":[],"class_list":["post-2626","post","type-post","status-publish","format-standard","hentry","category-javascript","category-1","category-4","category-7","category-46"],"_links":{"self":[{"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/posts\/2626","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/comments?post=2626"}],"version-history":[{"count":9,"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/posts\/2626\/revisions"}],"predecessor-version":[{"id":2670,"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/posts\/2626\/revisions\/2670"}],"wp:attachment":[{"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2626"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2626"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/womeifei.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2626"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}