{"id":43569,"date":"2023-12-11T15:00:13","date_gmt":"2023-12-11T07:00:13","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=43569"},"modified":"2023-12-11T15:00:13","modified_gmt":"2023-12-11T07:00:13","slug":"%e7%94%a8%e7%a8%8b%e5%ba%8f%e6%89%be%e5%87%ba%e6%95%b0%e7%bb%84%e4%b8%ad%e5%87%ba%e7%8e%b0%e6%ac%a1%e6%95%b0%e8%b6%85%e8%bf%87%e4%b8%80%e5%8d%8a%e7%9a%84%e6%95%b0%e5%ad%97-3","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/%e7%94%a8%e7%a8%8b%e5%ba%8f%e6%89%be%e5%87%ba%e6%95%b0%e7%bb%84%e4%b8%ad%e5%87%ba%e7%8e%b0%e6%ac%a1%e6%95%b0%e8%b6%85%e8%bf%87%e4%b8%80%e5%8d%8a%e7%9a%84%e6%95%b0%e5%ad%97-3\/","title":{"rendered":"\u7528\u7a0b\u5e8f\u627e\u51fa\u6570\u7ec4\u4e2d\u51fa\u73b0\u6b21\u6570\u8d85\u8fc7\u4e00\u534a\u7684\u6570\u5b57"},"content":{"rendered":"

“`”<\/p>\n

\u601d\u8def\uff1a
\n1\u3001 \u4e00\u4e2a\u6570\u5b57\u5728\u6570\u7ec4\u4e2d\u51fa\u73b0\u6b21\u6570\u8d85\u8fc7\u4e86\u4e00\u534a\uff0c\u5219\u6392\u5e8f\u540e\uff0c\u4f4d\u4e8e\u6570\u7ec4\u4e2d\u95f4\u7684\u6570\u5b57\u4e00\u5b9a\u5c31\u662f\u8be5\u51fa\u73b0\u6b21\u6570\u8d85\u8fc7\u4e86\u957f\u5ea6\u4e00\u534a\u7684\u6570\u5b57\uff08\u53ef\u4ee5\u7528\u53cd\u8bc1\u6cd5\u8bc1\u660e\uff09\uff0c\u4e5f\u5373\u662f\u8bf4\uff0c\u8fd9\u4e2a\u6570\u5b57\u5c31\u662f\u7edf\u8ba1\u5b66\u4e0a\u7684\u4e2d\u4f4d\u6570\u3002\u6700\u5bb9\u6613\u60f3\u5230\u7684\u529e\u6cd5\u662f\u7528\u5feb\u901f\u6392\u5e8f\u5bf9\u6570\u7ec4\u6392\u5e8f\u53f7\u540e\uff0c\u76f4\u63a5\u53d6\u51fa\u4e2d\u95f4\u7684\u90a3\u4e2a\u6570\u5b57\uff0c\u8fd9\u6837\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(nlogn)\uff0c\u7a7a\u95f4\u590d\u6742\u5ea6\u4e3aO(1)\u3002
\n2 \u3001\u4e8b\u5b9e\u4e0a\u53ef\u4ee5\u4e0d\u7528\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u6216\u8005\u8bf4\u4ec5\u90e8\u5206\u6392\u5e8f\uff0c\u53d7\u5feb\u901f\u6392\u5e8f\u7684partition\u51fd\u6570\u7684\u542f\u53d1\uff0c\u6211\u4eec\u53ef\u4ee5\u5229\u7528\u53cd\u590d\u8c03\u7528partition\u51fd\u6570\u6765\u6c42\u7684\u8be5\u6570\u5b57\u3002\u6211\u4eec\u73b0\u5728\u6570\u7ec4\u4e2d\u968f\u673a\u9009\u53d6\u4e00\u4e2a\u6570\u5b57\uff0c\u800c\u540e\u901a\u8fc7Partition\u51fd\u6570\u8fd4\u56de\u8be5\u6570\u5b57\u5728\u6570\u7ec4\u4e2d\u7684\u7d22\u5f15index\uff0c\u5982\u679cindex\u521a\u597d\u7b49\u4e8en\/2\uff0c\u5219\u8fd9\u4e2a\u6570\u5b57\u4fbf\u662f\u6570\u7ec4\u7684\u4e2d\u4f4d\u6570\uff0c\u4e5f\u5373\u662f\u8981\u6c42\u7684\u6570\uff0c\u5982\u679cindex\u5927\u4e8en\/2\uff0c\u5219\u4e2d\u4f4d\u6570\u80af\u5b9a\u5728index\u7684\u5de6\u8fb9\uff0c\u5728\u5de6\u8fb9\u7ee7\u7eed\u5bfb\u627e\u5373\u53ef\uff0c\u53cd\u4e4b\u5728\u53f3\u8fb9\u5bfb\u627e\u3002\u8fd9\u6837\u53ef\u4ee5\u53ea\u5728index\u7684\u4e00\u8fb9\u5bfb\u627e\uff0c\u800c\u4e0d\u7528\u4e24\u8fb9\u90fd\u6392\u5e8f\uff0c\u51cf\u5c11\u4e86\u4e00\u534a\u6392\u5e8f\u65f6\u95f4\u3002\u8fd9\u79cd\u60c5\u51b5\u7684\u5e73\u5747\u65f6\u95f4\u590d\u6742\u5ea6\u5927\u81f4\u4e3a\uff1aT(n) = n+n\/2+n\/4+n\/8+\u2026+1\uff0c\u5f88\u660e\u663e\u5f53n\u5f88\u5927\u65f6\uff0cT(n)\u8d8b\u8fd1\u4e8e2n\uff0c\u4e5f\u5c31\u662f\u8bf4\u5e73\u5747\u60c5\u51b5\u4e0b\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(n),\u4f46\u662f\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6700\u574f\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4f9d\u7136\u4e3aO(nn)\uff0c\u6700\u574f\u60c5\u51b5\u4e0b\uff0cindex\u603b\u662f\u4f4d\u4e8e\u6570\u7ec4\u7684\u6700\u5de6\u6216\u6700\u53f3\u8fb9\uff0c\u8fd9\u6837\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aT(n) = n+n\u4e001+n\u4e002+n\u4e003+\u2026+1 = n(n\u4e001)\/2\uff0c\u663e\u7136\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(nn)\uff0c\u7a7a\u95f4\u590d\u6742\u5ea6\u4e3aO(1)\u3002<\/p>\n

<pre><code> "“`
\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"

“`” \u601d\u8def\uff1a 1\u3001 \u4e00\u4e2a\u6570\u5b57\u5728\u6570\u7ec4\u4e2d\u51fa\u73b0\u6b21\u6570\u8d85\u8fc7\u4e86\u4e00\u534a\uff0c\u5219\u6392\u5e8f\u540e\uff0c\u4f4d\u4e8e\u6570\u7ec4\u4e2d\u95f4\u7684\u6570\u5b57 […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-43569","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/43569","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=43569"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/43569\/revisions"}],"predecessor-version":[{"id":43570,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/43569\/revisions\/43570"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=43569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=43569"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=43569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}