{"id":38400,"date":"2023-12-11T14:44:21","date_gmt":"2023-12-11T06:44:21","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=38400"},"modified":"2023-12-11T14:44:21","modified_gmt":"2023-12-11T06:44:21","slug":"%e8%af%b7%e4%bd%a0%e8%af%b4%e4%b8%80%e4%b8%8b%e5%a0%86%e6%8e%92%e5%ba%8f%e7%9a%84%e6%80%9d%e6%83%b3%ef%bc%9f%e4%bb%a5%e5%8f%8a%e6%80%8e%e4%b9%88%e5%88%9d%e5%a7%8b%e5%bb%ba%e5%a0%86%ef%bc%9f%e6%98%af","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/%e8%af%b7%e4%bd%a0%e8%af%b4%e4%b8%80%e4%b8%8b%e5%a0%86%e6%8e%92%e5%ba%8f%e7%9a%84%e6%80%9d%e6%83%b3%ef%bc%9f%e4%bb%a5%e5%8f%8a%e6%80%8e%e4%b9%88%e5%88%9d%e5%a7%8b%e5%bb%ba%e5%a0%86%ef%bc%9f%e6%98%af\/","title":{"rendered":"\u8bf7\u4f60\u8bf4\u4e00\u4e0b\u5806\u6392\u5e8f\u7684\u601d\u60f3\uff1f\u4ee5\u53ca\u600e\u4e48\u521d\u59cb\u5efa\u5806\uff1f\u662f\u5426\u7a33\u5b9a\uff1f"},"content":{"rendered":"

“`” \u53c2\u8003\u56de\u7b54\uff1a<\/p>\n

\u5806\u6392\u5e8f\u662f\u5229\u7528\u5806\u8fd9\u79cd\u6570\u636e\u7ed3\u6784\u800c\u8bbe\u8ba1\u7684\u4e00\u79cd\u6392\u5e8f\u7b97\u6cd5\uff0c\u5806\u6392\u5e8f\u662f\u4e00\u79cd\u9009\u62e9\u6392\u5e8f\uff0c\u5b83\u7684\u6700\u574f\uff0c\u6700\u597d\uff0c\u5e73\u5747\u65f6\u95f4\u590d\u6742\u5ea6\u5747\u4e3aO(nlogn)\uff0c\u5b83\u662f\u4e0d\u7a33\u5b9a\u7684\u6392\u5e8f\u3002<\/p>\n

\u5806\u662f\u5177\u6709\u4ee5\u4e0b\u6027\u8d28\u7684\u5b8c\u5168\u4e8c\u53c9\u6811\uff1a\u6bcf\u4e2a\u7ed3\u70b9\u7684\u503c\u90fd\u5927\u4e8e\u6216\u7b49\u4e8e\u5176\u5de6\u53f3\u5b69\u5b50\u7ed3\u70b9\u7684\u503c\uff0c\u79f0\u4e3a\u5927\u9876\u5806\uff1b\u6216\u8005\u6bcf\u4e2a\u7ed3\u70b9\u7684\u503c\u90fd\u5c0f\u4e8e\u6216\u7b49\u4e8e\u5176\u5de6\u53f3\u5b69\u5b50\u7ed3\u70b9\u7684\u503c\uff0c\u79f0\u4e3a\u5c0f\u9876\u5806\u3002\u5982\u4e0b\u56fe\uff1a<\/p>\n

<img alt=""img"" referrerpolicy=""no-referrer"" src=""https:\/\/uploadfiles.nowcoder.com\/images\/20190314\/311436_1552540345430_02330A06177B0BAC2E932D92056866A9""><\/p>\n

\u5bf9\u5806\u4e2d\u7684\u7ed3\u70b9\u6309\u5c42\u8fdb\u884c\u7f16\u53f7\uff0c\u5c06\u8fd9\u79cd\u903b\u8f91\u7ed3\u6784\u6620\u5c04\u5230\u6570\u7ec4\u4e2d\u5c31\u662f\u4e0b\u9762\u8fd9\u4e2a\u6837\u5b50<\/p>\n

<img alt=""img"" referrerpolicy=""no-referrer"" src=""https:\/\/uploadfiles.nowcoder.com\/images\/20190314\/311436_1552540372116_AB97E64DAA50614BA72E89119EDA8BB5""><\/p>\n

\u8be5\u6570\u7ec4\u4ece\u903b\u8f91\u4e0a\u8bb2\u5c31\u662f\u4e00\u4e2a\u5806\u7ed3\u6784\uff0c\u7528\u7b80\u5355\u7684\u516c\u5f0f\u6765\u63cf\u8ff0\u4e00\u4e0b\u5806\u7684\u5b9a\u4e49\u5c31\u662f\uff1a<\/p>\n

\u5927\u9876\u5806\uff1aarr[i] >= arr[2i+1] && arr[i] >= arr[2i+2]<\/p>\n

\u5c0f\u9876\u5806\uff1aarr[i] <= arr[2i+1] && arr[i] <= arr[2i+2]<\/p>\n

\u5806\u6392\u5e8f\u7684\u57fa\u672c\u601d\u60f3\u662f\uff1a\u5c06\u5f85\u6392\u5e8f\u5e8f\u5217\u6784\u9020\u6210\u4e00\u4e2a\u5927\u9876\u5806\uff0c\u6b64\u65f6\uff0c\u6574\u4e2a\u5e8f\u5217\u7684\u6700\u5927\u503c\u5c31\u662f\u5806\u9876\u7684\u6839\u8282\u70b9\u3002\u5c06\u5176\u4e0e\u672b\u5c3e\u5143\u7d20\u8fdb\u884c\u4ea4\u6362\uff0c\u6b64\u65f6\u672b\u5c3e\u5c31\u4e3a\u6700\u5927\u503c\u3002\u7136\u540e\u5c06\u5269\u4f59n-1\u4e2a\u5143\u7d20\u91cd\u65b0\u6784\u9020\u6210\u4e00\u4e2a\u5806\uff0c\u8fd9\u6837\u4f1a\u5f97\u5230n\u4e2a\u5143\u7d20\u7684\u6b21\u5c0f\u503c\u3002\u5982\u6b64\u53cd\u590d\u6267\u884c\uff0c\u4fbf\u80fd\u5f97\u5230\u4e00\u4e2a\u6709\u5e8f\u5e8f\u5217\u4e86<\/p>\n

\u6b65\u9aa4\u4e00\u6784\u9020\u521d\u59cb\u5806\u3002\u5c06\u7ed9\u5b9a\u65e0\u5e8f\u5e8f\u5217\u6784\u9020\u6210\u4e00\u4e2a\u5927\u9876\u5806\uff08\u4e00\u822c\u5347\u5e8f\u91c7\u7528\u5927\u9876\u5806\uff0c\u964d\u5e8f\u91c7\u7528\u5c0f\u9876\u5806)\u3002<\/p>\n

\u5047\u8bbe\u7ed9\u5b9a\u65e0\u5e8f\u5e8f\u5217\u7ed3\u6784\u5982\u4e0b<\/p>\n

<img alt=""img"" referrerpolicy=""no-referrer"" src=""https:\/\/uploadfiles.nowcoder.com\/images\/20190314\/311436_1552540395195_53B345136CE8C7227AD790B6129D9218""><\/p>\n

\u4ece\u6700\u540e\u4e00\u4e2a\u975e\u53f6\u5b50\u7ed3\u70b9\u5f00\u59cb\uff08\u53f6\u7ed3\u70b9\u81ea\u7136\u4e0d\u7528\u8c03\u6574\uff0c\u7b2c\u4e00\u4e2a\u975e\u53f6\u5b50\u7ed3\u70b9arr.length\/2-1=5\/2-1=1\uff0c\u4e5f\u5c31\u662f\u4e0b\u9762\u76846\u7ed3\u70b9\uff09\uff0c\u4ece\u5de6\u81f3\u53f3\uff0c\u4ece\u4e0b\u81f3\u4e0a\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n

<img alt=""img"" referrerpolicy=""no-referrer"" src=""https:\/\/uploadfiles.nowcoder.com\/images\/20190314\/311436_1552540414998_F20585F03AB85D3425529C50AE899766""><\/p>\n

\u627e\u5230\u7b2c\u4e8c\u4e2a\u975e\u53f6\u8282\u70b94\uff0c\u7531\u4e8e[4,9,8]\u4e2d9\u5143\u7d20\u6700\u5927\uff0c4\u548c9\u4ea4\u6362\u3002<\/p>\n

<img alt=""img"" referrerpolicy=""no-referrer"" src=""https:\/\/uploadfiles.nowcoder.com\/images\/20190314\/311436_1552540441916_744DA85F7FF550ECC1D6C557CC9B1484""><\/p>\n

\u8fd9\u65f6\uff0c\u4ea4\u6362\u5bfc\u81f4\u4e86\u5b50\u6839[4,5,6]\u7ed3\u6784\u6df7\u4e71\uff0c\u7ee7\u7eed\u8c03\u6574\uff0c[4,5,6]\u4e2d6\u6700\u5927\uff0c\u4ea4\u63624\u548c6\u3002<\/p>\n

<img alt=""img"" referrerpolicy=""no-referrer"" src=""https:\/\/uploadfiles.nowcoder.com\/images\/20190314\/311436_1552540464270_846B925275B538B9C8B123C045E93228""><\/p>\n

\u6b64\u65f6\uff0c\u6211\u4eec\u5c31\u5c06\u4e00\u4e2a\u65e0\u9700\u5e8f\u5217\u6784\u9020\u6210\u4e86\u4e00\u4e2a\u5927\u9876\u5806\u3002<\/p>\n

\u6b65\u9aa4\u4e8c\u5c06\u5806\u9876\u5143\u7d20\u4e0e\u672b\u5c3e\u5143\u7d20\u8fdb\u884c\u4ea4\u6362\uff0c\u4f7f\u672b\u5c3e\u5143\u7d20\u6700\u5927\u3002\u7136\u540e\u7ee7\u7eed\u8c03\u6574\u5806\uff0c\u518d\u5c06\u5806\u9876\u5143\u7d20\u4e0e\u672b\u5c3e\u5143\u7d20\u4ea4\u6362\uff0c\u5f97\u5230\u7b2c\u4e8c\u5927\u5143\u7d20\u3002\u5982\u6b64\u53cd\u590d\u8fdb\u884c\u4ea4\u6362\u3001\u91cd\u5efa\u3001\u4ea4\u6362\u3002<\/p>\n

a.\u5c06\u5806\u9876\u5143\u7d209\u548c\u672b\u5c3e\u5143\u7d204\u8fdb\u884c\u4ea4\u6362<\/p>\n

<img alt=""img"" referrerpolicy=""no-referrer"" src=""https:\/\/uploadfiles.nowcoder.com\/images\/20190314\/311436_1552540485218_D609F2BF93495372D96ACEEA28BA89C7""><\/p>\n

b.\u91cd\u65b0\u8c03\u6574\u7ed3\u6784\uff0c\u4f7f\u5176\u7ee7\u7eed\u6ee1\u8db3\u5806\u5b9a\u4e49<\/p>\n

<img alt=""img"" referrerpolicy=""no-referrer"" src=""https:\/\/uploadfiles.nowcoder.com\/images\/20190314\/311436_1552540506636_76C6A2E219CE7AE8B5EAE8F5C3E6D0FE""><\/p>\n

c.\u518d\u5c06\u5806\u9876\u5143\u7d208\u4e0e\u672b\u5c3e\u5143\u7d205\u8fdb\u884c\u4ea4\u6362\uff0c\u5f97\u5230\u7b2c\u4e8c\u5927\u5143\u7d208.\u540e\u7eed\u8fc7\u7a0b\uff0c\u7ee7\u7eed\u8fdb\u884c\u8c03\u6574\uff0c\u4ea4\u6362\uff0c\u5982\u6b64\u53cd\u590d\u8fdb\u884c\uff0c\u6700\u7ec8\u4f7f\u5f97\u6574\u4e2a\u5e8f\u5217\u6709\u5e8f<\/p>\n

<img alt=""img"" referrerpolicy=""no-referrer"" src=""https:\/\/uploadfiles.nowcoder.com\/images\/20190314\/311436_1552540569334_8E16BFEA8F72D20E3A896B1DA8656725""><\/p>\n

<img alt=""img"" referrerpolicy=""no-referrer"" src=""https:\/\/uploadfiles.nowcoder.com\/images\/20190314\/311436_1552540581804_3F4CD0E1266CAE55CFC7C808EE1AD263""><\/p>\n

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

“`” \u53c2\u8003\u56de\u7b54\uff1a \u5806\u6392\u5e8f\u662f\u5229\u7528\u5806\u8fd9\u79cd\u6570\u636e\u7ed3\u6784\u800c\u8bbe\u8ba1\u7684\u4e00\u79cd\u6392\u5e8f\u7b97\u6cd5\uff0c\u5806\u6392\u5e8f\u662f\u4e00\u79cd\u9009\u62e9\u6392 […]<\/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-38400","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/38400","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=38400"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/38400\/revisions"}],"predecessor-version":[{"id":38401,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/38400\/revisions\/38401"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=38400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=38400"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=38400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}