{"id":629,"date":"2020-09-26T11:05:10","date_gmt":"2020-09-26T03:05:10","guid":{"rendered":"http:\/\/39.96.58.60\/?p=629"},"modified":"2022-10-18T16:45:04","modified_gmt":"2022-10-18T08:45:04","slug":"leetcode-82-%e5%88%a0%e9%99%a4%e6%8e%92%e5%ba%8f%e9%93%be%e8%a1%a8%e4%b8%ad%e7%9a%84%e9%87%8d%e5%a4%8d%e5%85%83%e7%b4%a0-ii","status":"publish","type":"post","link":"http:\/\/www.yatenglg.cn\/blog\/?p=629","title":{"rendered":"Leetcode 82. \u5220\u9664\u6392\u5e8f\u94fe\u8868\u4e2d\u7684\u91cd\u590d\u5143\u7d20 II"},"content":{"rendered":"<p>\u7ed9\u5b9a\u4e00\u4e2a\u6392\u5e8f\u94fe\u8868\uff0c\u5220\u9664\u6240\u6709\u542b\u6709\u91cd\u590d\u6570\u5b57\u7684\u8282\u70b9\uff0c\u53ea\u4fdd\u7559\u539f\u59cb\u94fe\u8868\u4e2d&nbsp;<em>\u6ca1\u6709\u91cd\u590d\u51fa\u73b0&nbsp;<\/em>\u7684\u6570\u5b57\u3002<\/p>\n<p><strong>\u793a\u4f8b&nbsp;1:<\/strong><\/p>\n<pre><strong>\u8f93\u5165:<\/strong> 1-&gt;2-&gt;3-&gt;3-&gt;4-&gt;4-&gt;5\n\n<strong>\u8f93\u51fa:<\/strong> 1-&gt;2-&gt;5\n\n<\/pre>\n<p><strong>\u793a\u4f8b&nbsp;2:<\/strong><\/p>\n<pre><strong>\u8f93\u5165:<\/strong> 1-&gt;1-&gt;1-&gt;2-&gt;3\n\n<strong>\u8f93\u51fa:<\/strong> 2-&gt;3<\/pre>\n<p>**\u96be\u5ea6**: Medium<\/p>\n<p>**\u6807\u7b7e**: \u94fe\u8868\u3001<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism undefined-numbers lang-python\" data-lang=\"Python\"><code>\n# -*- coding: utf-8 -*-\n# @Author  : LG\n\n\"\"\"\n\u6267\u884c\u7528\u65f6\uff1a44 ms, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8693.79% \u7684\u7528\u6237\n\u5185\u5b58\u6d88\u8017\uff1a13.4 MB, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8650.94% \u7684\u7528\u6237\n\n\u89e3\u9898\u601d\u8def\uff1a\n    \u53cc\u6307\u9488\n    \u4e00\u4e2a\u6307\u9488\u6307\u5411\u524d\u9762\u672a\u91cd\u590d\u503c\uff0c\u4e00\u4e2a\u6307\u5411\u5f53\u524d\u904d\u5386\u503c\n    \u7528\u53d8\u91cfrepeat\u8bb0\u5f55\u5f53\u524d\u91cd\u590d\u503c\u3002\n    \u82e5\u5f53\u524d\u503c\u7b49\u4e8e\u91cd\u590d\u503c\uff0c\u5219\u5220\u9664\u5f53\u524d\u503c\uff1b\u82e5\u4e0d\u7b49\u4e8e\uff0c\u5219\u67e5\u770b\u5f53\u524d\u503c\u4e0e\u5176\u540e\u4e00\u503c\uff0c\u82e5\u76f8\u7b49\uff0c\u66f4\u65b0repeat\n    \u53ea\u6709\u5f53\u524d\u503c\u4e0d\u7b49\u4e8erepeat\u65f6\uff0c\u624d\u5c1d\u8bd5\u66f4\u65b0repeat\u503c\n\"\"\"\nclass Solution:\n    def deleteDuplicates(self, head: ListNode) -&gt; ListNode:\n        p, q = ListNode(0, next=head), head\n        start = p\n        repeat = float('inf')\n        while q:\n            if (q.val != repeat) and q.next:  # \u82e5\u5f53\u524d\u503c\u4e0d\u7b49\u4e8erepeat\uff0c\u4e14\u4e0d\u662f\u6700\u540e\u4e00\u4e2a\uff0c\u5c1d\u8bd5\u66f4\u65b0repeat\n                if q.val == q.next.val: # \u6bd4\u8f83\u5f53\u524d\u503c\u4e0e\u5176\u540e\u4e00\u76f4\uff0c\u82e5\u76f8\u7b49\uff0c\u66f4\u65b0repeat\n                    repeat = q.val\n\n            if q.val == repeat: # \u82e5\u5f53\u524d\u503c\u7b49\u4e8erepeat\n                p.next = q.next # \u79fb\u52a8p\u6307\u9488\uff0c\u8df3\u8fc7\u5f53\u524d\u503c\n                q = p.next\n            else:\n                p = p.next  # \u4e0d\u7b49\u4e8e\u5219\u540c\u65f6\u5411\u540e\u79fb\u52a8p,q\n                q = p.next\n        return start.next<\/code><\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u7ed9\u5b9a\u4e00\u4e2a\u6392\u5e8f\u94fe\u8868\uff0c\u5220\u9664\u6240\u6709\u542b\u6709\u91cd\u590d\u6570\u5b57\u7684\u8282\u70b9\uff0c\u53ea\u4fdd\u7559\u539f\u59cb\u94fe\u8868\u4e2d&nbsp;\u6ca1\u6709\u91cd\u590d\u51fa\u73b0&nbsp;\u7684\u6570\u5b57\u3002 \u793a&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":[],"categories":[11,1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/629"}],"collection":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=629"}],"version-history":[{"count":1,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/629\/revisions"}],"predecessor-version":[{"id":630,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/629\/revisions\/630"}],"wp:attachment":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=629"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=629"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}