{"id":675,"date":"2020-09-26T11:09:48","date_gmt":"2020-09-26T03:09:48","guid":{"rendered":"http:\/\/39.96.58.60\/?p=675"},"modified":"2022-10-18T16:38:23","modified_gmt":"2022-10-18T08:38:23","slug":"leetcode-75-%e9%a2%9c%e8%89%b2%e5%88%86%e7%b1%bb","status":"publish","type":"post","link":"http:\/\/www.yatenglg.cn\/blog\/?p=675","title":{"rendered":"Leetcode 75. \u989c\u8272\u5206\u7c7b"},"content":{"rendered":"<p>\u7ed9\u5b9a\u4e00\u4e2a\u5305\u542b\u7ea2\u8272\u3001\u767d\u8272\u548c\u84dd\u8272\uff0c\u4e00\u5171&nbsp;<em>n <\/em>\u4e2a\u5143\u7d20\u7684\u6570\u7ec4\uff0c<strong><a href=\"https:\/\/baike.baidu.com\/item\/%E5%8E%9F%E5%9C%B0%E7%AE%97%E6%B3%95\" target=\"_blank\" rel=\"noopener noreferrer\">\u539f\u5730<\/a><\/strong>\u5bf9\u5b83\u4eec\u8fdb\u884c\u6392\u5e8f\uff0c\u4f7f\u5f97\u76f8\u540c\u989c\u8272\u7684\u5143\u7d20\u76f8\u90bb\uff0c\u5e76\u6309\u7167\u7ea2\u8272\u3001\u767d\u8272\u3001\u84dd\u8272\u987a\u5e8f\u6392\u5217\u3002<\/p>\n<p>\u6b64\u9898\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u6574\u6570 0\u3001&nbsp;1 \u548c 2 \u5206\u522b\u8868\u793a\u7ea2\u8272\u3001\u767d\u8272\u548c\u84dd\u8272\u3002<\/p>\n<p><strong>\u6ce8\u610f:<\/strong><\/p>\n<p>\u4e0d\u80fd\u4f7f\u7528\u4ee3\u7801\u5e93\u4e2d\u7684\u6392\u5e8f\u51fd\u6570\u6765\u89e3\u51b3\u8fd9\u9053\u9898\u3002<\/p>\n<p><strong>\u793a\u4f8b:<\/strong><\/p>\n<pre><strong>\u8f93\u5165:<\/strong> [2,0,2,1,1,0]\n\n<strong>\u8f93\u51fa:<\/strong> [0,0,1,1,2,2]<\/pre>\n<p><strong>\u8fdb\u9636\uff1a<\/strong><\/p>\n<ul>\n<li>\u4e00\u4e2a\u76f4\u89c2\u7684\u89e3\u51b3\u65b9\u6848\u662f\u4f7f\u7528\u8ba1\u6570\u6392\u5e8f\u7684\u4e24\u8d9f\u626b\u63cf\u7b97\u6cd5\u3002\t\u9996\u5148\uff0c\u8fed\u4ee3\u8ba1\u7b97\u51fa0\u30011 \u548c 2 \u5143\u7d20\u7684\u4e2a\u6570\uff0c\u7136\u540e\u6309\u71670\u30011\u30012\u7684\u6392\u5e8f\uff0c\u91cd\u5199\u5f53\u524d\u6570\u7ec4\u3002<\/li>\n<li>\u4f60\u80fd\u60f3\u51fa\u4e00\u4e2a\u4ec5\u4f7f\u7528\u5e38\u6570\u7a7a\u95f4\u7684\u4e00\u8d9f\u626b\u63cf\u7b97\u6cd5\u5417\uff1f<\/li>\n<\/ul>\n<p>**\u96be\u5ea6**: Medium<\/p>\n<p>**\u6807\u7b7e**: \u6392\u5e8f\u3001 \u6570\u7ec4\u3001 \u53cc\u6307\u9488\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\uff1a28 ms, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8699.58% \u7684\u7528\u6237\n\u5185\u5b58\u6d88\u8017\uff1a13.1 MB, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8697.34% \u7684\u7528\u6237\n\n\u89e3\u9898\u601d\u8def\uff1a\n    \u6307\u9488\u3002\u5c06\u84dd\u8272\u653e\u5230\u672b\u5c3e\uff0c\u5c06\u7ea2\u8272\u653e\u5230\u8d77\u59cb\u3002\n    \u4e3a\u907f\u514d\u65e0\u9650\u5faa\u73af\uff0c\u4f7f\u7528\u4e00\u4e2a\u6307\u9488\u6807\u8bb0\u84dd\u8272\u7684\u653e\u7f6e\u4f4d\u7f6e\n\"\"\"\nclass Solution:\n    def sortColors(self, nums: List[int]) -&gt; None:\n        \"\"\"\n        Do not return anything, modify nums in-place instead.\n        \"\"\"\n        n = len(nums)\n        index = 0   # \u6307\u9488\uff0c\u6307\u5411\u5f53\u524d\u5904\u7406\u5143\u7d20\n        r = n-1 # \u7528\u4e8e\u6307\u5411\u84dd\u8272\u7684\u653e\u7f6e\u4f4d\u7f6e\u3002\n        while index &lt; r+1:\n            # print(nums, index)\n            if nums[index] == 0:\n                nums.insert(0, nums.pop(index)) # \u53d6\u51fa0\uff0c\u653e\u5230\u5217\u8868\u5934\u90e8\uff0cindex\u540e\u79fb\n                index += 1  # \u6307\u9488+1\n            elif nums[index] == 2:\n                nums.insert(r, nums.pop(index)) # \u53d6\u51fa2\uff0c \u653e\u5230r\u6307\u9488\u6307\u5411\u4f4d\u7f6e\uff0cr\u524d\u79fb\u3002index\u4e0d\u52a8\n                r -= 1\n            else:   # 1\u4e0d\u5904\u7406\uff0c index\u540e\u79fb\n                index += 1<\/code><\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u7ed9\u5b9a\u4e00\u4e2a\u5305\u542b\u7ea2\u8272\u3001\u767d\u8272\u548c\u84dd\u8272\uff0c\u4e00\u5171&nbsp;n \u4e2a\u5143\u7d20\u7684\u6570\u7ec4\uff0c\u539f\u5730\u5bf9\u5b83\u4eec\u8fdb\u884c\u6392\u5e8f\uff0c\u4f7f\u5f97\u76f8\u540c\u989c\u8272\u7684\u5143\u7d20\u76f8\u90bb\uff0c\u5e76&#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\/675"}],"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=675"}],"version-history":[{"count":1,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/675\/revisions"}],"predecessor-version":[{"id":676,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/675\/revisions\/676"}],"wp:attachment":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=675"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=675"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=675"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}