{"id":439,"date":"2020-09-26T10:41:43","date_gmt":"2020-09-26T02:41:43","guid":{"rendered":"http:\/\/39.96.58.60\/?p=439"},"modified":"2022-10-18T16:39:23","modified_gmt":"2022-10-18T08:39:23","slug":"leetcode-213-%e6%89%93%e5%ae%b6%e5%8a%ab%e8%88%8d-ii","status":"publish","type":"post","link":"http:\/\/www.yatenglg.cn\/blog\/?p=439","title":{"rendered":"Leetcode 213. \u6253\u5bb6\u52ab\u820d II"},"content":{"rendered":"<p>\u4f60\u662f\u4e00\u4e2a\u4e13\u4e1a\u7684\u5c0f\u5077\uff0c\u8ba1\u5212\u5077\u7a83\u6cbf\u8857\u7684\u623f\u5c4b\uff0c\u6bcf\u95f4\u623f\u5185\u90fd\u85cf\u6709\u4e00\u5b9a\u7684\u73b0\u91d1\u3002\u8fd9\u4e2a\u5730\u65b9\u6240\u6709\u7684\u623f\u5c4b\u90fd<strong>\u56f4\u6210\u4e00\u5708\uff0c<\/strong>\u8fd9\u610f\u5473\u7740\u7b2c\u4e00\u4e2a\u623f\u5c4b\u548c\u6700\u540e\u4e00\u4e2a\u623f\u5c4b\u662f\u7d27\u6328\u7740\u7684\u3002\u540c\u65f6\uff0c\u76f8\u90bb\u7684\u623f\u5c4b\u88c5\u6709\u76f8\u4e92\u8fde\u901a\u7684\u9632\u76d7\u7cfb\u7edf\uff0c<strong>\u5982\u679c\u4e24\u95f4\u76f8\u90bb\u7684\u623f\u5c4b\u5728\u540c\u4e00\u665a\u4e0a\u88ab\u5c0f\u5077\u95ef\u5165\uff0c\u7cfb\u7edf\u4f1a\u81ea\u52a8\u62a5\u8b66<\/strong>\u3002<\/p>\n<p>\u7ed9\u5b9a\u4e00\u4e2a\u4ee3\u8868\u6bcf\u4e2a\u623f\u5c4b\u5b58\u653e\u91d1\u989d\u7684\u975e\u8d1f\u6574\u6570\u6570\u7ec4\uff0c\u8ba1\u7b97\u4f60<strong>\u5728\u4e0d\u89e6\u52a8\u8b66\u62a5\u88c5\u7f6e\u7684\u60c5\u51b5\u4e0b\uff0c<\/strong>\u80fd\u591f\u5077\u7a83\u5230\u7684\u6700\u9ad8\u91d1\u989d\u3002<\/p>\n<p><strong>\u793a\u4f8b&nbsp;1:<\/strong><\/p>\n<pre><strong>\u8f93\u5165:<\/strong> [2,3,2]\n\n<strong>\u8f93\u51fa:<\/strong> 3\n\n<strong>\u89e3\u91ca:<\/strong> \u4f60\u4e0d\u80fd\u5148\u5077\u7a83 1 \u53f7\u623f\u5c4b\uff08\u91d1\u989d = 2\uff09\uff0c\u7136\u540e\u5077\u7a83 3 \u53f7\u623f\u5c4b\uff08\u91d1\u989d = 2\uff09, \u56e0\u4e3a\u4ed6\u4eec\u662f\u76f8\u90bb\u7684\u3002\n\n<\/pre>\n<p><strong>\u793a\u4f8b 2:<\/strong><\/p>\n<pre><strong>\u8f93\u5165:<\/strong> [1,2,3,1]\n\n<strong>\u8f93\u51fa:<\/strong> 4\n\n<strong>\u89e3\u91ca:<\/strong> \u4f60\u53ef\u4ee5\u5148\u5077\u7a83 1 \u53f7\u623f\u5c4b\uff08\u91d1\u989d = 1\uff09\uff0c\u7136\u540e\u5077\u7a83 3 \u53f7\u623f\u5c4b\uff08\u91d1\u989d = 3\uff09\u3002\n\n&nbsp;    \u5077\u7a83\u5230\u7684\u6700\u9ad8\u91d1\u989d = 1 + 3 = 4 \u3002<\/pre>\n<p>**\u96be\u5ea6**: Medium<\/p>\n<p>**\u6807\u7b7e**: \u52a8\u6001\u89c4\u5212\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\u4e8699.16% \u7684\u7528\u6237\n\u5185\u5b58\u6d88\u8017\uff1a13.7 MB, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8652.73%\n\n\u89e3\u9898\u601d\u8def\uff1a\n    \u7531\u4e8e\u5934\u5c3e\u76f8\u8fde\uff0c\u5c06\u73af\u62c6\u5f00\uff0c[1:]\u4e0e[:-1] \u5355\u72ec\u5904\u7406\uff0c\u5e76\u53d6\u6700\u5927\u503c\n\"\"\"\nclass Solution:\n    def rob(self, nums: List[int]) -&gt; int:\n        if len(nums) == 1:\n            return nums[0]\n        def f(nums):\n            pre, cur = 0, 0\n            for num in nums:\n                cur, pre = max(pre+num, cur), cur\n            return cur\n        return max(f(nums[1:]), f(nums[:-1]))<\/code><\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u4f60\u662f\u4e00\u4e2a\u4e13\u4e1a\u7684\u5c0f\u5077\uff0c\u8ba1\u5212\u5077\u7a83\u6cbf\u8857\u7684\u623f\u5c4b\uff0c\u6bcf\u95f4\u623f\u5185\u90fd\u85cf\u6709\u4e00\u5b9a\u7684\u73b0\u91d1\u3002\u8fd9\u4e2a\u5730\u65b9\u6240\u6709\u7684\u623f\u5c4b\u90fd\u56f4\u6210\u4e00\u5708\uff0c\u8fd9\u610f\u5473\u7740\u7b2c\u4e00\u4e2a&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","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\/439"}],"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=439"}],"version-history":[{"count":1,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/439\/revisions"}],"predecessor-version":[{"id":440,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/439\/revisions\/440"}],"wp:attachment":[{"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=439"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=439"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=439"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}