{"id":78149,"date":"2026-02-26T10:50:00","date_gmt":"2026-02-26T02:50:00","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/78149.html"},"modified":"2026-02-26T10:50:00","modified_gmt":"2026-02-26T02:50:00","slug":"%e4%bb%a3%e7%a0%81%e9%9a%8f%e6%83%b3%e5%bd%95%e7%ae%97%e6%b3%95%e8%ae%ad%e7%bb%83%e8%90%a5%e7%ac%ac%e4%b8%89%e5%8d%81%e5%85%ab%e5%a4%a9198-%e6%89%93%e5%ae%b6%e5%8a%ab%e8%88%8d%e3%80%81213-%e6%89%93","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/78149.html","title":{"rendered":"\u4ee3\u7801\u968f\u60f3\u5f55\u7b97\u6cd5\u8bad\u7ec3\u8425\u7b2c\u4e09\u5341\u516b\u5929|198.\u6253\u5bb6\u52ab\u820d\u3001213.\u6253\u5bb6\u52ab\u820dII\u3001337.\u6253\u5bb6\u52ab\u820dIII"},"content":{"rendered":"<p>\u9898\u76ee\u94fe\u63a5&#xff1a;198.\u6253\u5bb6\u52ab\u820d<\/p>\n<p>\u89e3\u9898\u601d\u8def&#xff1a;\u52a8\u6001\u89c4\u5212<\/p>\n<p>\u5177\u4f53\u601d\u8def&#xff1a;<\/p>\n<p>\u9996\u5148\u5904\u7406\u8fb9\u754c\u60c5\u51b5&#xff0c;\u82e5\u6570\u7ec4\u4ec5 1 \u4e2a\u5143\u7d20\u5219\u76f4\u63a5\u8fd4\u56de\u8be5\u5143\u7d20\u503c&#xff0c;\u521d\u59cb\u5316\u957f\u5ea6\u4e0e nums \u4e00\u81f4\u7684 dp \u6570\u7ec4 dp[i] \u8868\u793a\u62a2\u52ab\u5230\u7b2c i \u95f4\u623f\u5c4b\u65f6\u80fd\u83b7\u5f97\u7684\u6700\u5927\u91d1\u989d&#xff0c;dp[0] \u8bbe\u4e3a nums[0]&#xff0c;\u7b2c\u4e00\u95f4\u623f\u5c4b\u7684\u91d1\u989d&#xff0c;dp[1]\u8bbe\u4e3a nums[0] \u548c nums[1] \u7684\u6700\u5927\u503c&#xff0c;\u524d\u4e24\u95f4\u623f\u5c4b\u9009\u91d1\u989d\u66f4\u5927\u7684\u90a3\u95f4&#xff0c;\u4ece\u7b2c 3 \u95f4\u623f\u5c4b\u5f00\u59cb\u904d\u5386&#xff0c;\u901a\u8fc7\u72b6\u6001\u8f6c\u79fb\u516c\u5f0f dp[i] &#061; max(dp[i &#8211; 2] &#043; nums[i], dp[i &#8211; 1]) \u66f4\u65b0\u6700\u5927\u91d1\u989d&#xff0c;\u62a2\u52ab\u7b2c i \u95f4\u5219\u52a0\u4e0a dp[i &#8211; 2] \u7684\u91d1\u989d&#xff0c;\u4e0d\u62a2\u52ab\u7b2c i \u95f4\u5219\u53d6 dp[i &#8211; 1] \u7684\u91d1\u989d&#xff0c;\u53d6\u4e24\u8005\u6700\u5927\u503c&#xff0c;\u6700\u7ec8\u8fd4\u56de dp[nums.size() &#8211; 1]&#xff0c;\u5373\u62a2\u52ab\u6240\u6709\u623f\u5c4b\u80fd\u83b7\u5f97\u7684\u6700\u5927\u91d1\u989d\u3002<\/p>\n<p>\u5177\u4f53\u4ee3\u7801&#xff1a;<\/p>\n<p>class Solution {<br \/>\npublic:<br \/>\n    int rob(vector&lt;int&gt;&amp; nums) {<br \/>\n        if (nums.size() &#061;&#061; 1) return nums[0];<br \/>\n        vector&lt;int&gt; dp(nums.size(), 0);<br \/>\n        dp[0] &#061; nums[0];<br \/>\n        dp[1] &#061; max(nums[0], nums[1]);<br \/>\n        for (int i &#061; 2 ; i &lt; nums.size(); i&#043;&#043;) {<br \/>\n            dp[i] &#061; max(dp[i &#8211; 2] &#043; nums[i], dp[i &#8211; 1]);<br \/>\n        }<br \/>\n        return dp[nums.size() &#8211; 1];<br \/>\n    }<br \/>\n}; <\/p>\n<p>\u65f6\u95f4\u590d\u6742\u5ea6&#xff1a;O&#xff08;n&#xff09;<\/p>\n<p>\u7a7a\u95f4\u590d\u6742\u5ea6&#xff1a;O&#xff08;n&#xff09;<\/p>\n<\/p>\n<p>\u9898\u76ee\u94fe\u63a5&#xff1a;213.\u6253\u5bb6\u52ab\u820dII<\/p>\n<p>\u89e3\u9898\u601d\u8def&#xff1a;\u52a8\u6001\u89c4\u5212<\/p>\n<p>\u5177\u4f53\u601d\u8def&#xff1a;<\/p>\n<p>\u9996\u5148\u5904\u7406\u8fb9\u754c\u60c5\u51b5&#xff0c;\u82e5\u6570\u7ec4\u4ec5 1 \u4e2a\u5143\u7d20\u5219\u76f4\u63a5\u8fd4\u56de\u8be5\u503c&#xff0c;\u7531\u4e8e\u623f\u5c4b\u73af\u5f62\u6392\u5217&#xff0c;\u9996\u5c3e\u623f\u5c4b\u4e0d\u80fd\u540c\u65f6\u62a2\u52ab&#xff0c;\u56e0\u6b64\u5c06\u95ee\u9898\u62c6\u5206\u4e3a\u4e24\u4e2a\u5b50\u95ee\u9898&#xff0c;\u4e00\u662f\u62a2\u52ab\u4ece\u7b2c 0 \u95f4\u5230\u5012\u6570\u7b2c 2 \u95f4\u7684\u623f\u5c4b\u4e0d\u5305\u542b\u6700\u540e\u4e00\u95f4&#xff0c;\u4e8c\u662f\u62a2\u52ab\u4ece\u7b2c 1 \u95f4\u5230\u6700\u540e\u4e00\u95f4\u7684\u623f\u5c4b\u4e0d\u5305\u542b\u7b2c\u4e00\u95f4&#xff0c;\u5b9a\u4e49 robrange \u51fd\u6570\u5b9e\u73b0\u6253\u5bb6\u52ab\u820d\u7684\u52a8\u6001\u89c4\u5212\u903b\u8f91&#xff0c;\u8be5\u51fd\u6570\u5185\u521d\u59cb\u5316dp\u6570\u7ec4&#xff0c;dp[i]\u8868\u793a\u62a2\u52ab\u5230\u7b2c i \u95f4\u623f\u5c4b\u7684\u6700\u5927\u91d1\u989d&#xff0c;\u8bbe\u7f6e\u8d77\u59cb\u4f4d\u7f6e\u7684\u8fb9\u754c\u503c\u540e&#xff0c;\u901a\u8fc7\u72b6\u6001\u8f6c\u79fb\u516c\u5f0f dp[i] &#061; max(dp[i &#8211; 2] &#043; nums[i], dp[i &#8211; 1]) \u904d\u5386\u8ba1\u7b97&#xff0c;\u6700\u7ec8\u53d6\u4e24\u4e2a\u5b50\u95ee\u9898\u7684\u7ed3\u679c\u6700\u5927\u503c&#xff0c;\u5373\u4e3a\u73af\u5f62\u623f\u5c4b\u80fd\u62a2\u52ab\u5230\u7684\u6700\u5927\u91d1\u989d\u3002<\/p>\n<p>\u5177\u4f53\u4ee3\u7801&#xff1a;<\/p>\n<p>class Solution {<br \/>\npublic:<br \/>\n    int rob(vector&lt;int&gt;&amp; nums) {<br \/>\n        if (nums.size() &#061;&#061; 1) return nums[0];<br \/>\n        return max(robrange(nums, 0 , nums.size() &#8211; 2), robrange(nums, 1 , nums.size() &#8211; 1));<br \/>\n    }<\/p>\n<p>    int robrange(vector&lt;int&gt;&amp; nums, int start, int end) {<br \/>\n        if (end &#061;&#061; start) return nums[start];<br \/>\n        vector&lt;int&gt; dp(nums.size());<br \/>\n        dp[start] &#061; nums[start];<br \/>\n        dp[start &#043; 1] &#061; max(nums[start], nums[start &#043; 1]);<br \/>\n        for (int i &#061; start &#043; 2; i &lt;&#061; end; i&#043;&#043;) {<br \/>\n            dp[i] &#061; max(dp[i &#8211; 2] &#043; nums[i], dp[i &#8211; 1]);<br \/>\n        }<br \/>\n        return dp[end];<br \/>\n    }<br \/>\n}; <\/p>\n<p>\u65f6\u95f4\u590d\u6742\u5ea6&#xff1a;O&#xff08;n&#xff09;<\/p>\n<p>\u7a7a\u95f4\u590d\u6742\u5ea6&#xff1a;O&#xff08;n&#xff09;<\/p>\n<\/p>\n<p>\u9898\u76ee\u94fe\u63a5&#xff1a;337.\u6253\u5bb6\u52ab\u820dIII<\/p>\n<p>\u89e3\u9898\u601d\u8def&#xff1a;\u52a8\u6001\u89c4\u5212 &#043; \u540e\u5e8f\u904d\u5386<\/p>\n<p>\u5177\u4f53\u601d\u8def&#xff1a;<\/p>\n<p>\u5b9a\u4e49 robtree \u51fd\u6570\u9012\u5f52\u5904\u7406\u6bcf\u4e2a\u8282\u70b9&#xff0c;\u8fd4\u56de\u957f\u5ea6\u4e3a 2 \u7684\u6570\u7ec4&#xff0c;[0] \u8868\u793a\u4e0d\u62a2\u52ab\u5f53\u524d\u8282\u70b9\u65f6\u7684\u6700\u5927\u91d1\u989d&#xff0c;[1] \u8868\u793a\u62a2\u52ab\u5f53\u524d\u8282\u70b9\u65f6\u7684\u6700\u5927\u91d1\u989d&#xff0c;\u9012\u5f52\u7ec8\u6b62\u6761\u4ef6\u4e3a\u9047\u5230\u7a7a\u8282\u70b9\u65f6\u8fd4\u56de{0, 0}&#xff0c;\u901a\u8fc7\u540e\u5e8f\u904d\u5386\u5148\u9012\u5f52\u5904\u7406\u5de6\u53f3\u5b50\u8282\u70b9&#xff0c;\u83b7\u53d6\u5de6\u53f3\u5b50\u8282\u70b9\u7684\u72b6\u6001\u6570\u7ec4&#xff0c;\u72b6\u6001\u8f6c\u79fb\u65f6&#xff0c;\u62a2\u52ab\u5f53\u524d\u8282\u70b9\u7684\u91d1\u989d\u00a0val1 &#061; \u5f53\u524d\u8282\u70b9\u503c &#043; \u5de6\u5b50\u8282\u70b9\u4e0d\u62a2\u7684\u91d1\u989d &#043; \u53f3\u5b50\u8282\u70b9\u4e0d\u62a2\u7684\u91d1\u989d&#xff0c;\u4e0d\u62a2\u52ab\u5f53\u524d\u8282\u70b9\u7684\u91d1\u989d val2 &#061; \u5de6\u5b50\u8282\u70b9\u62a2\u6216\u4e0d\u62a2\u7684\u6700\u5927\u503c &#043; \u53f3\u5b50\u8282\u70b9\u62a2\u6216\u4e0d\u62a2\u7684\u6700\u5927\u503c&#xff0c;\u6700\u7ec8 rob \u51fd\u6570\u8c03\u7528 robtree \u5904\u7406\u6839\u8282\u70b9&#xff0c;\u8fd4\u56de\u6839\u8282\u70b9\u62a2\u548c\u4e0d\u62a2\u4e24\u79cd\u72b6\u6001\u7684\u6700\u5927\u503c&#xff0c;\u5373\u4e3a\u6574\u68f5\u6811\u80fd\u62a2\u52ab\u5230\u7684\u6700\u5927\u91d1\u989d\u3002<\/p>\n<p>\u5177\u4f53\u4ee3\u7801&#xff1a;<\/p>\n<p>class Solution {<br \/>\npublic:<br \/>\n    int rob(TreeNode* root) {<br \/>\n        vector&lt;int&gt; ans &#061; robtree(root);<br \/>\n        return max(ans[0], ans[1]);<br \/>\n    }<\/p>\n<p>    vector&lt;int&gt; robtree(TreeNode * cur) {<br \/>\n        if (cur &#061;&#061; nullptr) return vector&lt;int&gt;{0, 0};<br \/>\n        vector&lt;int&gt; left &#061; robtree(cur-&gt;left);<br \/>\n        vector&lt;int&gt; right &#061; robtree(cur-&gt;right);<br \/>\n        int val1 &#061; cur-&gt;val &#043; left[0] &#043; right[0];<br \/>\n        int val2 &#061; max(left[0], left[1]) &#043; max(right[0], right[1]);<br \/>\n        return {val2, val1};<br \/>\n    }<br \/>\n}; <\/p>\n<p>\u65f6\u95f4\u590d\u6742\u5ea6&#xff1a;O&#xff08;n&#xff09;<\/p>\n<p>\u7a7a\u95f4\u590d\u6742\u5ea6&#xff1a;O&#xff08;logn&#xff09;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9898\u76ee\u94fe\u63a5&#xff1a;198.\u6253\u5bb6\u52ab\u820d<br \/>\n\u89e3\u9898\u601d\u8def&#xff1a;\u52a8\u6001\u89c4\u5212<br \/>\n\u5177\u4f53\u601d\u8def&#xff1a;<br \/>\n\u9996\u5148\u5904\u7406\u8fb9\u754c\u60c5\u51b5&#xff0c;\u82e5\u6570\u7ec4\u4ec5 1 \u4e2a\u5143\u7d20\u5219\u76f4\u63a5\u8fd4\u56de\u8be5\u5143\u7d20\u503c&#xff0c;\u521d\u59cb\u5316\u957f\u5ea6\u4e0e nums \u4e00\u81f4\u7684 dp \u6570\u7ec4 dp[i] \u8868\u793a\u62a2\u52ab\u5230\u7b2c i \u95f4\u623f\u5c4b\u65f6\u80fd\u83b7\u5f97\u7684\u6700\u5927\u91d1\u989d&#xff0c;dp[0] \u8bbe\u4e3a nums[0]&#xff0c;\u7b2c\u4e00\u95f4\u623f\u5c4b\u7684\u91d1\u989d&#xff0c;dp[1]\u8bbe\u4e3a nums[0] \u548c nums[1] \u7684\u6700\u5927\u503c&#xff0c;\u524d\u4e24\u95f4\u623f\u5c4b\u9009\u91d1\u989d<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2692,2865,1813,427],"topic":[],"class_list":["post-78149","post","type-post","status-publish","format-standard","hentry","category-server","tag-leetcode","tag-2865","tag-1813","tag-427"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4ee3\u7801\u968f\u60f3\u5f55\u7b97\u6cd5\u8bad\u7ec3\u8425\u7b2c\u4e09\u5341\u516b\u5929|198.\u6253\u5bb6\u52ab\u820d\u3001213.\u6253\u5bb6\u52ab\u820dII\u3001337.\u6253\u5bb6\u52ab\u820dIII - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/78149.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4ee3\u7801\u968f\u60f3\u5f55\u7b97\u6cd5\u8bad\u7ec3\u8425\u7b2c\u4e09\u5341\u516b\u5929|198.\u6253\u5bb6\u52ab\u820d\u3001213.\u6253\u5bb6\u52ab\u820dII\u3001337.\u6253\u5bb6\u52ab\u820dIII - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u9898\u76ee\u94fe\u63a5&#xff1a;198.\u6253\u5bb6\u52ab\u820d \u89e3\u9898\u601d\u8def&#xff1a;\u52a8\u6001\u89c4\u5212 \u5177\u4f53\u601d\u8def&#xff1a; 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