{"id":1029,"date":"2025-12-24T04:28:57","date_gmt":"2025-12-23T20:28:57","guid":{"rendered":"https:\/\/www.guanhaobo.cn\/?p=1029"},"modified":"2025-12-24T04:28:57","modified_gmt":"2025-12-23T20:28:57","slug":"leetcode-198-%e6%89%93%e5%ae%b6%e5%8a%ab%e8%88%8d","status":"publish","type":"post","link":"https:\/\/www.guanhaobo.cn\/?p=1029","title":{"rendered":"LeetCode 198 \u2013 \u6253\u5bb6\u52ab\u820d"},"content":{"rendered":"

\u9898\u76ee\u63cf\u8ff0<\/h1>\n

\u4f60\u662f\u4e00\u4e2a\u4e13\u4e1a\u7684\u5c0f\u5077\uff0c\u8ba1\u5212\u5077\u7a83\u6cbf\u8857\u7684\u623f\u5c4b\u3002\u6bcf\u95f4\u623f\u5185\u90fd\u85cf\u6709\u4e00\u5b9a\u7684\u73b0\u91d1\uff0c\u5f71\u54cd\u4f60\u5077\u7a83\u7684\u552f\u4e00\u5236\u7ea6\u56e0\u7d20\u5c31\u662f\u76f8\u90bb\u7684\u623f\u5c4b\u88c5\u6709\u76f8\u4e92\u8fde\u901a\u7684\u9632\u76d7\u7cfb\u7edf\uff0c\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\u3002
\n\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 \u4e0d\u89e6\u52a8\u8b66\u62a5\u88c5\u7f6e\u7684\u60c5\u51b5\u4e0b \uff0c\u4e00\u591c\u4e4b\u5185\u80fd\u591f\u5077\u7a83\u5230\u7684\u6700\u9ad8\u91d1\u989d\u3002<\/p>\n

\u793a\u4f8b\uff1a
\n\u8f93\u5165\uff1a[1,2,3,1]
\n\u8f93\u51fa\uff1a4
\n\u89e3\u91ca\uff1a\u5077\u7a83 1 \u53f7\u623f\u5c4b (\u91d1\u989d = 1) \uff0c\u7136\u540e\u5077\u7a83 3 \u53f7\u623f\u5c4b (\u91d1\u989d = 3)\u3002\u5077\u7a83\u5230\u7684\u6700\u9ad8\u91d1\u989d = 1 + 3 = 4 \u3002<\/p>\n

\u9898\u76ee\u5206\u6790<\/h1>\n

\u52a8\u6001\u89c4\u5212
\n\u8bbe\u524d i \u4e2a\u7684\u6700\u9ad8\u5077\u7a83\u91d1\u989d\u4e3a ans[i]\uff0c\u5219\u5bf9\u4e8e\u6bcf\u4e2a\u623f\u95f4\u90fd\u6709
\n– \u9009\u62e9\u5f53\u524d\u623f\u95f4\uff0c ans[i] = ans[i – 2] + nums[i]
\n– \u4e0d\u9009\u62e9\u5f53\u524d\u623f\u95f4\uff0cans[i] = ans[i – 1]<\/p>\n

\u5728\u8fd9\u4e24\u4e2a\u503c\u4e2d\u95f4\u53d6\u6700\u5927\u503c\u5373\u53ef\u3002<\/p>\n

Java<\/h1>\n
public int rob(int[] nums) {\n    int[] ans = new int[nums.length];\n    ans[0] = nums[0];\n    if (nums.length > 1) {\n        ans[1] = Math.max(nums[0], nums[1]);\n    }\n    for (int i = 2; i < nums.length; i++) {\n        ans[i] = Math.max(ans[i - 1], ans[i - 2] + nums[i]);\n    }\n    return ans[nums.length - 1];\n}\n<\/code><\/pre>\n
Kotlin<\/h1>\n
fun rob(nums: IntArray): Int {\n    val ans = IntArray(nums.size)\n    ans[0] = nums[0]\n    if (nums.size > 1) {\n        ans[1] = max(nums[0], nums[1])\n    }\n    for (i in 2 until nums.size) {\n        ans[i] = max(ans[i - 1], ans[i - 2] + nums[i])\n    }\n    return ans.last()\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u9898\u76ee\u63cf\u8ff0 \u4f60\u662f\u4e00\u4e2a\u4e13\u4e1a\u7684\u5c0f\u5077\uff0c\u8ba1\u5212\u5077\u7a83\u6cbf\u8857\u7684\u623f\u5c4b\u3002\u6bcf\u95f4\u623f\u5185\u90fd\u85cf\u6709\u4e00\u5b9a\u7684\u73b0\u91d1\uff0c\u5f71\u54cd\u4f60\u5077\u7a83\u7684\u552f\u4e00\u5236\u7ea6\u56e0\u7d20\u5c31\u662f\u76f8\u90bb\u7684 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[20,40],"class_list":["post-1029","post","type-post","status-publish","format-standard","hentry","category-algo","tag-leetcode","tag-40"],"_links":{"self":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/1029","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1029"}],"version-history":[{"count":1,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/1029\/revisions"}],"predecessor-version":[{"id":1030,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=\/wp\/v2\/posts\/1029\/revisions\/1030"}],"wp:attachment":[{"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.guanhaobo.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}