{"id":2397,"date":"2022-01-26T10:46:28","date_gmt":"2022-01-26T02:46:28","guid":{"rendered":"http:\/\/139.9.1.231\/?p=2397"},"modified":"2022-01-26T10:46:29","modified_gmt":"2022-01-26T02:46:29","slug":"leetcodeday80","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2022\/01\/26\/leetcodeday80\/","title":{"rendered":"leetcodeday80 –\u5220\u9664\u6709\u5e8f\u6570\u7ec4\u4e2d\u7684\u91cd\u590d\u9879 II"},"content":{"rendered":"\n

\u7ed9\u4f60\u4e00\u4e2a\u6709\u5e8f\u6570\u7ec4 nums<\/code> \uff0c\u8bf7\u4f60 \u539f\u5730<\/a><\/strong> \u5220\u9664\u91cd\u590d\u51fa\u73b0\u7684\u5143\u7d20\uff0c\u4f7f\u6bcf\u4e2a\u5143\u7d20 \u6700\u591a\u51fa\u73b0\u4e24\u6b21<\/strong> \uff0c\u8fd4\u56de\u5220\u9664\u540e\u6570\u7ec4\u7684\u65b0\u957f\u5ea6\u3002<\/p>\n\n\n\n

\u4e0d\u8981\u4f7f\u7528\u989d\u5916\u7684\u6570\u7ec4\u7a7a\u95f4\uff0c\u4f60\u5fc5\u987b\u5728 \u539f\u5730 <\/a>\u4fee\u6539\u8f93\u5165\u6570\u7ec4 <\/strong>\u5e76\u5728\u4f7f\u7528 O(1) \u989d\u5916\u7a7a\u95f4\u7684\u6761\u4ef6\u4e0b\u5b8c\u6210\u3002<\/p>\n\n\n\n

\u8bf4\u660e\uff1a<\/strong><\/p>\n\n\n\n

\u4e3a\u4ec0\u4e48\u8fd4\u56de\u6570\u503c\u662f\u6574\u6570\uff0c\u4f46\u8f93\u51fa\u7684\u7b54\u6848\u662f\u6570\u7ec4\u5462\uff1f<\/p>\n\n\n\n

\u8bf7\u6ce8\u610f\uff0c\u8f93\u5165\u6570\u7ec4\u662f\u4ee5\u300c\u5f15\u7528\u300d<\/strong>\u65b9\u5f0f\u4f20\u9012\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5728\u51fd\u6570\u91cc\u4fee\u6539\u8f93\u5165\u6570\u7ec4\u5bf9\u4e8e\u8c03\u7528\u8005\u662f\u53ef\u89c1\u7684\u3002<\/p>\n\n\n\n

\u4f60\u53ef\u4ee5\u60f3\u8c61\u5185\u90e8\u64cd\u4f5c\u5982\u4e0b:<\/p>\n\n\n\n

\/\/ nums<\/strong> \u662f\u4ee5\u201c\u5f15\u7528\u201d\u65b9\u5f0f\u4f20\u9012\u7684\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u4e0d\u5bf9\u5b9e\u53c2\u505a\u4efb\u4f55\u62f7\u8d1d\nint len = removeDuplicates(nums);\n\n\/\/ \u5728\u51fd\u6570\u91cc\u4fee\u6539\u8f93\u5165\u6570\u7ec4\u5bf9\u4e8e\u8c03\u7528\u8005\u662f\u53ef\u89c1\u7684\u3002\n\/\/ \u6839\u636e\u4f60\u7684\u51fd\u6570\u8fd4\u56de\u7684\u957f\u5ea6, \u5b83\u4f1a\u6253\u5370\u51fa\u6570\u7ec4\u4e2d \u8be5\u957f\u5ea6\u8303\u56f4\u5185<\/strong> \u7684\u6240\u6709\u5143\u7d20\u3002\nfor (int i = 0; i < len; i++) {\n    print(nums[i]);\n}<\/code><\/pre>\n\n\n\n
\u793a\u4f8b 1\uff1a<\/strong><\/p>\n\n\n\n
\u8f93\u5165\uff1a<\/strong>nums = [1,1,1,2,2,3]\n\u8f93\u51fa\uff1a<\/strong>5, nums = [1,1,2,2,3]\n\u89e3\u91ca\uff1a<\/strong>\u51fd\u6570\u5e94\u8fd4\u56de\u65b0\u957f\u5ea6 length = 5<\/code><\/strong>, \u5e76\u4e14\u539f\u6570\u7ec4\u7684\u524d\u4e94\u4e2a\u5143\u7d20\u88ab\u4fee\u6539\u4e3a 1, 1, 2, 2,<\/code><\/strong> 3 <\/strong>\u3002 \u4e0d\u9700\u8981\u8003\u8651\u6570\u7ec4\u4e2d\u8d85\u51fa\u65b0\u957f\u5ea6\u540e\u9762\u7684\u5143\u7d20\u3002<\/code><\/pre>\n\n\n\n
<\/p>\n\n\n\n
# @lc app=leetcode.cn id=80 lang=python3\r\n#\r\n# [80] \u5220\u9664\u6709\u5e8f\u6570\u7ec4\u4e2d\u7684\u91cd\u590d\u9879 II\r\n#\r\n\r\n# @lc code=start\r\nclass Solution:\r\n    def removeDuplicates(self, nums: List[int]) -> int:\r\n        j = 2\r\n        for i in range(2, len(nums)):\r\n            if nums[i] != nums[j - 2]:\r\n                nums[j] = nums[i]\r\n                j += 1\r\n        return j<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"
\u7ed9\u4f60\u4e00\u4e2a\u6709\u5e8f\u6570\u7ec4 nums \uff0c\u8bf7\u4f60 \u539f\u5730 \u5220\u9664\u91cd\u590d\u51fa\u73b0\u7684\u5143\u7d20\uff0c\u4f7f\u6bcf\u4e2a\u5143 … \u7ee7\u7eed\u9605\u8bfbleetcodeday80 –\u5220\u9664\u6709\u5e8f\u6570\u7ec4\u4e2d\u7684\u91cd\u590d\u9879 II<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/2397"}],"collection":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/comments?post=2397"}],"version-history":[{"count":1,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/2397\/revisions"}],"predecessor-version":[{"id":2399,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/2397\/revisions\/2399"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=2397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=2397"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=2397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}