{"id":1560,"date":"2023-06-27T13:54:14","date_gmt":"2023-06-27T05:54:14","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=1560"},"modified":"2023-06-27T13:54:14","modified_gmt":"2023-06-27T05:54:14","slug":"%e3%80%90%e7%ae%97%e6%b3%95%e9%a2%98%e8%a7%a3%e3%80%915-%e5%88%a0%e9%99%a4%e6%9c%89%e5%ba%8f%e6%95%b0%e7%bb%84%e4%b8%ad%e7%9a%84%e9%87%8d%e5%a4%8d%e9%a1%b9-%e7%a7%bb%e5%8a%a8%e9%9b%b6","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/%e7%ae%97%e6%b3%95\/%e3%80%90%e7%ae%97%e6%b3%95%e9%a2%98%e8%a7%a3%e3%80%915-%e5%88%a0%e9%99%a4%e6%9c%89%e5%ba%8f%e6%95%b0%e7%bb%84%e4%b8%ad%e7%9a%84%e9%87%8d%e5%a4%8d%e9%a1%b9-%e7%a7%bb%e5%8a%a8%e9%9b%b6\/","title":{"rendered":"\u3010\u7b97\u6cd5\u9898\u89e3\u30115. \u5220\u9664\u6709\u5e8f\u6570\u7ec4\u4e2d\u7684\u91cd\u590d\u9879 + \u79fb\u52a8\u96f6"},"content":{"rendered":"
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\u5220\u9664\u6709\u5e8f\u6570\u7ec4\u4e2d\u7684\u91cd\u590d\u9879 <\/span><\/h2>\n
\u9898\u76ee<\/span>
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\u7ed9\u4f60\u4e00\u4e2a \u5347\u5e8f\u6392\u5217 \u7684\u6570\u7ec4 nums \uff0c\u8bf7\u4f60\u539f\u5730\u5220\u9664\u91cd\u590d\u51fa\u73b0\u7684\u5143\u7d20\uff0c\u4f7f\u6bcf\u4e2a\u5143\u7d20\u53ea\u51fa\u73b0\u4e00\u6b21 \uff0c\u8fd4\u56de\u5220\u9664\u540e\u6570\u7ec4\u7684\u65b0\u957f\u5ea6\u3002\u5143\u7d20\u7684\u76f8\u5bf9\u987a\u5e8f\u5e94\u8be5\u4fdd\u6301 \u4e00\u81f4 \u3002<\/p>\n


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\u7531\u4e8e\u5728\u67d0\u4e9b\u8bed\u8a00\u4e2d\u4e0d\u80fd\u6539\u53d8\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u6240\u4ee5\u5fc5\u987b\u5c06\u7ed3\u679c\u653e\u5728\u6570\u7ec4 nums \u7684\u7b2c\u4e00\u90e8\u5206\u3002\u66f4\u89c4\u8303\u5730\u8bf4\uff0c\u5982\u679c\u5728\u5220\u9664\u91cd\u590d\u9879\u4e4b\u540e\u6709 k \u4e2a\u5143\u7d20\uff0c\u90a3\u4e48 nums \u7684\u524d k \u4e2a\u5143\u7d20\u5e94\u8be5\u4fdd\u5b58\u6700\u7ec8\u7ed3\u679c\u3002<\/p>\n


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\u5c06\u6700\u7ec8\u7ed3\u679c\u63d2\u5165 nums \u7684\u524d k \u4e2a\u4f4d\u7f6e\u540e\u8fd4\u56de k \u3002<\/p>\n


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

https:\/\/leetcode.cn\/submissions\/detail\/391150657\/<\/span><\/section>\n<\/blockquote>\n

<\/section>\n

\u89e3\u9898\u601d\u8def<\/span><\/span><\/p>\n

1. \u65b0\u5efa\u4e00\u4e2a\u53d8\u91cf<\/span>index\uff0c<\/span>\u7528\u6765\u5b58\u50a8\u975e\u91cd\u590d\u5143\u7d20\u4e0b\u6807\uff0c\u4e5f\u5c31\u662f\u66f4\u65b0\u540e\u7684\u6570\u7ec4\u7684\u4e0b\u6807\u3002<\/span><\/section>\n
2. \u9996\u5148\u53ef\u4ee5\u80af\u5b9a\u7684\u662f\u7b2c\u4e00\u4e2a\u5143\u7d20\u80af\u5b9a\u662f\u53ef\u4ee5\u4fdd\u7559\u7684\uff0c\u6240\u4ee5\u4ee5 index = 1 \u5f00\u59cb\uff0c\u7136\u540e\u4ece i = 1 \u5f00\u59cb\u904d\u5386\u6574\u4e2a\u6570\u7ec4\uff0c\u5f53\u7b2c i \u4e2a\u5143\u7d20\u548c\u5b83\u524d\u9762\u7684\u5143\u7d20\uff08i - 1\uff09\u4e0d\u4e00\u6837\u7684\u65f6\u5019\uff0c\u5373\u7b2c i \u4e2a\u5143\u7d20\u662f\u4e00\u4e2a\u65b0\u7684\u975e\u91cd\u590d\u6570\uff0c\u53ef\u4ee5\u653e\u5230\u65b0\u7684\u6570\u7ec4\uff0c\u5373nums[index] = nums[i]\uff0c\u8d4b\u503c\u5b8c\u6210\u540e\u5c06index + 1\u3002<\/span><\/section>\n

3. \u6700\u540e\u8fd4\u56de index \u4e3a\u975e\u91cd\u590d\u6570\u7684\u4e2a\u6570\uff0c\u975e\u91cd\u590d\u6570\u7684\u4e0b\u6807\u4e3a 0 \uff5e (index - 1)\u3002<\/span><\/p>\n


<\/section>\n
\u56fe\u793a\uff1a\u4ee5\u6570\u7ec4int[] {1, 2, 2, 3, 4, 4}\u4e3a\u4f8b\u3002<\/span><\/section>\n

<\/span><\/section>\n

<\/span><\/p>\n

\u4ee3\u7801\u5b9e\u73b0<\/span><\/p>\n

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    class<\/span> Solution<\/span> {<\/span><\/code>    public<\/span> int<\/span> removeDuplicates<\/span>(int<\/span>[] nums<\/span>)<\/span> {<\/span><\/code>        int<\/span> index = 1<\/span>;<\/span><\/code>        for<\/span>(int<\/span> i = 1<\/span>; i < nums.length; i++){<\/span><\/code>            if<\/span>(nums[i] != nums[i - 1<\/span>]){<\/span><\/code>                nums[index++] = nums[i];<\/span><\/code>            }<\/span><\/code>        }        <\/span><\/code>        return<\/span> index;<\/span><\/code>    }<\/span><\/code>}<\/span><\/code><\/pre>\n<\/section>\n

    <\/section>\n
    \u590d\u6742\u5ea6\u5206\u6790<\/span><\/p>\n
    \u65f6\u95f4\u590d\u6742\u5ea6 O(n)\uff1an \u4e3a\u6570\u7ec4 nums \u7684\u957f\u5ea6\u3002<\/span><\/p>\n
    \u7a7a\u95f4\u590d\u6742\u5ea6 O(1)\u3002<\/span><\/p>\n
    <\/span>
    <\/section>\n
    \u79fb\u52a8\u96f6<\/span><\/h2>\n
    \u9898\u76ee<\/span><\/p>\n
    \n
    \n
    \n
    \u7ed9\u5b9a\u4e00\u4e2a\u6570\u7ec4 nums\uff0c\u7f16\u5199\u4e00\u4e2a\u51fd\u6570\u5c06\u6240\u6709 0 \u79fb\u52a8\u5230\u6570\u7ec4\u7684\u672b\u5c3e\uff0c\u540c\u65f6\u4fdd\u6301\u975e\u96f6\u5143\u7d20\u7684\u76f8\u5bf9\u987a\u5e8f\u3002<\/p>\n
    \u8bf7\u6ce8\u610f \uff0c\u5fc5\u987b\u5728\u4e0d\u590d\u5236\u6570\u7ec4\u7684\u60c5\u51b5\u4e0b\u539f\u5730\u5bf9\u6570\u7ec4\u8fdb\u884c\u64cd\u4f5c<\/p>\n<\/section>\n<\/section>\n
    https:\/\/leetcode.cn\/submissions\/detail\/391179512\/<\/span><\/section>\n<\/blockquote>\n

    <\/section>\n
    \u89e3\u9898\u601d\u8def<\/span><\/p>\n
    \u5220\u9664\u4e3a0\u7684\u5143\u7d20\uff0c\u5c06\u6240\u6709\u975e0\u5143\u7d20\u6309\u539f\u987a\u5e8f\u6392\u5217\u597d,  \u5269\u4e0b\u7684\u4f4d\u7f6e\u88650\u3002<\/span><\/p>\n

    <\/span><\/p>\n
    \u4ee3\u7801\u5b9e\u73b0<\/span><\/span><\/p>\n
    \n
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      class<\/span> Solution<\/span> {<\/span><\/code>    public<\/span> void<\/span> moveZeroes<\/span>(int<\/span>[] nums<\/span>)<\/span> {<\/span><\/code>        \/\/ \u5220\u9664\u4e3a0\u7684\u5143\u7d20\uff0c\u5e76\u6309\u7167\u539f\u987a\u5e8f\u6392\u5217\u3002<\/span><\/span><\/code>        int<\/span> index = 0<\/span>;<\/span><\/code>        for<\/span>(int<\/span> i = 0<\/span>; i < nums.length; i++){<\/span><\/code>            if<\/span>(nums[i] != 0<\/span>){<\/span><\/code>                nums[index++] = nums[i];<\/span><\/code>            }<\/span><\/code>        }<\/span><\/code>        \/\/ \u5982\u679c\u8fd8\u6709\u5269\u4f59\u7684\u4f4d\u7f6e\uff0c\u5168\u90e8\u88650<\/span><\/span><\/code>        if<\/span>(index < nums.length){<\/span><\/code>            for<\/span>(int<\/span> i = index; i < nums.length; i++){<\/span><\/code>                nums[i] = 0<\/span>;<\/span><\/code>            }<\/span><\/code>        }<\/span><\/code>    }<\/span><\/code>}<\/span><\/code><\/pre>\n<\/section>\n

      <\/section>\n
      \u590d\u6742\u5ea6\u5206\u6790<\/span><\/p>\n
      \u65f6\u95f4\u590d\u6742\u5ea6 O(n)\u3002<\/span><\/p>\n
      \u7a7a\u95f4\u590d\u6742\u5ea6 O(1)\u3002<\/span><\/p>\n
      <\/mp-style-type><\/p>\n
      \n
      \u672c\u7bc7\u6587\u7ae0\u6765\u6e90\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7:                 i\u4f59\u6570              <\/p>\n<\/blockquote>\n<\/div>\n","raw":"","protected":false},"excerpt":{"rendered":"
      \u5220\u9664\u6709\u5e8f\u6570\u7ec4\u4e2d\u7684\u91cd\u590d\u9879  \u9898\u76ee \u7ed9\u4f60\u4e00\u4e2a \u5347\u5e8f\u6392\u5217 \u7684\u6570\u7ec4 nums \uff0c\u8bf7\u4f60\u539f\u5730\u5220\u9664\u91cd\u590d\u51fa\u73b0\u7684\u5143\u7d20\uff0c\u4f7f\u6bcf\u4e2a\u5143\u7d20\u53ea\u51fa\u73b0\u4e00\u6b21 …<\/p>\n","protected":false},"author":1,"featured_media":1558,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[22],"tags":[],"class_list":["post-1560","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-22"],"post_thumbnail_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528043657417-150x150.jpeg","content_first_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528043658882.png","post_medium_image_300":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528043657417-300x128.jpeg","post_thumbnail_image_624":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528043657417.jpeg","post_frist_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528043658882.png","post_medium_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528043657417-300x128.jpeg","post_large_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528043657417.jpeg","post_full_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528043657417.jpeg","post_all_images":[{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528043658882.png","id":"image0"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528043658882.png","id":"image1"}],"videoAdId":"","listAd":"0","listAdId":"","listAdEvery":6,"total_comments":0,"category_name":"\u7b97\u6cd5","post_date":"2023-06-27","like_count":"0","praiseWord":"\u9f13\u52b1","copyright_state":"","excitationAd":"0","rewardedVideoAdId":"","detailAdId":"","detailAd":"0","enterpriseMinapp":"0","audios":[],"postImageUrl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230519082947553.jpg","avatarurls":[],"related_posts":null,"pageviews":211,"next_post_id":2484,"next_post_title":"Java\u4e2d\u5c06 int[] \u6570\u7ec4 \u8f6c\u6362\u4e3a List\uff08ArrayList\uff09","previous_post_id":1489,"previous_post_title":"\u3010\u7b97\u6cd5\u9898\u89e3\u301114. \u6709\u6548\u7684\u62ec\u53f7","_links":{"self":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/1560","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1560"}],"version-history":[{"count":0,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/1560\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media\/1558"}],"wp:attachment":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1560"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1560"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}