{"id":126396,"date":"2020-05-11T15:12:48","date_gmt":"2020-05-11T07:12:48","guid":{"rendered":"http:\/\/4563.org\/?p=126396"},"modified":"2020-05-11T15:12:48","modified_gmt":"2020-05-11T07:12:48","slug":"%e5%9c%a8%e5%be%ae%e8%bd%af%e5%81%9a%e4%ba%86%e5%9b%9b%e5%b9%b4%e9%9d%a2%e8%af%95%e5%ae%98%ef%bc%8c%e5%88%86%e4%ba%ab%e4%b8%80%e4%b8%8b%e5%88%b7-leetcode-%e7%9a%84%e6%ad%a3%e7%a1%ae%e5%a7%bf%e5%8a%bf","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=126396","title":{"rendered":"\u5728\u5fae\u8f6f\u505a\u4e86\u56db\u5e74\u9762\u8bd5\u5b98\uff0c\u5206\u4eab\u4e00\u4e0b\u5237 leetcode \u7684\u6b63\u786e\u59ff\u52bf"},"content":{"rendered":"
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\n
\n

\u5728\u5fae\u8f6f\u505a\u4e86\u56db\u5e74\u9762\u8bd5\u5b98\uff0c\u5206\u4eab\u4e00\u4e0b\u5237 leetcode \u7684\u6b63\u786e\u59ff\u52bf <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/i> 13<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u5728\u5fae\u8f6f\u4f5c\u4e86\u4e09\u56db\u5e74\u7684\u9762\u8bd5\u5b98\uff0c\u9762\u8fc7\u51e0\u767e\u4eba\uff0c\u65e9\u5df2\u7ecf\u77e5\u9053\u73b0\u5728\u7684\u5c0f\u670b\u53cb\u559c\u6b22\u5237\u9898\uff0c\u81ea\u7136\u4e0d\u4f1a\u50bb\u5230\u539f\u539f\u672c\u672c\u7684\u53bb\u8003 leetcode \u7684\u539f\u9898\u3002\u6240\u4ee5\u6700\u597d\u4e0d\u8981\u901a\u8fc7\u6b7b\u8bb0\u786c\u80cc\uff0c\u60f3\u8981\u78b0\u5230\u539f\u9898\u6765\u5236\u9738\u9762\u8bd5\u3002<\/p>\n

\u5212\u91cd\u70b9\uff1a\u7f16\u7a0b\u9762\u8bd5\uff0c\u53ea\u6709\u9ad8\u9891\u77e5\u8bc6\u70b9\uff0c\u6ca1\u6709\u6240\u8c13\u7684\u9ad8\u9891\u9898\u3002<\/p>\n

\u4f17\u6240\u5468\u77e5\uff0c\u5fae\u8f6f\u4ee5\u53ca\u8bf8\u591a\u5176\u4ed6\u5927\u5382\u7684\u9762\u8bd5\u7b97\u6cd5\u9898\u4e3b\u8981\u662f\u4ee5 leetcode \u4e3a\u7d20\u6750\u7684\u6539\u7f16\uff0c\u6211\u73b0\u5728\u5206\u4eab\u4e00\u4e9b\u9762\u8bd5\u771f\u9898\u4ee5\u53ca\u6211\u81ea\u5df1\u548c\u540c\u4e8b\u4f5c\u4e3a\u9762\u8bd5\u5b98\u7684\u6539\u7f16\u601d\u8def\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u5230\u8fd8\u5728\u82e6\u6218\u5237\u9898\u7684\u540c\u5b66\u3002\u6211\u4f1a\u5c06\u5927\u90e8\u5206\u7684 leetcode \u539f\u9898\u8fc7\u4e00\u904d\uff0c\u518d\u9644\u4e0a\u9762\u8bd5\u771f\u9898\u7684\u6539\u5199\u601d\u8def\uff0c\u5c3d\u91cf\u8bb2\u5f97\u50bb\u74dc\u3002\u7531\u4e8e\u7bc7\u5e45\u9650\u5236\uff0c\u5728\u8fd9\u91cc\u6211\u53ea\u4e3e\u51e0\u4e2a\u5c0f\u6817\u5b50\uff0c\u66f4\u591a\u9762\u8bd5\u771f\u9898\u548c\u6539\u5199\u5927\u5bb6\u53ef\u4ee5\u5173\u6ce8\u6211\u7684\u4e13\u680f\u6587\u7ae0\u3002<\/p>\n

\u6211\u5c3d\u91cf\u4fdd\u6301\u6bcf\u5468\u4e24\u66f4+\u56de\u590d\u8bc4\u8bba\uff0c\u770b\u540e\u7eed\u7684\u53cd\u9988\u60c5\u51b5\u51b3\u5b9a\u662f\u5426\u6539\u53d8\u66f4\u65b0\u9891\u7387\u4ee5\u53ca\u589e\u51cf\u5206\u4eab\u7684\u5185\u5bb9\uff0c\u6bcf\u6761\u8bc4\u8bba\u56de\u590d\u90fd\u4f1a\u770b\uff0c\u4e5f\u53ef\u4ee5\u52a0\u5fae\u4fe1\u4ea4\u6d41\uff1alongswordMAN\uff0c\u6ce8\u660e V2EX \u7684 id \u5373\u53ef\u3002<\/p>\n

\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014<\/p>\n

\u5e9f\u8bdd\u4e0d\u591a\u8bf4\uff0c\u6b63\u9898\u5f00\u59cb\uff1a<\/p>\n

\u6211\u4eec\u5148\u6765\u770b leetcode \u4e0a\u7b2c 1 \u53f7\u95ee\u9898\uff1aTwo Sum\uff1a<\/p>\n

\u7ed9\u5b9a\u4e00\u4e2a\u6574\u6570\u6570\u7ec4\u548c\u4e00\u4e2a\u76ee\u6807\u503c\uff0c\u627e\u51fa\u6570\u7ec4\u4e2d\u548c\u4e3a\u76ee\u6807\u503c\u7684\u4e24\u4e2a\u6570\u3002<\/p>\n

\u4f60\u53ef\u4ee5\u5047\u8bbe\u6bcf\u4e2a\u8f93\u5165\u53ea\u5bf9\u5e94\u4e00\u79cd\u7b54\u6848\uff0c\u4e14\u540c\u6837\u7684\u5143\u7d20\u4e0d\u80fd\u88ab\u91cd\u590d\u5229\u7528\u3002<\/p>\n

\u793a\u4f8b:<\/p>\n

\u7ed9\u5b9a nums = [2, 7, 11, 15], target = 9<\/p>\n

\u56e0\u4e3a nums[0] + nums[1] = 2 + 7 = 9<\/p>\n

\u6240\u4ee5\u8fd4\u56de [0, 1]<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (47<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5206\u6790\uff1a\u7b80\u5355\u9898\uff0c\u8003\u7684\u662f\u54c8\u5e0c\u8868\uff0c\u66b4\u529b\u4e24\u91cd\u5faa\u73af\u5fc5\u6302\u3002\u73b0\u5728\u7f51\u4e0a\u7684\u5e16\u5b50\u90fd\u559c\u6b22\u548c\u4f60\u8bf4 leetcode \u7b2c XX \u9898 \u662f\u9ad8\u9891\u9898\uff0c\u5176\u5b9e\u90fd\u662f\u61d2\u4eba\u601d\u7ef4\uff0c\u5c5e\u4e8e\u65b0\u624b\u7684\u601d\u7ef4\u8bef\u533a\u3002\u771f\u6b63\u9ad8\u9891\u7684\u662f\u4e00\u4e9b\u7279\u5b9a\u7684\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u6309\u8fd9\u79cd\u201c\u539f\u9898\u7167\u642c\u201d\u601d\u7ef4\uff0c\u9898\u76ee\u7a0d\u5fae\u505a\u4e00\u4e9b\u53d8\u62db\uff0c\u5927\u6982\u7387\u662f\u8981\u9a6c\u5931\u524d\u8e44\u3002<\/p>\n

    \u8fd9\u91cc\u7684\u771f\u6b63\u7684\u9ad8\u9891\u8003\u70b9\u662f\u6570\u636e\u7ed3\u6784\u54c8\u5e0c\u8868\uff0c\u5212\u91cd\u70b9\uff1a\u54c8\u5e0c\u8868\u7684\u5e94\u7528\u9762\u8bd5\u5fc5\u8003\uff0c\u4e00\u5b9a\u4f1a\u4ee5\u67d0\u79cd\u5f62\u5f0f\u5728\u9898\u76ee\u7684\u67d0\u4e00\u90e8\u51fa\u73b0\uff0c\u4ee5\u540e\u8fd8\u4f1a\u8bb2\u5230\u54c8\u5e0c\u8868\u548c\u4e8c\u53c9\u6811\uff0c\u54c8\u5e0c\u8868\u548c\u4e8c\u4f4d\u6570\u7ec4\u7b49\u5176\u4ed6\u6570\u636e\u7ed3\u6784\u7ed3\u5408\u7684\u53d8\u62db\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u9762\u8bd5\u5b98\u6539\u7f16\u601d\u8def\uff1a
    1. \u4e0d\u540c\u7684\u8fd0\u7b97\u89c4\u5219\uff0c\u53ef\u4ee5\u662f\u4e58\u9664\u6cd5\uff0c\u53ef\u4ee5\u53d1\u660e\u4e00\u4e2a\u8fd0\u7b97\u89c4\u5219\u3002
    \u771f\u9898\uff1a
    \u7ed9\u5b9a\u4e00\u4e2a\u6574\u6570\u6570\u7ec4\u548c\u4e00\u4e2a\u76ee\u6807\u503c\uff0c\u627e\u51fa\u6570\u7ec4\u4e2d\u4e58\u79ef\u4e3a\u76ee\u6807\u503c\u7684\u4e24\u4e2a\u6570\u3002<\/p>\n

    \u793a\u4f8b:<\/p>\n

    \u7ed9\u5b9a nums = [2, 7, 11, 15], target = 14<\/p>\n

    \u56e0\u4e3a nums[0] * nums[1] = 2 * 7 = 14
    \u6240\u4ee5\u8fd4\u56de [0, 1]<\/p>\n

    \u5176\u5b9e\u6362\u6c64\u4e0d\u6362\u836f\uff0c\u4e58\u9664\u6cd5\u6ce8\u610f\u8003\u8651\u8fb9\u754c\u60c5\u51b5\u5373\u53ef\uff08\u9664\u4ee5\u96f6\uff09\uff0c\u5982\u679c\u9762\u8bd5\u5b98\u81ea\u5df1\u53d1\u660e\u7684\u8fd0\u7b97\u6cd5\uff1a\u6bd4\u5982\u8fd0\u7b97\u7b26\uff1abla \u7684\u89c4\u5219\u662f: X ‘bla’ Y = X*Y – X -Y \u3002 \u540c\u6837\u7684\uff0c\u67e5\u8868\u89c4\u5219\u6539\u4e00\u4e0b\u800c\u5df2\uff0c\u6362\u6c64\u4e0d\u6362\u836f\uff0c\u6ce8\u610f\u8003\u8651\u8fb9\u754c\u60c5\u51b5 \u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    2. \u6362\u4e00\u4e2a\u6570\u636e\u7ed3\u6784\uff0c\u770b\u9762\u8bd5\u8005\u662f\u5426\u80fd\u591f\u5229\u7528\u89c4\u5219\uff0c\u5728\u65f6\u95f4\u590d\u6742\u5ea6\u4e0a\u8fdb\u4e00\u6b65\u4f18\u5316\u3002<\/p>\n

    \u5f53\u7136\u6709\u5e8f\u6570\u7ec4\u4e5f\u53ef\u4ee5\u6539\u6210\u4e8c\u53c9\u6811\u7b49\u5176\u4ed6\u6570\u636e\u7ed3\u6784\uff0c\u6216\u8005\u662f\u4e00\u4e9b\u5177\u5907\u67d0\u7279\u6027\u7684\u6570\u636e\u7ed3\u6784\u3002\u6709\u5e8f\u6570\u7ec4\u7684\u8bdd\uff0c\u6ce8\u610f\u7528\u4e8c\u5206\u67e5\u627e\uff0c\u53ef\u4ee5\u628a\u65f6\u95f4\u590d\u6742\u5ea6\u964d\u5230 O \uff08 logn \uff09\uff0c\u6ce8\u610f\u54c8\u5e0c\u8868\u7684\u6784\u5efa\u65f6\u95f4\u590d\u6742\u5ea6\u662f O \uff08 n \uff09\uff0c\u80fd\u76f4\u63a5\u7528\u4e8c\u5206\u67e5\u627e\u5c31\u76f4\u63a5\u7528\uff0c\u4e0d\u8981\u8003\u8651\u54c8\u5e0c\u3002<\/p>\n

    \u771f\u9898\uff1a<\/p>\n

    \u7ed9\u5b9a\u4e00\u4e2a\u201c\u62d0\u5f2f\u6570\u7ec4\u201d\uff0c\u7531\u4e24\u4e2a\u6709\u5e8f\u6570\u7ec4\u62fc\u63a5\u800c\u6210\uff0c\u4f46\u4e24\u6570\u7ec4\u5347\u964d\u5e8f\u76f8\u53cd\u3002 \u5982\uff1a[1,2,3] + [6, 5, 4] —> [1,2,3, 6, 5,4]\u3002 \u8981\u6c42\u5728\u62d0\u5f2f\u6570\u7ec4\u4e2d\u627e\u5230\u7ed9\u5b9a\u7684 target \u3002<\/p>\n

    \u8fd9\u9898\u5982\u679c\u7528\u54c8\u5e0c\uff0c\u867d\u7136\u662f O(n)\uff0c\u4f46\u4e0d\u662f\u6700\u4f18\uff0c\u6ca1\u6709\u7528\u5230\u6570\u7ec4\u7684\u7279\u6027\u3002\u6211\u4eec\u5148\u7528\u4e8c\u5206\u6cd5\u627e\u5230\u62d0\u70b9\uff0c\u518d\u5230\u4e24\u4e2a\u6709\u5e8f\u6570\u7ec4\u4e2d\u4e8c\u5206\uff0c\u628a\u590d\u6742\u5ea6\u4f18\u5316\u5230 O \uff08 logn \uff09 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    3. \u53d8\u6210\u591a\u6570\u4e4b\u548c\uff0c\u6bd4\u5982 3 sum \u3002\u8fd9\u6837\u7684\u6539\u5199\u5bb9\u6613\u771f\u9898\uff1a
    \u7ed9\u5b9a\u4e00\u4e2a\u6709\u5e8f\u6574\u6570\u6570\u7ec4\u548c\u4e00\u4e2a\u76ee\u6807\u503c\uff0c\u627e\u51fa\u6570\u7ec4\u548c\u4e3a\u76ee\u6807\u503c\u7684\u4e09\u4e2a\u6570\u3002<\/p>\n

    \u793a\u4f8b:<\/p>\n

    \u7ed9\u5b9a nums = [2, 7, 11, 15], target = 20<\/p>\n

    \u56e0\u4e3a nums[0] + nums[1] + nums[2] = 2 + 7 + 11 = 20
    \u6240\u4ee5\u8fd4\u56de [0, 1, 2] <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u601d\u8def\u7c7b\u4f3c\uff0c\u67e5\u4e24\u6b21\u8868\uff0c\u4f46\u6ce8\u610f\u6392\u9664\u7b2c\u4e00\u4e2a\u6570\uff0c\u6bd4\u5982 2+2+2 \u8fd9\u79cd\u4e00\u4e2a\u6570\u91cd\u590d\u7528\u591a\u6b21\u7684\u60c5\u51b5\u3002<\/p>\n

    \u5f53\u7136\u8fd9\u90fd\u662f\u5bb9\u6613\u7684\uff0c\u5982\u679c\u4e09\u4e2a\u6570\uff0c\u518d\u7ed3\u5408\u7b2c 1 \u6761\u53d8\u5316\uff0c\u67e5\u8868\u6b21\u6570\u4ecd\u7136\u662f\u4e24\u6b21\uff0c\u4f46\u4e0d\u8981\u88ab\u590d\u6742\u7684\u8fd0\u7b97\u641e\u6655\uff0c\u7136\u540e\u6ce8\u610f\u8fb9\u754c\u6761\u4ef6\u5373\u53ef\u3002<\/p>\n

    \u770b\u5b8c\u4e86\u8fd9\u51e0\u4e2a\u6211\u51fa\u7684\u6539\u7f16\u9762\u8bd5\u771f\u9898\uff0c\u4e0d\u77e5\u9053\u770b\u5b98\u4eec\u662f\u5426\u5bf9\u539f\u6765\u7684\u5237\u9898\u65b9\u5f0f\u6709\u6240\u6539\u89c2\u5462\uff1f\u603b\u4e4b\uff0c\u6ca1\u6709\u6240\u8c13\u7684\u9ad8\u9891\u9898\uff0c\u53ea\u6709\u9ad8\u9891\u77e5\u8bc6\u70b9\uff0c\u6211\u4eec\u5237\u9898\u7684\u540c\u65f6\u4e5f\u8981\u52e4\u52a0\u601d\u8003\uff0c\u601d\u8003\u80cc\u540e\u7684\u8003\u5bdf\u77e5\u8bc6\u70b9\uff0c\u751a\u81f3\u53ef\u4ee5\u4f9d\u7167\u6211\u4e0a\u9762\u5206\u4eab\u7684\u6539\u7f16\u601d\u8def\uff0c\u81ea\u5df1\u7ed9\u81ea\u5df1\u51fa\u9898\uff0c\u8fd9\u6837\u624d\u80fd\u628a\u5237\u9898\u7684\u6548\u7387\u6700\u5927\u5316\u3002\u521a\u624d\u8bf4\u7684\u4e09\u7c7b\u53d8\u4f53\uff0c\u672c\u8d28\u4e0a\u90fd\u662f\u5bf9 [\u54c8\u5e0c\u8868] \u8fd9\u4e2a\u77e5\u8bc6\u70b9\u7684\u8003\u5bdf\uff0c\u5982\u679c\u5bf9\u9898\u76ee\u672c\u8eab\u6b7b\u8bb0\u786c\u80cc\uff0c\u800c\u5ffd\u89c6\u77e5\u8bc6\u672c\u8eab\uff0c\u662f\u975e\u5e38\u4f4e\u6548\u7684\u3002\u90a3\u4e48\u54c8\u5e0c\u8868\u8fd9\u4e2a\u6570\u636e\u7ed3\u6784\u7684\u610f\u4e49\u5c31\u5728\u4e8e\uff1a\u53ef\u4ee5\u901a\u8fc7 O \uff08 1 \uff09\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u6765\u67e5\u627e\u5143\u7d20\u662f\u5426\u5b58\u5728\u4e8e\u96c6\u5408\u4e2d\uff0c\u800c\u4e0d\u7528 O \uff08 n \uff09\u6765\u904d\u5386\u67e5\u627e\u3002<\/p>\n

    \u4e0b\u6b21\u66f4\u65b0\u4e00\u4e9b\u65b0\u7684\u771f\u9898\uff0c\u7740\u91cd\u8bf4\u4e00\u4e9b\u5176\u4ed6\u7684\u54c8\u5e0c\u8868\u7684\u9762\u8bd5\u53d8\u62db\uff0c\u4f1a\u7ed3\u5408 leetcode \u539f\u9898\u6765\u8bf4\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : noreplay <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u7b49\u66f4\u65b0\uff0c\u6536\u85cf\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : GromHellscream <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8c22\u8c22\u5206\u4eab\uff0c\u5148\u6536\u85cf\u4e00\u6ce2\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : hdbzsgm <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u662f\u8fd9\u4e2a\u601d\u8def \u6211\u5237\u9898\u559c\u6b22 \u6309\u6a21\u5757\u6765 \u94fe\u8868 \u6570\u7ec4 \u54c8\u5e0c \u6811 \u56fe \u7136\u540e\u518d\u770b\u770b \u5b57\u7b26\u4e32 greedy dp dfs bfs \u7c7b\u4f3c\u53d8\u79cd\u7684\u9898\u5c31\u5dee\u4e0d\u591a\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @hdbzsgm \u540c\u8def\u4e2d\u4eba <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @hdbzsgm \u63e1\u722a <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : basefas <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6240\u4ee5\u8bf4\u4e13\u680f\u5462\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : also24 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @longSwordMan #3
    \u6709\u5e8f\u6570\u7ec4\u7684\u8bdd\uff0c\u53ef\u4ee5\u76f4\u63a5\u53cc\u6307\u9488 O(n) \u89e3\u51b3\u5427<\/p>\n

    [ 1, 2, 3, 5, 8, 9 ], target = 8<\/p>\n

    1+9 = 10 > 8
    1+8 = 9 > 8
    1+5 = 6 < 8
    2+5 = 7 < 8
    3+5 = 8 <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : 27 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @also24 \u53ef\u4ee5\uff0c\u4f46\u662f\u4e5f\u4e0d\u5982\u4e8c\u5206\u7684 O(logn)\u5feb <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : also24 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @longSwordMan #3
    \u5bf9\u4e8e\u6709\u5e8f\u6570\u7ec4\u4e8c\u5206\u67e5\u627e\u7684\u65b9\u6848\uff0c
    \u56e0\u4e3a\u7b2c\u4e00\u4e2a\u6570\u5b57\u8fd8\u662f\u8981\u904d\u5386\u7684\u4e5f\u5c31\u662f O(n) \uff0c
    \u7136\u540e\u67e5\u8be2\u7b2c\u4e8c\u4e2a\u6570\u5b57\u7684\u65f6\u5019\u8d70\u4e8c\u5206\u67e5\u627e\u9700\u8981 O(logn)\uff0c
    \u6240\u4ee5\u5b9e\u9645\u4e0a\u603b\u4f53\u590d\u6742\u5ea6\u662f O(nlogn) \u5427 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : also24 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @27 #13
    \u4e8c\u5206\u67e5\u627e\u4e5f\u9700\u8981\u904d\u5386\u7b2c\u4e00\u4e2a\u6570\u5b57\u7684\u5427\uff0c\u8fd8\u6709\u4e2a O(n) \u5728\u5916\u9762\u54c7 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : eastlhu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u671f\u5f85\u5927\u4f6c\u7684\u4e13\u680f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : WhyLevi <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5e72\u8d27\u62c9\u6ee1 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : xuzywozz <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u591a\u8c22\u5206\u4eab\uff0c\u6536\u85cf\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : yamasa <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u9a6c\u514b <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : yamasa <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6536\u85cf\uff0c\u540e\u9762\u5b66\u4e60 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : zhouwei520 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u671f\u5f85\u4e13\u680f\u6587\u7ae0 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : also24 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @basefas #11
    @eastlhu #16
    @zhouwei520 #21 <\/p>\n

    \u7ffb\u4e86\u4e0b\u77e5\u4e4e\uff0c\u7ffb\u5230\u4e86\u539f\u56de\u7b54\u548c\u4e13\u680f\u5730\u5740\uff1a
    https:\/\/www.zhihu.com\/question\/32019460\/answer\/1268448274
    https:\/\/zhuanlan.zhihu.com\/c_1253290991295655936<\/p>\n

    BTW\uff1a\u770b\u5230\u539f\u56de\u7b54\u4e0b\u9762\u5176\u5b9e\u4e5f\u5728\u8ba8\u8bba\u4e8c\u5206\u67e5\u627e\u89e3\u6cd5\u5b9e\u9645\u4e0a\u662f O(nlogn) \u800c\u4e0d\u662f O(log) \u7684\u4e8b\u513f <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Jooooooooo <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u597d\u5e16\u5b50 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : gzfrankie <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @also24 \u4e8c\u5206\u90a3\u9053\u9898\u662f O(logn)\u554a\uff0c\u90a3\u9053\u9898\u8ddf\u54c8\u5e0c\u662f\u6ca1\u5173\u7cfb\u7684\u3002<\/p>\n

    \u8fd9\u9053\u9898\u66b4\u529b\u89e3\u6cd5\u5c31\u662f O(n)\uff0c\u4ece\u5934\u5230\u5c3e\u626b\u4e00\u6b21\uff0c\u76f4\u5230\u626b\u5230 num[i-1]<num[i] && num[i+1]>num[i+2]\u6210\u7acb\uff0c\u90a3\u4e48 num[i]\u5c31\u662f\u62d0\u70b9\u3002\u6240\u4ee5\u5982\u679c\u4f60\u63d0\u4f9b\u4e00\u4e2a\u6bd4 O(n)\u8fd8\u8981\u6162\u7684\u65b9\u6cd5\uff0c\u4e0d\u662f\u81ea\u4f5c\u591a\u60c5\u4e48\u2026<\/p>\n

    \u4e8c\u5206\u600e\u4e48\u505a\uff1f\u8d77\u59cb\u8303\u56f4\u9009[0..n-1]\uff0ci \u5b9a\u4e3a\u4e2d\u70b9(n-1)\/2<\/p>\n

    \u4e09\u4e2a\u6761\u4ef6\uff1a
    1.\u82e5 num[i-1]<num[i] && num[i+1]>num[i+2]\u6210\u7acb\uff0c\u90a3\u4e48 num[i]\u5c31\u662f\u62d0\u70b9
    2.\u82e5 num[i-1]<num[i] && num[i+1]<num[i+2]\uff0c\u90a3\u4e48\u524d\u534a\u8fb9\u7684\u6570\u53ef\u4ee5\u820d\u5f03\uff0c\u4e8c\u5206\u8303\u56f4\u5b9a\u4e3a[(n-1)\/2, n-1]\uff0c\u7ee7\u7eed\u4e8c\u5206
    3.\u82e5 num[i-1]>num[i] && num[i+1]>num[i+2]\uff0c\u90a3\u4e48\u540e\u534a\u8fb9\u7684\u6570\u53ef\u4ee5\u820d\u5f03\uff0c\u4e8c\u5206\u8303\u56f4\u5b9a\u4e3a[0, (n-1)\/2]\uff0c\u7ee7\u7eed\u4e8c\u5206<\/p>\n

    \u56e0\u4e3a\u6bcf\u6b21\u4e8c\u5206\u90fd\u53ef\u4ee5\u820d\u5f03\u4e00\u534a\u7684\u6570\u4e0d\u7528\u770b\uff0c\u6240\u4ee5\u662f logn \u3002<\/p>\n

    *\u4ee5\u4e0a\u4f2a\u4ee3\u7801\u7b80\u6d01\u8d77\u89c1\u6211\u6ca1\u6709\u8003\u8651\u5404\u79cd\u8fb9\u754c\u6761\u4ef6\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @also24 \u611f\u8c22\u642c\u8fd0\uff0c\u7ed9\u5b9a\u6709\u5e8f\u6570\u7ec4\uff0c\u67e5\u627e\u76ee\u6807\u7684\u60c5\u51b5\u4e0b\u4e8c\u5206\u67e5\u627e\u662f O(logn)\uff0c\u5982\u679c\u8d85\u8fc7 O \uff08 n \uff09\u6ca1\u7406\u7531\u4e0d\u7528\u54c8\u5e0c <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @gzfrankie \u6b63\u89e3 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u665a\u4e9b\u4f1a\u62c9\u7fa4\uff0c\u52a0\u6211\u7684\u4eba\u592a\u591a\u64cd\u4f5c\u4e0d\u8fc7\u6765 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @gzfrankie \u5f81\u7528\u4e00\u4e0b\u54c8\uff0c\u5f88\u591a\u8ddf\u6211\u5e16\u7684\u540c\u5b66\u8fd8\u662f\u4e0d\u61c2 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : gzfrankie <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @longSwordMan \u6ca1\u95ee\u9898\u7684 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : angcz <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5f88\u68d2\u554a \u4e0d\u8fc7\u5728\u8bba\u575b\u8fde\u8f7d\u8fd8\u662f\u6709\u5f88\u591a\u4e0d\u4fbf\u4e4b\u5904 \u6700\u597d\u5f00\u4e2a\u535a\u5ba2\u5427 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : also24 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @gzfrankie #24
    @longSwordMan #25
    \u6211\u77e5\u9053\u4e3a\u4ec0\u4e48\u4f1a\u4ea7\u751f\u8bef\u89e3\u4e86\uff0c\u6211\u4eec\u8bf4\u7684\u538b\u6839\u4e0d\u662f\u540c\u4e00\u9053\u9898\u76ee\u3002<\/p>\n

    \u5982\u4e0b\u56fe\u6240\u793a\uff0c\u6211\u5176\u5b9e\u9488\u5bf9\u7684\u662f\u9ec4\u8272\u90e8\u5206\uff0c\u6211\u6240\u8bf4\u7684\u9898\u76ee\u662f\uff1a
    \u6309\u7167 Two Sum \u7684\u9898\u76ee\u89c4\u5219\uff0c\u5bfb\u627e\u548c\u4e3a target \u7684\u4e24\u4e2a\u6570\uff0c\u4f46\u662f\u5c06\u7ed9\u5b9a\u6570\u7ec4\u6539\u6210\u6709\u5e8f\u6570\u7ec4\u3002
    \u9488\u5bf9\u9ec4\u8272\u90e8\u5206\u8fd9\u9053\u9898\uff0c\u4f7f\u7528\u54c8\u5e0c\u89e3\u6cd5\u548c\u53cc\u6307\u9488\u89e3\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u90fd\u4e3a O(n)\uff0c\u4e8c\u5206\u67e5\u627e\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(nlogn)\u3002<\/p>\n

    \u4f60\u4eec\u5728\u8bf4\u7684\u662f\u9ec4\u8272\u90e8\u5206\u7684\u9898\u76ee\uff0c\u5373\uff1a
    \u9488\u5bf9 \u300e\u62d0\u5f2f\u6570\u7ec4\u300f\uff0c\u5bfb\u627e\u7ed9\u5b9a\u7684 target \u3002
    \u9488\u5bf9\u84dd\u8272\u90e8\u5206\u8fd9\u9053\u9898\uff0c\u4f7f\u7528\u54c8\u5e0c\u89e3\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u662f O(n), \u4e8c\u5206\u67e5\u627e\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(logn)<\/p>\n

    \u987a\u5e26\u63d0\u4e00\u53e5\uff0c\u84dd\u8272\u90e8\u5206\u8fd9\u9053\u9898\uff0c\u5176\u5b9e\u975e\u5e38\u63a5\u8fd1 leetcode \u4e0a\u7684 \u300e\u5c71\u8109\u6570\u7ec4\u4e2d\u67e5\u627e\u76ee\u6807\u503c\u300f\u8fd9\u9053\u9898\uff1a
    https:\/\/leetcode-cn.com\/problems\/find-in-mountain-array\/<\/p>\n

    https:\/\/i.loli.net\/2020\/06\/10\/tVY6dhJgACaQbsP.png <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : also24 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4fee\u6b63 typo -> \u4f60\u4eec\u5728\u8bf4\u7684\u662f\u84dd\u8272\u90e8\u5206\u7684\u9898\u76ee <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @also24 \u662f\u554a\uff0c\u6240\u4ee5\u7b2c\u4e00\u9898\u6211\u6ca1\u7528\u4e8c\u5206\u67e5\u627e\u554a\uff0c\u7528\u4e86\u54c8\u5e0c\uff0c\u8fd9\u4e0d\u662f\u6574\u4e2a\u5e16\u5b50\u8981\u8868\u8fbe\u7684\u4e48\uff1f\u533a\u522b\u5565\u65f6\u5019\u7528\u54c8\u5e0c\u5565\u65f6\u5019\u4e0d\u7528 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : also24 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @longSwordMan #33
    \u9ec4\u8272\u90e8\u5206\u662f\u4f60\u5728 3 \u53d1\u7684\u524d\u534a\u90e8\u5206\uff0c\u88ab\u8bef\u89e3\u6210\u4e86\u5728\u7b2c\u4e00\u9898\u7684\u57fa\u7840\u4e0a\u66ff\u6362\u4e3a\u300e\u6709\u5e8f\u6570\u7ec4\u300f\uff0c\u5176\u5b83\u6761\u4ef6\u4e0d\u53d8\u3002<\/p>\n

    \u77e5\u4e4e\u4e0a\u548c\u4f60\u4e89\u5435\u7684\u90a3\u4f4d\uff0c\u4e5f\u662f\u8fd9\u6837\u7406\u89e3\u4e86\uff0c\u6240\u4ee5\u624d\u4e00\u76f4\u8ba4\u5b9a\u662f O(nlogn) \u7684\u590d\u6742\u5ea6\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @also24 \u662f\u7684\uff0c\u6211\u5176\u5b9e\u5df2\u7ecf\u5728\u8bf4\u7b2c\u4e8c\u9898\u4e86\uff0c\u4f30\u8ba1\u6ca1\u8f6c\u8fc7\u6765\u3002\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : also24 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @longSwordMan #35
    \u56e0\u4e3a\u4f60\u540e\u9762\u5728\u8bf4 \u300e\u6539\u7f16\u601d\u8def\u300f\u561b\uff0c\u800c\u4e14\u6539\u7f16 1 \u3001\u6539\u7f16 3 \u90fd\u662f\u786e\u5b9e\u548c\u539f\u9898\u4e3b\u4f53\u5185\u5bb9\u4e00\u81f4\u7684\u3002
    \u81ea\u7136\u4f1a\u89c9\u5f97\u662f\u6539\u7f16 2 \u4e5f\u662f\u4ece\u539f\u9898\u4e0a\u53d1\u5c55\u800c\u6765\u7684\u3002<\/p>\n

    \u7ed3\u679c\u84dd\u8272\u90e8\u5206\u7684\u6539\u7f16 2\uff0c\u4ece\u9898\u76ee\u5185\u5bb9\u89d2\u5ea6\u6765\u8bf4\uff0c\u5176\u5b9e\u548c Two Sum \u5df2\u7ecf\u5b8c\u5168\u65e0\u5173\u4e86\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @also24 \u662f\u7684\uff0c\u7b2c\u4e00\u7bc7\u7684\u6539\u7f16\u4e0d\u662f\u592a\u597d\uff0c\u4e3b\u8981\u662f\u5e0c\u671b\u4ece\u7b80\u5355\u9898\u5165\u624b\u3002\u540e\u7eed\u53ef\u4ee5\u5173\u6ce8\u6211\u8be5\u7cfb\u5217\u7684\u7b2c\u4e8c\uff0c\u7b2c\u4e09\u7bc7 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : also24 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @longSwordMan #37
    \u55ef\uff0c\u641e\u6e05\u695a\u95ee\u9898\u662f\u600e\u4e48\u51fa\u73b0\u7684\u5c31\u597d\uff0c\u8fd9\u6837\u624d\u66f4\u6709\u610f\u4e49~
    \u8fd8\u662f\u8981\u611f\u8c22\u5206\u4eab~~ <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : chendeshen <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8fd9\u4e2a\u9002\u5408\u5f00\u4e2a\u5fae\u4fe1\u7fa4 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @also24 \u662f\u7684\uff0c\u611f\u8c22\u6307\u51fa\u7f3a\u70b9 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ccvzz <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5728\u5730\u4e0a\u4e5f\u770b\u5230 lz \u4e86\uff0clz \u4e3a\u5565\u540e\u6765\u88ab\u7981\u8a00\u4e86[\u597d\u5947] <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @ccvzz \u6211\u4e5f\u60f3\u77e5\u9053\u3002\u3002\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : shiji <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e3a\u4ec0\u4e48\u6211\u6700\u8fd1\u603b\u770b\u5230\u8fd9\u7bc7\u6587\u7ae0… <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Ahian <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6743\u5a01 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Ahian \u8fc7\u5956\u54c8 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6211\u4eec\u63a5\u7740\u518d\u770b\u4e00\u9898\uff0c\u770b\u4e00\u770b\u600e\u4e48\u53bb\u7528\u52a8\u6001\u89c4\u5212\u7684\u601d\u8def\u6765\u89e3\u9898\u3002<\/p>\n

    \u7ed9\u5b9a\u6574\u6570\u6570\u5217 nums, \u627e\u5230\u8fde\u7eed\u548c\u6700\u5927\u7684\u5b50\u6570\u5217\uff0c\u5e76\u8fd4\u56de\u6570\u5217\u548c\u548c\uff0c\u4f8b\uff1a<\/p>\n

    Input: [-2,1,-3,4,-1,2,1,-5,4],
    Output: 6<\/p>\n

    \u5176\u4e2d[4,-1,2,1]\u52a0\u8d77\u6765\u4e3a 6 \u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8fd8\u662f\u8001\u5957\u8def\uff0c\u4e00\u4e2a\u89d2\u6807\u53d8\u4e24\u4e2a\u89d2\u6807\u800c\u5df2\uff0c\u548c\u4e0a\u9898\u4e00\u6837\uff0c\u66b4\u529b\u4e24\u91cd\u5faa\u73af\u5fc5\u6302\u3002\u90a3\u4e48\u6b63\u786e\u7684\u89e3\u6cd5\u662f\u600e\u6837\u7684\u5462\uff1f\u6211\u4eec\u63a5\u4e0b\u6765\u8bf4\u8fd9\u9053\u9898\u80cc\u540e\u8003\u5bdf\u7684\u8981\u70b9\u548c\u9762\u8bd5\u5b98\u6539\u7f16\u7684\u601d\u8def\u3002<\/p>\n

    \u6211\u4f30\u8ba1\u4e0d\u5c11\u4eba\u9700\u8981 O(n^3)\u624d\u505a\u5f97\u51fa\u6765\uff0c\u5982\u679c\u6211\u544a\u8bc9\u4f60\uff0c\u8fd9\u9898\u7684\u6700\u4f18\u89e3\u6cd5\u662f O(n)\uff0c\u548b\u4e00\u770b\u662f\u4e0d\u662f\u4e0d\u6562\u76f8\u4fe1\uff1f\u6211\u4eec\u8981\u60f3\u4e0d\u53bb\u66b4\u529b\u89e3\uff0c\u5fc5\u987b\u8981\u5934\u8111\u51b7\u9759\u5206\u6790\uff0c\u8fd9\u4e2a\u5b50\u6570\u5217\u7684\u4e00\u4e9b\u7279\u5f81\u3002\u4f5c\u4e3a\u9762\u8bd5\u5b98\uff0c\u5982\u679c\u8fd9\u9898\u9762\u8bd5\u8005\u4e0d\u5047\u601d\u7d22\u5730\u5199\u7b54\u6848\uff0c\u5982\u679c\u8fd8\u5199\u5bf9\u4e86\uff0c\u5341\u6709\u516b\u4e5d\u662f\u80cc\u7b54\u6848\uff0c\u4f9d\u7136\u662f\u4e0d\u7ed9\u8fc7\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n","protected":false},"excerpt":{"rendered":"

    \u5728\u5fae\u8f6f\u505a\u4e86\u56db\u5e74\u9762\u8bd5\u5b98\uff0c\u5206\u4eab\u4e00\u4e0b\u5237 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/126396"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=126396"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/126396\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=126396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=126396"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=126396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}