{"id":396590,"date":"2021-03-11T07:50:10","date_gmt":"2021-03-10T23:50:10","guid":{"rendered":"http:\/\/4563.org\/?p=396590"},"modified":"2021-03-11T07:50:10","modified_gmt":"2021-03-10T23:50:10","slug":"%e5%b9%b2%e8%b4%a7-%e5%be%ae%e8%bd%af%e5%86%85%e9%83%a8%e9%9d%a2%e8%af%95%e9%a2%98","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=396590","title":{"rendered":"[\u5e72\u8d27] \u5fae\u8f6f\u5185\u90e8\u9762\u8bd5\u9898"},"content":{"rendered":"
\n
\n
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[\u5e72\u8d27] \u5fae\u8f6f\u5185\u90e8\u9762\u8bd5\u9898 <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : longSwordMan <\/span> <\/i> 2<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u672c\u4eba\u76ee\u524d\u5728\u5fae\u8f6f\u5e26\u4e86\u4e00\u4e2a\u5f00\u53d1\u56e2\u961f\uff0c\u6211\u4eec team \u4e3b\u8981\u8d1f\u8d23 Search \u8fd9\u5757\uff0c\u5305\u62ec\u4e00\u4e9b NLP\uff0cCV \u7684 model \u3001\u540e\u7aef\u7684 high concurrent\/available \u7684 service\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u5728 MS \u5f53\u4e86\u4e09\u56db\u5e74\u9762\u8bd5\u5b98\u7684\u5de5\u7a0b\u5e08\uff0c\u65e9\u5c31\u5df2\u7ecf\u77e5\u9053\u73b0\u5728\u7684\u5c0f\u670b\u53cb\u559c\u6b22\u5237\u9898\uff0c\u5f53\u65f6\u6211\u4e5f\u662f\u4e1d\u6beb\u6ca1\u6709\u5934\u7eea\uff0c\u4e00\u5934\u57cb\u8fdb leetcode \u7684\u9898\u5e93\u91cc\u5237\u9898\uff0c\u4f46\u662f\u90a3\u4e9b\u5927\u5382\u7684\u9762\u8bd5\u5b98\u4e5f\u4e0d\u662f\u50bb\u5b50\uff0c\u5f53\u7136\u4e0d\u53ef\u80fd\u50bb\u50bb\u7684\u53bb\u8003 leetcode \u7684\u539f\u9898\uff0c\u6240\u4ee5\u6700\u597d\u4e0d\u8981\u6b7b\u8bb0\u786c\u80cc\uff0c\u60f3\u8981\u901a\u8fc7\u9898\u6d77\u6218\u672f\u8fdb\u5165\u5927\u5382\u3002<\/p>\n

\u6211\u4eec\u4f5c\u4e3a\u9762\u8bd5\u5b98\u4e5f\u51fa\u4e86\u5f88\u591a\u9762\u8bd5\u9898\u548c\u6539\u7f16\u9898\u3002\u6211\u4eec\u51e0\u4e2a\u5fae\u8f6f\u3001\u8c37\u6b4c\u7684 leader \u6839\u636e\u6211\u4eec\u4f5c\u4e3a\u9762\u8bd5\u5b98\u7684\u4e00\u624b\u51fa\u9898\u7ecf\u9a8c\uff0c\u603b\u7ed3\u51fa\u4e86\u4e03\u6761\u5fc3\u51b3\uff0c\u4e5f\u5c31\u662f\u4e03\u6761\u7b97\u6cd5\u9898\u7684\u89e3\u9898\u6a21\u677f\uff0c\u6211\u5728\u540e\u9762\u7684\u6587\u5b57\u4f1a\u6162\u6162\u5206\u4eab\u3002<\/p>\n

\u6211\u7684\u5fae\u4fe1\uff1asxxzs3998\uff0c\u6280\u672f\u95ee\u9898\u6b22\u8fce\u4ea4\u6d41\u8ba8\u8bba\uff0c\u5907\u6ce8 V2EX + id \u5373\u53ef\u3002<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (4<\/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
    \u7ed9\u5b9a\u4e00 \u4e92\u4e0d\u76f8\u540c \u7684\u5355\u8bcd\uff0c \u627e\u51fa\u6240\u6709 \u4e0d\u540c \u7684\u7d22\u5f15\u5bf9 (i, j)\uff0c\u4f7f\u5f97\u5217\u8868\u4e2d\u7684\u4e24\u4e2a\u5355\u8bcd\uff0cwords + words[j] \uff0c\u53ef\u62fc\u63a5\u6210\u56de\u6587\u4e32\u3002
    \u8f93\u5165\uff1awords = [“abcd”,”dcba”,”lls”,”s”,”sssll”]
    \u8f93\u51fa\uff1a[[0,1],[1,0],[3,2],[2,4]]
    \u89e3\u91ca\uff1a\u53ef\u62fc\u63a5\u6210\u7684\u56de\u6587\u4e32\u4e3a [“dcbaabcd”,”abcddcba”,”slls”,”llssssll”]<\/p>\n

    \u9898\u76ee\u5206\u6790
    \u5982\u679c\u5b57\u7b26\u4e32 S1 + S2 \u80fd\u6784\u6210\u4e00\u4e2a\u56de\u6587\u4e32\uff0c\u628a S1 \u5206\u6210 S1_1 \u548c S1_2 \u4e24\u90e8\u5206\uff0c\u53ef\u4ee5\u6709\u4ee5\u4e0b\u4ee5\u4e0b\u4e24\u79cd\u62fc\u63a5\u60c5\u51b5\uff1a
    \u2460\uff0e S2 \u62fc\u63a5\u5728\u524d\uff0c\u5e76\u4e14 S1_1 \u662f\u56de\u6587\u4e32\u3001S1_2 \u662f S2 \u7684\u9006\u5e8f\uff1b
    \u2461\uff0e S2 \u62fc\u63a5\u5728\u540e\uff0c\u5e76\u4e14 S1_2 \u662f\u56de\u6587\u4e32\u3001S1_1 \u662f S2 \u7684\u9006\u5e8f\uff1b <\/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
    1.\u66b4\u529b
    \u672c\u9898\u53ef\u4ee5\u60f3\u5230\u66b4\u529b\u505a\u6cd5\uff0c\u6211\u4eec\u679a\u4e3e\u6bcf\u4e00\u5bf9\u5b57\u7b26\u4e32\u7684\u7ec4\u5408\uff0c\u66b4\u529b\u5224\u65ad\u5b83\u4eec\u662f\u5426\u80fd\u591f\u6784\u6210\u56de\u6587\u4e32\u5373\u53ef\u3002\u65f6\u95f4\u590d\u6742\u5ea6 O(n^2times m)O(n^2 \u00d7m)\uff0c\u5176\u4e2d n \u662f\u5b57\u7b26\u4e32\u7684\u6570\u91cf\uff0cm \u662f\u5b57\u7b26\u4e32\u7684\u5e73\u5747\u957f\u5ea6\u3002\u65f6\u95f4\u590d\u6742\u5ea6\u5e76\u4e0d\u7406\u60f3\uff0c\u8003\u8651\u8fdb\u884c\u4f18\u5316\u3002 <\/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.\u679a\u4e3e\u524d\u7f00\u548c\u540e\u7f00
    \u5047\u8bbe\u5b58\u5728\u4e24\u4e2a\u5b57\u7b26\u4e32 s1 \u548c s2\uff0cs1+s2 \u662f\u4e00\u4e2a\u56de\u6587\u4e32\uff0c\u8bb0\u8fd9\u4e24\u4e2a\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u5206\u522b\u4e3a len_1 \u548c len_2\uff0c\u6211\u4eec\u5206\u4e09\u79cd\u60c5\u51b5\u8fdb\u884c\u8ba8\u8bba\uff1a<\/p>\n

    1,len 1=len 2\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0b s_1 \u662f s_2 \u7684\u7ffb\u8f6c\u3002
    2,len1>len2\uff0c\u8fd9\u79cd\u60c5\u51b5\u53ef\u4ee5\u5c06\u662f s1 \u62c6\u6210\u5de6\u53f3\u4e24\u90e8\u5206 t_1 \u548c t_2\uff0c\u5176\u4e2d t_1 \u662f s2 \u7684\u7ffb\u8f6c\uff0ct_2 \u662f\u4e00\u4e2a\u56de\u6587\u4e32\u3002
    \u4e5f\u5c31\u662f\u8bf4\uff0c\u6211\u4eec\u8981\u679a\u4e3e\u5b57\u7b26\u4e32 k \u7684\u6bcf\u4e00\u4e2a\u524d\u7f00\u548c\u540e\u7f00\uff0c\u5224\u65ad\u5176\u662f\u5426\u4e3a\u56de\u6587\u4e32\u3002\u5982\u679c\u662f\u56de\u6587\u4e32\uff0c\u6211\u4eec\u5c31\u67e5\u8be2\u5176\u5269\u4f59\u90e8\u5206\u7684\u7ffb\u8f6c\u662f\u5426\u5728\u7ed9\u5b9a\u7684\u5b57\u7b26\u4e32\u5e8f\u5217\u4e2d\u51fa\u73b0\u5373\u53ef\u3002
    \u6ce8\u610f\u5230\u7a7a\u4e32\u4e5f\u662f\u56de\u6587\u4e32\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5c06 k \u62c6\u89e3\u4e3a k+\u2205 \u6216 \u2205+k\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u80fd\u5c06\u60c5\u51b5 1 \u4e5f\u89e3\u91ca\u4e3a\u7279\u6b8a\u7684\u60c5\u51b5 2 \u6216\u60c5\u51b5 3 \u3002<\/p>\n

    \u800c\u8981\u5b9e\u73b0\u8fd9\u4e9b\u64cd\u4f5c\uff0c\u6211\u4eec\u53ea\u9700\u8981\u8bbe\u8ba1\u4e00\u4e2a\u80fd\u591f\u5728\u4e00\u7cfb\u5217\u5b57\u7b26\u4e32\u4e2d\u67e5\u8be2\u300c\u67d0\u4e2a\u5b57\u7b26\u4e32\u7684\u5b50\u4e32\u7684\u7ffb\u8f6c\u300d\u662f\u5426\u5b58\u5728\u7684\u6570\u636e\u7ed3\u6784\uff0c\u6709\u4e24\u79cd\u5b9e\u73b0\u65b9\u6cd5\uff1a<\/p>\n

    \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5b57\u5178\u6811\u5b58\u50a8\u6240\u6709\u7684\u5b57\u7b26\u4e32\u3002\u5728\u8fdb\u884c\u67e5\u8be2\u65f6\uff0c\u6211\u4eec\u5c06\u5f85\u67e5\u8be2\u4e32\u7684\u5b50\u4e32\u9006\u5e8f\u5730\u5728\u5b57\u5178\u6811\u4e0a\u8fdb\u884c\u904d\u5386\uff0c\u5373\u53ef\u5224\u65ad\u5176\u662f\u5426\u5b58\u5728\u3002<\/p>\n

    \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u54c8\u5e0c\u8868\u5b58\u50a8\u6240\u6709\u5b57\u7b26\u4e32\u7684\u7ffb\u8f6c\u4e32\u3002\u5728\u8fdb\u884c\u67e5\u8be2\u65f6\uff0c\u6211\u4eec\u5224\u65ad\u5e26\u67e5\u8be2\u4e32\u7684\u5b50\u4e32\u662f\u5426\u5728\u54c8\u5e0c\u8868\u4e2d\u51fa\u73b0\uff0c\u5c31\u7b49\u4ef7\u4e8e\u5224\u65ad\u4e86\u5176\u7ffb\u8f6c\u662f\u5426\u5b58\u5728\u3002<\/p>\n

    \u65f6\u95f4\u590d\u6742\u5ea6\uff1aO(n*m^2) )\uff0c\u5176\u4e2d n \u662f\u5b57\u7b26\u4e32\u7684\u6570\u91cf\uff0cm \u662f\u5b57\u7b26\u4e32\u7684\u5e73\u5747\u957f\u5ea6\u3002\u5bf9\u4e8e\u6bcf\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u6211\u4eec\u9700\u8981 O(m^2)\u5730\u5224\u65ad\u5176\u6240\u6709\u524d\u7f00\u4e0e\u540e\u7f00\u662f\u5426\u662f\u56de\u6587\u4e32\uff0c\u5e76 O(m^2)\u5730\u5bfb\u627e\u5176\u6240\u6709\u524d\u7f00\u4e0e\u540e\u7f00\u662f\u5426\u5728\u7ed9\u5b9a\u7684\u5b57\u7b26\u4e32\u5e8f\u5217\u4e2d\u51fa\u73b0\u3002<\/p>\n

    \u7a7a\u95f4\u590d\u6742\u5ea6\uff1aO(n\u00d7m)\uff0c\u5176\u4e2d n \u662f\u5b57\u7b26\u4e32\u7684\u6570\u91cf\uff0cm \u662f\u5b57\u7b26\u4e32\u7684\u5e73\u5747\u957f\u5ea6\u3002\u4e3a\u5b57\u5178\u6811\u7684\u7a7a\u95f4\u5f00\u9500\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
    3.\u5b57\u5178\u6811 + Manacher
    \u6ce8\u610f\u5230\u65b9\u6cd5\u4e00\u4e2d\uff0c\u5bf9\u4e8e\u6bcf\u4e00\u4e2a\u5b57\u7b26\u4e32 k\uff0c\u6211\u4eec\u9700\u8981 O(m^2)\u5730\u5224\u65ad k \u7684\u6240\u6709\u524d\u7f00\u4e0e\u540e\u7f00\u662f\u5426\u662f\u56de\u6587\u4e32\uff0c\u8fd8\u9700\u8981 O(m^2) \u5730\u5224\u65ad k \u7684\u6240\u6709\u524d\u7f00\u4e0e\u540e\u7f00\u662f\u5426\u5728\u7ed9\u5b9a\u5b57\u7b26\u4e32\u5e8f\u5217\u4e2d\u51fa\u73b0\u3002\u6211\u4eec\u53ef\u4ee5\u4f18\u5316\u8fd9\u4e24\u90e8\u5206\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u3002
    \u5bf9\u4e8e\u5224\u65ad\u5176\u6240\u6709\u524d\u7f00\u4e0e\u540e\u7f00\u662f\u5426\u662f\u56de\u6587\u4e32\uff1a
    \u5229\u7528 Manacher \u7b97\u6cd5\uff0c\u53ef\u4ee5\u7ebf\u6027\u5730\u5904\u7406\u51fa\u6bcf\u4e00\u4e2a\u524d\u540e\u7f00\u662f\u5426\u662f\u56de\u6587\u4e32\u3002<\/p>\n

    \u5bf9\u4e8e\u5224\u65ad\u5176\u6240\u6709\u524d\u7f00\u4e0e\u540e\u7f00\u662f\u5426\u5728\u7ed9\u5b9a\u7684\u5b57\u7b26\u4e32\u5e8f\u5217\u4e2d\u51fa\u73b0\uff1a
    \u5bf9\u4e8e\u7ed9\u5b9a\u7684\u5b57\u7b26\u4e32\u5e8f\u5217\uff0c\u5206\u522b\u6b63\u5411\u4e0e\u53cd\u5411\u5efa\u7acb\u5b57\u5178\u6811\uff0c\u5229\u7528\u6b63\u5411\u5efa\u7acb\u7684\u5b57\u5178\u6811\u9a8c\u8bc1 k \u7684\u540e\u7f00\u7684\u7ffb\u8f6c\uff0c\u5229\u7528\u53cd\u5411\u5efa\u7acb\u7684\u5b57\u5178\u6811\u9a8c\u8bc1 k \u7684\u524d\u7f00\u7684\u7ffb\u8f6c\u3002<\/p>\n

    \u4e0d\u61c2\u7684\u540c\u5b66\u53ef\u4ee5\u53bb\u641c\u4e00\u4e0b Manacher \u7b97\u6cd5\uff0c\u8fd9\u4e2a\u7b97\u6cd5\u5728\u5904\u7406\u56de\u6587\u4e32\u65b9\u9762\u53ef\u4ee5\u628a\u539f\u6765 n^2 \u7684\u590d\u6742\u5ea6\u53d8\u6210\u7ebf\u6027\u7684<\/p>\n

    \u6211\u4eec\u89e3\u9898\u7684\u65f6\u5019\u4e00\u5b9a\u8981\u60f3\u4e00\u4e0b\u6700\u4f18\u89e3\uff0c\u4e0d\u7136\u53ef\u80fd\u8ba9\u6211\u4eec\u5c31\u7b97\u505a\u51fa\u6765\u4e86\u8fd9\u9053\u9898\u53ef\u80fd\u4e5f\u5f97\u4e0d\u4e86\u9ad8\u5206 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

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

    [\u5e72\u8d27] \u5fae\u8f6f\u5185\u90e8\u9762\u8bd5\u9898 \u8cc7\u6df1\u5927\u4f6c…<\/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\/396590"}],"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=396590"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/396590\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=396590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=396590"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=396590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}