{"id":122282,"date":"2026-11-04T15:24:42","date_gmt":"2026-11-04T07:24:42","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/122282.html"},"modified":"2026-11-04T15:24:42","modified_gmt":"2026-11-04T07:24:42","slug":"%e6%89%93%e5%8d%a1%e4%bf%a1%e5%a5%a5%e5%88%b7%e9%a2%98%ef%bc%883671%ef%bc%89%e7%94%a8c%e5%ae%9e%e7%8e%b0%e4%bf%a1%e5%a5%a5%e9%a2%98-p12238-%e8%93%9d%e6%a1%a5%e6%9d%af-2023-%e5%9b%bd-java-a","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/122282.html","title":{"rendered":"\u6253\u5361\u4fe1\u5965\u5237\u9898\uff083671\uff09\u7528C++\u5b9e\u73b0\u4fe1\u5965\u9898 P12238 [\u84dd\u6865\u676f 2023 \u56fd Java A] \u5355\u8bcd\u5206\u7c7b"},"content":{"rendered":"

\/* MD \/ \u5bcc\u6587\u672c\u4e2d\u7684 .toc\uff08\u542b\u535a\u5ba2\u56ed\u642c\u5bb6\u7b49\u5d4c\u5957\u7ed3\u6784\uff09\uff1b.toc-box \u5728\u4fa7\u680f\uff0c\u4e0d\u53d7\u5f71\u54cd *\/
\n #content_views .toc,
\n \/* \u7f16\u8f91\u5668\u5e38\u5728\u76ee\u5f55\u524d\u540e\u63d2\u5165\u7a7a p\uff08:empty \u4ecd\u5360 20px\uff09\uff0c\u4e00\u5e76\u53bb\u6389\u907f\u514d\u9876\u7a7a\u9699 *\/
\n #content_views.markdown_views > p:empty:has(+ .toc),
\n #content_views.markdown_views > .toc + p:empty,
\n \/* \u5bcc\u6587\u672c\u65e7\u7248\u76ee\u5f55\u6807\u8bb0 *\/
\n #content_views.htmledit_views #main-toc,
\n #content_views.htmledit_views #hr-toc,
\n #content_views.htmledit_views p[id*=\\”-toc\\”] {
\n display: none !important;
\n }
\n \/* \u76ee\u5f55\u53bb\u6389\u540e\uff0c\u7d27\u8ddf\u7684\u9996\u4e2a\u6807\u9898\u4e0d\u518d\u591a\u51fa\u4e00\u5757\u4e0a\u8fb9\u8ddd *\/
\n #content_views.markdown_views > .toc + h1,
\n #content_views.markdown_views > .toc + h2,
\n #content_views.markdown_views > .toc + h3,
\n #content_views.markdown_views > .toc + h4,
\n #content_views.markdown_views > .toc + p:empty + h1,
\n #content_views.markdown_views > .toc + p:empty + h2,
\n #content_views.markdown_views > .toc + p:empty + h3,
\n #content_views.markdown_views > .toc + p:empty + h4 {
\n margin-top: 0 !important;
\n }<\/p>\n

P12238 [\u84dd\u6865\u676f 2023 \u56fd Java A] \u5355\u8bcd\u5206\u7c7b<\/h2>\n

\u9898\u76ee\u63cf\u8ff0<\/h3>\n

\u5728\u9065\u8fdc\u7684 LQ \u56fd，\u53ea\u5b58\u5728\u4e09\u79cd\u5b57\u7b26：l\\\\tt{l}<\/span><\/span>l<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3001q\\\\tt{q}<\/span><\/span>q<\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u548c b\\\\tt{b}<\/span><\/span>b<\/span><\/span><\/span><\/span><\/span><\/span><\/span>（ASCII \u7801\u5206\u522b\u4e3a 108108<\/span><\/span>108<\/span><\/span><\/span><\/span><\/span>\u3001113113<\/span><\/span>113<\/span><\/span><\/span><\/span><\/span>\u30019898<\/span><\/span>98<\/span><\/span><\/span><\/span><\/span>），\u6240\u6709\u7684\u5355\u8bcd\u90fd\u7531\u8fd9\u4e09\u79cd\u5b57\u7b26\u7ec4\u5408\u800c\u6765\u3002\u5c0f\u84dd\u4e3a\u4e86\u66f4\u52a0\u5feb\u901f\u7684\u8bb0\u5fc6\u5355\u8bcd，\u51b3\u5b9a\u5c06\u8bcd\u5178\u4e0a\u6240\u6709\u7684\u5355\u8bcd\u6309\u7167\u5355\u8bcd\u524d\u7f00\u5c06\u5176\u5206\u4e3a KK<\/span><\/span>K<\/span><\/span><\/span><\/span><\/span> \u7c7b，\u5177\u4f53\u7684\u8981\u6c42\u662f:<\/p>\n

  • \u9009\u51fa KK<\/span><\/span>K<\/span><\/span><\/span><\/span><\/span> \u4e2a\u4e0d\u540c\u7684\u5355\u8bcd\u524d\u7f00\u4f5c\u4e3a KK<\/span><\/span>K<\/span><\/span><\/span><\/span><\/span> \u7c7b（\u7a7a\u4e32\u4e5f\u662f\u5408\u6cd5\u7684\u5355\u8bcd\u524d\u7f00）；<\/li>\n
  • \u5bf9\u4e8e\u5b57\u5178\u4e0a\u7684\u6bcf\u4e2a\u5355\u8bcd，\u53ea\u80fd\u5c5e\u4e8e KK<\/span><\/span>K<\/span><\/span><\/span><\/span><\/span> \u7c7b\u4e2d\u7684\u67d0\u4e00\u4e2a\u7c7b，\u4e0d\u80fd\u540c\u65f6\u5c5e\u4e8e\u591a\u4e2a\u7c7b，\u4e5f\u4e0d\u80fd\u4e0d\u5c5e\u4e8e\u4efb\u4f55\u4e00\u7c7b；<\/li>\n
  • \u5bf9\u4e8e KK<\/span><\/span>K<\/span><\/span><\/span><\/span><\/span> \u7c7b\u4e2d\u7684\u6bcf\u4e2a\u7c7b，\u81f3\u5c11\u5305\u542b\u6709\u4e00\u4e2a\u5355\u8bcd\u3002<\/li>\n

    \u73b0\u5728\u5df2\u77e5\u5b57\u5178\u4e0a\u4e00\u5171\u6709 NN<\/span><\/span>N<\/span><\/span><\/span><\/span><\/span> \u4e2a\u5355\u8bcd，\u5c0f\u84dd\u60f3\u8981\u77e5\u9053\u5c06\u8fd9 NN<\/span><\/span>N<\/span><\/span><\/span><\/span><\/span> \u4e2a\u5355\u8bcd\u6309\u7167\u4e0a\u8ff0\u8981\u6c42\u5206\u4e3a KK<\/span><\/span>K<\/span><\/span><\/span><\/span><\/span> \u7c7b，\u4e00\u5171\u6709\u591a\u5c11\u79cd\u4e0d\u540c\u7684\u65b9\u6848\u3002\u4e24\u4e2a\u65b9\u6848\u4e0d\u540c\u6307\u7684\u662f\u4e24\u4e2a\u65b9\u6848\u5404\u81ea\u9009\u51fa\u7684 KK<\/span><\/span>K<\/span><\/span><\/span><\/span><\/span> \u4e2a\u5355\u8bcd\u524d\u7f00\u4e0d\u5b8c\u5168\u76f8\u540c\u3002\u7b54\u6848\u53ef\u80fd\u8fc7\u5927，\u6240\u4ee5\u4f60\u9700\u8981\u5c06\u7b54\u6848\u5bf9 1\u2009000\u2009000\u20090071\\\\,000\\\\,000\\\\,007<\/span><\/span>1<\/span><\/span>000<\/span><\/span>000<\/span><\/span>007<\/span><\/span><\/span><\/span><\/span>（\u5373 109+710^9 + 7<\/span><\/span>1<\/span>0<\/span><\/span>9<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>+<\/span><\/span><\/span><\/span>7<\/span><\/span><\/span><\/span><\/span>）\u53d6\u6a21\u540e\u8f93\u51fa\u3002<\/p>\n

    \u8f93\u5165\u683c\u5f0f<\/h3>\n

    \u8f93\u5165\u7684\u7b2c\u4e00\u884c\u5305\u542b\u4e24\u4e2a\u6574\u6570 NN<\/span><\/span>N<\/span><\/span><\/span><\/span><\/span> \u548c KK<\/span><\/span>K<\/span><\/span><\/span><\/span><\/span>；<\/p>\n

    \u63a5\u4e0b\u6765 NN<\/span><\/span>N<\/span><\/span><\/span><\/span><\/span> \u884c，\u6bcf\u884c\u5305\u542b\u4e00\u4e2a\u5355\u8bcd，\u7531 l\\\\tt{l}<\/span><\/span>l<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3001q\\\\tt{q}<\/span><\/span>q<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3001b\\\\tt{b}<\/span><\/span>b<\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u4e09\u79cd\u5b57\u7b26\u7ec4\u6210\u3002<\/p>\n

    \u8f93\u51fa\u683c\u5f0f<\/h3>\n

    \u8f93\u51fa\u4e00\u4e2a\u6574\u6570\u8868\u793a\u7b54\u6848\u3002\u7b54\u6848\u53ef\u80fd\u5f88\u5927，\u8bf7\u8f93\u51fa\u7b54\u6848\u5bf9 1\u2009000\u2009000\u20090071\\\\,000\\\\,000\\\\,007<\/span><\/span>1<\/span><\/span>000<\/span><\/span>000<\/span><\/span>007<\/span><\/span><\/span><\/span><\/span> \u53d6\u6a21\u7684\u503c\u3002<\/p>\n

    \u8f93\u5165\u8f93\u51fa\u6837\u4f8b #1<\/h3>\n

    \u8f93\u5165 #1<\/h4>\n

    4 2
    \nlqb
    \nlql
    \nqqq
    \nqql<\/p>\n

    \u8f93\u51fa #1<\/h4>\n

    4<\/p>\n

    \u8bf4\u660e\/\u63d0\u793a<\/h3>\n

    \u6837\u4f8b\u8bf4\u660e<\/h4>\n
      \n
    • \u65b9\u6848 1：l=lqb,lql\\\\tt{l}=\\\\tt{lqb}, \\\\tt{lql}<\/span><\/span>l<\/span><\/span><\/span>=<\/span><\/span>lqb<\/span><\/span>,<\/span><\/span>lql<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3001q=qqq,qql\\\\tt{q}=\\\\tt{qqq}, \\\\tt{qql}<\/span><\/span>q<\/span><\/span><\/span>=<\/span><\/span>qqq<\/span><\/span>,<\/span><\/span>qql<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>；<\/li>\n
    • \u65b9\u6848 2：lq=lqb,lql\\\\tt{lq}=\\\\tt{lqb}, \\\\tt{lql}<\/span><\/span>lq<\/span><\/span><\/span>=<\/span><\/span>lqb<\/span><\/span>,<\/span><\/span>lql<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3001q=qqq,qql\\\\tt{q}=\\\\tt{qqq}, \\\\tt{qql}<\/span><\/span>q<\/span><\/span><\/span>=<\/span><\/span>qqq<\/span><\/span>,<\/span><\/span>qql<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>；<\/li>\n
    • \u65b9\u6848 3：l=lqb,lql\\\\tt{l}=\\\\tt{lqb}, \\\\tt{lql}<\/span><\/span>l<\/span><\/span><\/span>=<\/span><\/span>lqb<\/span><\/span>,<\/span><\/span>lql<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3001qq=qqq,qql\\\\tt{qq}=\\\\tt{qqq}, \\\\tt{qql}<\/span><\/span>qq<\/span><\/span><\/span>=<\/span><\/span>qqq<\/span><\/span>,<\/span><\/span>qql<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>；<\/li>\n
    • \u65b9\u6848 4：lq=lqb,lql\\\\tt{lq}=\\\\tt{lqb}, \\\\tt{lql}<\/span><\/span>lq<\/span><\/span><\/span>=<\/span><\/span>lqb<\/span><\/span>,<\/span><\/span>lql<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3001qq=qqq,qql\\\\tt{qq}=\\\\tt{qqq}, \\\\tt{qql}<\/span><\/span>qq<\/span><\/span><\/span>=<\/span><\/span>qqq<\/span><\/span>,<\/span><\/span>qql<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002<\/li>\n<\/ul>\n

      \u4ee5\u65b9\u6848 11<\/span><\/span>1<\/span><\/span><\/span><\/span><\/span> \u4e3a\u4f8b，\u4ed6\u8868\u793a\u9009\u51fa\u7684\u4e24\u7c7b\u5bf9\u5e94\u7684\u524d\u7f00\u5206\u522b\u662f l\\\\tt l<\/span><\/span>l<\/span><\/span><\/span><\/span><\/span><\/span> \u548c q\\\\tt q<\/span><\/span>q<\/span><\/span><\/span><\/span><\/span><\/span>，\u5c5e\u4e8e\u524d\u7f00 l\\\\tt l<\/span><\/span>l<\/span><\/span><\/span><\/span><\/span><\/span> \u7684\u5355\u8bcd\u6709 lqb\\\\tt {lqb}<\/span><\/span>lqb<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3001lql\\\\tt{lql}<\/span><\/span>lql<\/span><\/span><\/span><\/span><\/span><\/span><\/span>，\u5c5e\u4e8e\u524d\u7f00 q\\\\tt q<\/span><\/span>q<\/span><\/span><\/span><\/span><\/span><\/span> \u7684\u5355\u8bcd\u6709 qqq\\\\tt{qqq}<\/span><\/span>qqq<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3001qql\\\\tt{qql}<\/span><\/span>qql<\/span><\/span><\/span><\/span><\/span><\/span><\/span>，\u65b9\u6848 11<\/span><\/span>1<\/span><\/span><\/span><\/span><\/span> \u5c06\u56db\u4e2a\u5355\u8bcd\u6309\u7167\u524d\u7f00\u5206\u6210\u4e86\u4e24\u7c7b，\u4e14\u6bcf\u7c7b\u81f3\u5c11\u5305\u542b\u4e00\u4e2a\u5355\u8bcd，\u6bcf\u4e2a\u5355\u8bcd\u4ec5\u5c5e\u4e8e\u4e00\u7c7b，\u6240\u4ee5\u65b9\u6848 11<\/span><\/span>1<\/span><\/span><\/span><\/span><\/span> \u6ee1\u8db3\u9898\u610f\u3002<\/p>\n

      \u8bc4\u6d4b\u7528\u4f8b\u89c4\u6a21\u4e0e\u7ea6\u5b9a<\/h4>\n
        \n
      • \u5bf9\u4e8e 30%30\\\\%<\/span><\/span>30%<\/span><\/span><\/span><\/span><\/span> \u7684\u8bc4\u6d4b\u7528\u4f8b，1\u2264N\u2264101 \\\\leq N \\\\leq 10<\/span><\/span>1<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>N<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>10<\/span><\/span><\/span><\/span><\/span>，1\u2264K\u226451 \\\\leq K \\\\leq 5<\/span><\/span>1<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>K<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>5<\/span><\/span><\/span><\/span><\/span>；<\/li>\n
      • \u5bf9\u4e8e 50%50\\\\%<\/span><\/span>50%<\/span><\/span><\/span><\/span><\/span> \u7684\u8bc4\u6d4b\u7528\u4f8b，1\u2264N\u2264501 \\\\leq N \\\\leq 50<\/span><\/span>1<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>N<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>50<\/span><\/span><\/span><\/span><\/span>，1\u2264K\u2264101 \\\\leq K \\\\leq 10<\/span><\/span>1<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>K<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>10<\/span><\/span><\/span><\/span><\/span>；<\/li>\n
      • \u5bf9\u4e8e\u6240\u6709\u8bc4\u6d4b\u7528\u4f8b，1\u2264N\u22642001 \\\\leq N \\\\leq 200<\/span><\/span>1<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>N<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>200<\/span><\/span><\/span><\/span><\/span>，1\u2264K\u22641001 \\\\leq K \\\\leq 100<\/span><\/span>1<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>K<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>100<\/span><\/span><\/span><\/span><\/span>，1\u22641 \\\\leq<\/span><\/span>1<\/span><\/span>\u2264<\/span><\/span><\/span><\/span><\/span> \u5355\u8bcd\u957f\u5ea6 \u226410\\\\leq 10<\/span><\/span>\u2264<\/span><\/span><\/span><\/span>10<\/span><\/span><\/span><\/span><\/span>\u3002<\/li>\n<\/ul>\n

        C++\u5b9e\u73b0<\/h3>\n

        #<\/span>include<\/span>"bits\/stdc++.h"<\/span><\/span>
        \nusing<\/span> namespace<\/span> std;<\/span>
        \nconst<\/span> int<\/span> N =<\/span> 205<\/span> *<\/span> 10<\/span>,<\/span> K =<\/span> 105<\/span>,<\/span> mod =<\/span> 1e9<\/span> +<\/span> 7<\/span>;<\/span>
        \nint<\/span> n,<\/span> k;<\/span>
        \nint<\/span> trie[<\/span>N]<\/span>[<\/span>4<\/span>]<\/span>,<\/span> word[<\/span>N]<\/span>,<\/span> tot;<\/span>
        \nvector<<\/span>int<\/span>><\/span>g[<\/span>N]<\/span>;<\/span>
        \ninline<\/span> int<\/span> get_num<\/span>(<\/span>char<\/span> c)<\/span> {<\/span>
        \nif<\/span> (<\/span>c ==<\/span> 'l'<\/span>)<\/span>return<\/span> 1<\/span>;<\/span>
        \nif<\/span> (<\/span>c ==<\/span> 'q'<\/span>)<\/span>return<\/span> 2<\/span>;<\/span>
        \nreturn<\/span> 3<\/span>;<\/span>
        \n}<\/span>
        \nvoid<\/span> insert<\/span>(<\/span>string s)<\/span> {<\/span>
        \nint<\/span> u =<\/span> 0<\/span>;<\/span>
        \nfor<\/span> (<\/span>char<\/span> c :<\/span> s)<\/span> {<\/span>
        \nint<\/span> a =<\/span> get_num<\/span>(<\/span>c)<\/span>;<\/span>
        \nif<\/span> (<\/span>!<\/span>trie[<\/span>u]<\/span>[<\/span>a]<\/span>)<\/span> {<\/span>
        \ntrie[<\/span>u]<\/span>[<\/span>a]<\/span> =<\/span> ++<\/span>tot;<\/span>
        \ng[<\/span>u]<\/span>.<\/span>push_back<\/span>(<\/span>tot)<\/span>;<\/span>\/\/\u5efa\u56fe<\/span>
        \n}<\/span>
        \nu =<\/span> trie[<\/span>u]<\/span>[<\/span>a]<\/span>;<\/span>
        \n}<\/span>
        \nword[<\/span>u]<\/span>++<\/span>;<\/span>
        \n}<\/span>
        \nlong<\/span> long<\/span> dp[<\/span>N]<\/span>[<\/span>K]<\/span>;<\/span>
        \nvoid<\/span> dfs<\/span>(<\/span>int<\/span> u)<\/span> {<\/span>
        \nif<\/span> (<\/span>u &&<\/span> word[<\/span>u]<\/span>)<\/span> {<\/span>\/\/\u53f6\u5b50\u8282\u70b9<\/span>
        \n dp[<\/span>u]<\/span>[<\/span>1<\/span>]<\/span> =<\/span> 1<\/span>;<\/span>
        \n return<\/span>;<\/span>
        \n}<\/span>
        \ndp[<\/span>u]<\/span>[<\/span>0<\/span>]<\/span> =<\/span> 1<\/span>;<\/span>\/\/\u521d\u59cb\u72b6\u6001<\/span>
        \nfor<\/span> (<\/span>int<\/span> v :<\/span> g[<\/span>u]<\/span>)<\/span> {<\/span>
        \ndfs<\/span>(<\/span>v)<\/span>;<\/span>
        \nlong<\/span> long<\/span> t[<\/span>K]<\/span> =<\/span> {<\/span>0<\/span>}<\/span>;<\/span>\/\/\u4e34\u65f6\u6570\u7ec4\u5b58\u50a8\u7ed3\u679c，\u907f\u514d\u8ba1\u7b97\u65f6\u65b0\u8ba1\u7b97\u7684\u503c\u5f71\u54cd\u540e\u9762\u7684\u8ba1\u7b97<\/span>
        \nfor<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <=<\/span> k;<\/span> i++<\/span>)<\/span> {<\/span>
        \nfor<\/span> (<\/span>int<\/span> j =<\/span> 0<\/span>;<\/span> j <=<\/span> k –<\/span> i;<\/span> j++<\/span>)<\/span> {<\/span>
        \nt[<\/span>i +<\/span> j]<\/span> =<\/span> (<\/span>t[<\/span>i +<\/span> j]<\/span> +<\/span> dp[<\/span>u]<\/span>[<\/span>i]<\/span> *<\/span> dp[<\/span>v]<\/span>[<\/span>j]<\/span>)<\/span> %<\/span> mod;<\/span>\/\/\u679a\u4e3e\u8ba1\u7b97<\/span>
        \n}<\/span>
        \n}<\/span>
        \nmemcpy<\/span>(<\/span>dp[<\/span>u]<\/span>,<\/span> t,<\/span> sizeof<\/span> dp[<\/span>u]<\/span>)<\/span>;<\/span>\/\/\u8d4b\u503c\u56de\u6765<\/span>
        \n}<\/span>
        \ndp[<\/span>u]<\/span>[<\/span>1<\/span>]<\/span> =<\/span> (<\/span>dp[<\/span>u]<\/span>[<\/span>1<\/span>]<\/span> +<\/span> 1<\/span>)<\/span> %<\/span> mod;<\/span>\/\/\u5355\u72ec\u9009\u62e9\u8be5\u8282\u70b9<\/span>
        \n}<\/span>
        \nsigned<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
        \ncin.<\/span>tie<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
        \ncout.<\/span>tie<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
        \nios::<\/span>sync_with_stdio<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
        \ncin >><\/span> n >><\/span> k;<\/span>
        \nfor<\/span> (<\/span>int<\/span> i =<\/span> 1<\/span>;<\/span> i <=<\/span> n;<\/span> i++<\/span>)<\/span> {<\/span>
        \nstring s;<\/span>
        \ncin >><\/span> s;<\/span>
        \ninsert<\/span>(<\/span>s)<\/span>;<\/span>\/\/\u5efa Trie \u6811<\/span>
        \n}<\/span>
        \ndfs<\/span>(<\/span>0<\/span>)<\/span>;<\/span>\/\/\u6811\u5f62 DP<\/span>
        \ncout <<<\/span> dp[<\/span>0<\/span>]<\/span>[<\/span>k]<\/span>;<\/span>
        \nreturn<\/span> 0<\/span>;<\/span>
        \n}<\/span><\/p>\n

        \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

        \u540e\u7eed<\/h3>\n

        \u63a5\u4e0b\u6765\u6211\u4f1a\u4e0d\u65ad\u7528C++\u6765\u5b9e\u73b0\u4fe1\u5965\u6bd4\u8d5b\u4e2d\u7684\u7b97\u6cd5\u9898\u3001GESP\u8003\u7ea7\u7f16\u7a0b\u9898\u5b9e\u73b0\u3001\u767d\u540d\u5355\u8d5b\u4e8b\u8003\u9898\u5b9e\u73b0，\u8bb0\u5f55\u65e5\u5e38\u7684\u7f16\u7a0b\u751f\u6d3b\u3001\u6bd4\u8d5b\u5fc3\u5f97，\u611f\u5174\u8da3\u7684\u8bf7\u5173\u6ce8，\u6211\u540e\u7eed\u5c06\u7ee7\u7eed\u5206\u4eab\u76f8\u5173\u5185\u5bb9<\/p>\n","protected":false},"excerpt":{"rendered":"

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