{"id":1066,"date":"2019-05-11T13:40:34","date_gmt":"2019-05-11T05:40:34","guid":{"rendered":"https:\/\/0.mnihyc.com\/blog\/?p=1066"},"modified":"2020-02-09T02:56:46","modified_gmt":"2020-02-08T18:56:46","slug":"yzoj-p3385-%e6%a0%a1%e5%86%85%e8%ae%ad%e7%bb%8320171201%e7%ac%94%e5%90%8d%e5%88%86%e9%85%8d%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/0.mnihyc.com\/blog\/archives\/1066","title":{"rendered":"YZOJ P3385 [\u6821\u5185\u8bad\u7ec320171201]\u7b14\u540d\u5206\u914d\u95ee\u9898"},"content":{"rendered":"<h1 style=\"text-align: center;\">YZOJ P3385 [\u6821\u5185\u8bad\u7ec320171201]\u7b14\u540d\u5206\u914d\u95ee\u9898<\/h1>\n<p style=\"text-align: center;\">\u65f6\u95f4\u9650\u5236\uff1a1000MS \u00a0\u00a0\u00a0\u00a0 \u5185\u5b58\u9650\u5236\uff1a262144KB<\/p>\n<p style=\"text-align: center;\">\u96be\u5ea6\uff1a<span style=\"color: #ff9900;\">\\(5.5\\)<\/span><\/p>\n<ul>\n<li>\n<h3><strong>\u9898\u76ee\u63cf\u8ff0<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>\u73ed\u91cc\u6709 \\(n\\) \u4e2a\u540c\u5b66\u3002\u8001\u5e08\u4e3a\u4ed6\u4eec\u9009\u4e86 \\(n\\) \u4e2a\u7b14\u540d\u3002\u73b0\u5728\u8981\u628a\u8fd9\u4e9b\u7b14\u540d\u5206\u914d\u7ed9\u6bcf\u4e00\u4e2a\u540c\u5b66\uff0c \u6bcf\u4e00\u4e2a\u540c\u5b66\u5206\u914d\u5230\u4e00\u4e2a\u7b14\u540d\uff0c\u6bcf\u4e00\u4e2a\u7b14\u540d\u5fc5\u987b\u5206\u914d\u7ed9\u67d0\u4e2a\u540c\u5b66\u3002\u73b0\u5728\u5b9a\u4e49\u7b14\u540d\u548c\u771f\u540d\u4e4b\u95f4\u7684\u76f8\u5173\u5ea6\u662f\u4ed6\u4eec\u4e4b\u95f4\u7684\u6700\u957f\u516c\u5171\u524d\u7f00\u3002\u8bbe\u7b14\u540d\u4e3a \\(a\\)\uff0c\u771f\u540d\u4e3a \\(b\\)\uff0c\u5219\u4ed6\u4eec\u4e4b\u95f4\u7684\u76f8\u5173\u5ea6\u4e3a \\(lcp(a,b)\\)\u3002\u90a3\u4e48\u6211\u4eec\u5c31\u53ef\u4ee5\u5f97\u5230\u5339\u914d\u7684\u8d28\u91cf\u662f\u6bcf\u4e00\u4e2a\u540c\u5b66\u7b14\u540d\u548c\u771f\u540d\u4e4b\u95f4\u76f8\u5173\u5ea6\u7684\u548c\u3002<\/p>\n<p>\u5bf9\u4e8e\u4e24\u4e2a\u5b57\u7b26\u4e32 \\(a,b\\)\uff08\u4ece \\(1\\) \u5f00\u59cb\u6807\u53f7\uff09\uff0c\u5b9a\u4e49 \\(a,b\\) \u7684\u6700\u957f\u516c\u5171\u524d\u7f00 \\(lcp(a,b)\\) \u4e3a\u6700\u5927\u7684\u975e\u8d1f\u6574\u6570 \\(k\\)\uff0c\u4f7f\u5f97 \\(k\\le |a|, k\\le |b|\\)\uff0c\u4e14\u5bf9\u6240\u6709 \\(i=1,2,\\ldots,k\\)\uff0c\\(a_i = b_i\\) \u3002<\/p>\n<p>\u7ed9\u51fa\u4e00\u79cd\u5206\u914d\u7b14\u540d\u7684\u65b9\u6848\uff0c\u4f7f\u5f97\u5339\u914d\u8d28\u91cf\u6700\u5927\u3002<\/p>\n<ul>\n<li>\n<h3><strong>\u8f93\u5165\u683c\u5f0f<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>\u7b2c \\(1\\) \u884c\u6709 \\(1\\) \u4e2a\u6574\u6570 \\(n\\)\uff0c\u8868\u793a\u73ed\u7ea7\u4e2d\u540c\u5b66\u7684\u6570\u76ee\u3002\u63a5\u4e0b\u6765 \\(n\\) \u884c\uff0c\u8868\u793a\u6bcf\u4e00\u4e2a\u540c\u5b66\u7684\u771f\u540d\u3002\u6700\u540e \\(n\\) \u884c\u662f\u8001\u5e08\u5df2\u7ecf\u5b89\u6392\u597d\u7684\u7b14\u540d\u3002\u6bcf\u884c\u7684\u540d\u79f0\u4ec5\u7531\u5c0f\u5199\u5b57\u6bcd\u7ec4\u6210\u3002<\/p>\n<ul>\n<li>\n<h3><strong>\u8f93\u51fa\u683c\u5f0f<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>\u5c06\u5206\u914d\u7b14\u540d\u7684\u65b9\u6848\u8f93\u51fa\u5230\u6587\u4ef6\u4e2d\u3002\u7b2c\u4e00\u884c\u8f93\u51fa\u4e00\u4e2a\u6570\uff0c\u8868\u793a\u6700\u5927\u5339\u914d\u8d28\u91cf\u3002\u63a5\u4e0b\u6765 \\(n\\) \u884c\uff0c\u6bcf\u884c\u4e24\u4e2a\u6570 \\(a,b\\)\uff0c\u8868\u793a\u628a\u7f16\u53f7\u4e3a \\(b\\) \u7684\u7b14\u540d\u5206\u914d\u7ed9\u7f16\u53f7\u4e3a \\(a\\) \u7684\u540c\u5b66\u3002\u540c\u5b66\u548c\u7b14\u540d\u5747\u6309\u8f93\u5165\u987a\u5e8f\u4ece \\(1\\) \u81f3 \\(n\\) \u7f16\u53f7\u3002\u82e5\u65b9\u6848\u4e0d\u552f\u4e00\uff0c\u4efb\u610f\u8f93\u51fa\u4e00\u79cd\u5373\u53ef\u3002<\/p>\n<ul>\n<li>\n<h3><strong>\u6837\u4f8b\u8f93\u5165<\/strong><\/h3>\n<\/li>\n<\/ul>\n<pre class=\"\">5\r\ngennady\r\ngalya\r\nboris\r\nbill\r\ntoshik\r\nbilbo\r\ntorin\r\ngendalf\r\nsmaug\r\ngaladriel<\/pre>\n<ul>\n<li>\n<h3><strong>\u6837\u4f8b\u8f93\u51fa<\/strong><\/h3>\n<\/li>\n<\/ul>\n<pre class=\"lang:default decode:true \">11\r\n4 1\r\n2 5\r\n1 3\r\n5 2\r\n3 4<\/pre>\n<ul>\n<li>\n<h3><strong>\u6570\u636e\u89c4\u6a21\u4e0e\u7ea6\u5b9a<\/strong><\/h3>\n<\/li>\n<\/ul>\n<p>\u5bf9\u4e8e\u6240\u6709\u6d4b\u8bd5\u70b9\uff0c\\(n \\leq 100000\\)\uff0c\u8f93\u5165\u4e32\u603b\u957f \\(\\leq 800000\\) \u3002<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><!--more--><\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>\u56e0\u4e3a\u662f \\(lcp\\) \u95ee\u9898\uff0c\u6240\u4ee5\u53ef\u4ee5\u8003\u8651Trie\u6811\u3002<\/p>\n<p>\u521d\u59cb\u628a\u6240\u6709\u7b14\u540d\u548c\u771f\u540d\u6302\u5230\u5b57\u7b26\u4e32\u672b\u5c3e\u5728Trie\u6811\u7684\u8282\u70b9\u4e0a\uff0c\u6302\u4e24\u4e2a\u94fe\u8868\u5206\u522b\u8868\u793a\u7b14\u540d\u548c\u771f\u540d\u3002<\/p>\n<p>\u8fd9\u6837\u5c31\u4f1a\u6709\u4e00\u79cd\u8d2a\u5fc3\u7b56\u7565\uff1a\u9996\u5148DFS\u5176\u513f\u5b50\u8282\u70b9\uff0c\u7136\u540e\u4e24\u4e24\u914d\u5bf9\u7b14\u540d\u548c\u771f\u540d\uff08\u914d\u5bf9\u7684\u957f\u5ea6\u5373\u4e3a\u5176\u6df1\u5ea6\uff09\u5e76\u5220\u53bb\uff0c\u6700\u540e\u518d\u628a\u4e0d\u4e3a\u7a7a\u7684\u7b14\u540d\u6216\u771f\u540d\u6302\u7ed9\u5176\u7236\u4eb2\u8282\u70b9\u3002<\/p>\n<p>dalao\u7684\u7b80\u7565\u8bc1\u660e<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1067\" src=\"https:\/\/0.mnihyc.com\/blog\/wp-content\/uploads\/2019\/05\/QQ\u622a\u56fe20190511133911.png\" alt=\"\" width=\"802\" height=\"735\" srcset=\"https:\/\/0.mnihyc.com\/blog\/wp-content\/uploads\/2019\/05\/QQ\u622a\u56fe20190511133911.png 802w, https:\/\/0.mnihyc.com\/blog\/wp-content\/uploads\/2019\/05\/QQ\u622a\u56fe20190511133911-300x275.png 300w, https:\/\/0.mnihyc.com\/blog\/wp-content\/uploads\/2019\/05\/QQ\u622a\u56fe20190511133911-768x704.png 768w\" sizes=\"auto, (max-width: 802px) 100vw, 802px\" \/><\/p>\n<p>&nbsp;<\/p>\n<pre class=\"lang:default decode:true \">#include &lt;cstdio&gt;\r\n#include &lt;cstdlib&gt;\r\n#include &lt;cstring&gt;\r\n#include &lt;climits&gt;\r\n\r\ninline void getstr(char s[],int&amp;ls)\r\n{\r\n\tregister char c=0;\r\n\twhile(!(c&gt;='a' &amp;&amp; c&lt;='z'))\r\n\t\tc=getchar();\r\n\tls=0;\r\n\twhile(c&gt;='a' &amp;&amp; c&lt;='z')\r\n\t\ts[++ls]=c,c=getchar();\r\n\ts[ls+1]=0;\r\n\treturn;\r\n}\r\n\r\nchar s[905050];\r\nint cnt,son[801010][27];\r\nint ecnt1,enext1[801010],ends1[801010],elst1[801010],eidx1[801010];\r\nint ecnt2,enext2[801010],ends2[801010],elst2[801010],eidx2[801010];\r\n\r\nint tans,ans[105050];\r\n\r\nint depth;\r\ninline void DFS(register int o)\r\n{\r\n\t\/\/printf(\"%d %d\\n\",o,depth);\r\n\t\r\n\tdepth++;\r\n\tfor(register int j=0,s;j&lt;26;j++)\r\n\t\tif((s=son[o][j]))\r\n\t\t{\r\n\t\t\t\/\/printf(\"%d --%c--&gt; %d\\n\",o,j+'a',s),\r\n\t\t\tDFS(s);\r\n\t\t\t\r\n\t\t\tif(ends1[s])\r\n\t\t\t{\r\n\t\t\t\t(elst1[o] ? enext1[elst1[o]]=ends1[s] : ends1[o]=ends1[s]);\r\n\t\t\t\telst1[o]=elst1[s];\r\n\t\t\t}\r\n\t\t\tif(ends2[s])\r\n\t\t\t{\r\n\t\t\t\t(elst2[o] ? enext2[elst2[o]]=ends2[s] : ends2[o]=ends2[s]);\r\n\t\t\t\telst2[o]=elst2[s];\r\n\t\t\t}\r\n\t\t}\r\n\tdepth--;\r\n\t\r\n\tfor(register int j1=ends1[o],j2=ends2[o];j1 &amp;&amp; j2;)\r\n\t{\r\n\t\ttans+=depth,ans[eidx1[j1]]=eidx2[j2];\r\n\t\tends1[o]=j1=enext1[j1],ends2[o]=j2=enext2[j2];\r\n\t}\r\n}\r\n\r\nint main()\r\n{\r\n\tint N;scanf(\"%d\",&amp;N);\r\n\tfor(register int i=1;i&lt;=N;i++)\r\n\t{\r\n\t\tint ls;getstr(s,ls);\r\n\t\t\r\n\t\tregister int now=0;\r\n\t\tfor(register int j=1,tnow;j&lt;=ls;j++)\r\n\t\t\tif(!(tnow=son[now][s[j]-'a']) || !(now=tnow))\r\n\t\t\t\tnow=son[now][s[j]-'a']=++cnt;\r\n\t\tenext1[++ecnt1]=ends1[now],ends1[now]=ecnt1,eidx1[ecnt1]=i;\r\n\t\tif(!elst1[now])\r\n\t\t\telst1[now]=ecnt1;\r\n\t}\r\n\t\r\n\tfor(register int i=1;i&lt;=N;i++)\r\n\t{\r\n\t\tint ls;getstr(s,ls);\r\n\t\t\r\n\t\tregister int now=0;\r\n\t\tfor(register int j=1,tnow;j&lt;=ls;j++)\r\n\t\t\tif(!(tnow=son[now][s[j]-'a']) || !(now=tnow))\r\n\t\t\t\tnow=son[now][s[j]-'a']=++cnt;\r\n\t\tenext2[++ecnt2]=ends2[now],ends2[now]=ecnt2,eidx2[ecnt2]=i;\r\n\t\tif(!elst2[now])\r\n\t\t\telst2[now]=ecnt2;\r\n\t}\r\n\t\r\n\tDFS(0);\r\n\t\r\n\tprintf(\"%d\\n\",tans);\r\n\tfor(register int i=1;i&lt;=N;i++)\r\n\t\tprintf(\"%d %d\\n\",i,ans[i]);\r\n\t\r\n\treturn 0;\r\n}<\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>YZOJ P3385 [\u6821\u5185\u8bad\u7ec320171201]\u7b14\u540d\u5206\u914d\u95ee\u9898 \u65f6\u95f4\u9650\u5236\uff1a1000MS \u00a0\u00a0\u00a0\u00a0 \u5185\u5b58\u9650\u5236\uff1a2 &hellip; <a href=\"https:\/\/0.mnihyc.com\/blog\/archives\/1066\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">YZOJ P3385 [\u6821\u5185\u8bad\u7ec320171201]\u7b14\u540d\u5206\u914d\u95ee\u9898<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36,17,66],"tags":[],"class_list":["post-1066","post","type-post","status-publish","format-standard","hentry","category-harda","category-trie","category-greedy"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>YZOJ P3385 [\u6821\u5185\u8bad\u7ec320171201]\u7b14\u540d\u5206\u914d\u95ee\u9898 - mnihyc&#039;s Blog<\/title>\n<meta name=\"description\" content=\"YZOJ P3385 \u7b14\u540d\u5206\u914d\u95ee\u9898 \u65f6\u95f4\u9650\u5236\uff1a1000MS \u00a0\u00a0\u00a0\u00a0 \u5185\u5b58\u9650\u5236\uff1a262144KB \u96be\u5ea6\uff1a \u9898\u76ee\u63cf\u8ff0 \u73ed\u91cc\u6709 (n) \u4e2a\u540c\u5b66\u3002\u8001\u5e08\u4e3a\u4ed6\u4eec\u9009\u4e86 (n) \u4e2a\u7b14\u540d\u3002\u73b0\u5728\u8981\u628a\u8fd9\u4e9b\u7b14\u540d\u5206\u914d\u7ed9\u6bcf\u4e00\u4e2a\u540c\u5b66\uff0c\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/0.mnihyc.com\/blog\/archives\/1066\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"YZOJ P3385 [\u6821\u5185\u8bad\u7ec320171201]\u7b14\u540d\u5206\u914d\u95ee\u9898 - mnihyc&#039;s Blog\" \/>\n<meta property=\"og:description\" content=\"YZOJ P3385 \u7b14\u540d\u5206\u914d\u95ee\u9898 \u65f6\u95f4\u9650\u5236\uff1a1000MS \u00a0\u00a0\u00a0\u00a0 \u5185\u5b58\u9650\u5236\uff1a262144KB \u96be\u5ea6\uff1a \u9898\u76ee\u63cf\u8ff0 \u73ed\u91cc\u6709 (n) \u4e2a\u540c\u5b66\u3002\u8001\u5e08\u4e3a\u4ed6\u4eec\u9009\u4e86 (n) \u4e2a\u7b14\u540d\u3002\u73b0\u5728\u8981\u628a\u8fd9\u4e9b\u7b14\u540d\u5206\u914d\u7ed9\u6bcf\u4e00\u4e2a\u540c\u5b66\uff0c\" \/>\n<meta property=\"og:url\" content=\"https:\/\/0.mnihyc.com\/blog\/archives\/1066\" \/>\n<meta property=\"og:site_name\" content=\"mnihyc&#039;s Blog\" \/>\n<meta property=\"article:published_time\" content=\"2019-05-11T05:40:34+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-02-08T18:56:46+00:00\" \/>\n<meta name=\"author\" content=\"mnihyc\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@mnihyc\" \/>\n<meta name=\"twitter:site\" content=\"@mnihyc\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"mnihyc\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/0.mnihyc.com\/blog\/archives\/1066#article\",\"isPartOf\":{\"@id\":\"https:\/\/0.mnihyc.com\/blog\/archives\/1066\"},\"author\":{\"name\":\"mnihyc\",\"@id\":\"https:\/\/mnihyc.com\/blog\/#\/schema\/person\/61e167d6d591fdd20dcfee2cf848a751\"},\"headline\":\"YZOJ P3385 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