{"id":126,"date":"2011-08-18T23:12:03","date_gmt":"2011-08-18T15:12:03","guid":{"rendered":"http:\/\/wangkaixuan.tech\/?p=126"},"modified":"2020-06-03T23:12:39","modified_gmt":"2020-06-03T15:12:39","slug":"zoj-2795-ambiguous-permutations","status":"publish","type":"post","link":"http:\/\/www.wangkaixuan.tech\/?p=126","title":{"rendered":"zoj 2795 Ambiguous permutations"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>\/*\n\u76f4\u63a5\u6a21\u62df\n*\/\n#define LOCAL\n#include&lt;iostream>\n#include&lt;cstdio>\n#include&lt;cmath>\n#include&lt;cstring>\n#include&lt;cstdlib>\n#include&lt;iomanip>\n#include&lt;string>\n#include&lt;algorithm>\n#include&lt;ctime>\n#include&lt;stack>\n#include&lt;queue>\n#include&lt;vector>\n#define N 100005\nusing namespace std;\nint a&#91;N],b&#91;N];\nbool match(int len)\n{\n     int i;\n     for(i=0;i&lt;len;i++)\n        if(a&#91;i]!=b&#91;i])\n            return false;\n     return true;     \n}\nint main()\n{\n#ifdef LOCAL\n       freopen(\"input.txt\",\"r\",stdin);\n       freopen(\"output.txt\",\"w\",stdout);\n#endif\n \n      int i,len;\n      while(cin>>len&amp;&amp;len)\n      {\n          for(i=0;i&lt;len;i++) \n          {cin>>a&#91;i];b&#91;a&#91;i]-1]=i+1;}\n          if(match(len))cout&lt;&lt;\"ambiguous\"&lt;&lt;endl;\n          else cout&lt;&lt;\"not ambiguous\"&lt;&lt;endl;                   \n      }\n      return 0;\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-126","post","type-post","status-publish","format-standard","hentry","category-06-01-acm"],"_links":{"self":[{"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/posts\/126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=126"}],"version-history":[{"count":0,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/posts\/126\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=126"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}