{"id":114,"date":"2011-08-08T23:04:00","date_gmt":"2011-08-08T15:04:00","guid":{"rendered":"http:\/\/wangkaixuan.tech\/?p=114"},"modified":"2020-06-03T23:04:41","modified_gmt":"2020-06-03T15:04:41","slug":"hdu-3833-yys-new-problem","status":"publish","type":"post","link":"http:\/\/www.wangkaixuan.tech\/?p=114","title":{"rendered":"hdu 3833 YY&#8217;s new problem"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>\/*\n\u6b64\u9898\u8ba9\u6211\u5934\u75bc\u5230\u65e0\u8bed\n\u9519\u8bef\u767e\u51fa\nWA\u4e86\u4e0d\u4e0b\u5341\u6b21\nfor a beginner \n\u8fd9\u9053\u9898\u8ba9\u6211\u4f53\u4f1a\u5230\u4e86\u4e07\u5ff5\u4ff1\u7070\u7684\u611f\u89c9 \n\u5148\u8bf4\u4e00\u4e0b\u601d\u8def\uff1a\n\u9898\u76ee\u4e2d\u8bf4\uff0c\u7ed9\u5b9a\u4e00\u4e2aN\n\u7136\u540e\u5728\u7ed9\u5b9a\u4e00\u4e2a1...N\u7684\u5e8f\u5217\n\u4e5f\u5c31\u662f\u8bf41...N\u6bcf\u4e2a\u6570\u90fd\u4f1a\u51fa\u73b0\n\u4e14\u53ea\u4f1a\u51fa\u73b0\u4e00\u6b21\n\u8fd9\u662f\u5176\u4e00\n\u5f15\u5165hash&#91;]\u6765\u8bb0\u5f55\u8be5\u6570\u662f\u5426\u5df2\u7ecf\u51fa\u73b0\n\u51fa\u73b0\u4e3a1\uff0c\u5426\u5219\u4e3a0\n\u8bfb\u5165\u4e00\u4e2a\u6570t\n\u4ece1\u5230t-1\u4f9d\u6b21\u5224\u65ad\u662f\u5426\u6709hash&#91;t-i]+hash&#91;t+i]==1\n\u5373\u4ee5t\u4e3a\u4e2d\u9879\uff0c\u5bf9\u4e8et-i,t+i\u662f\u5426\u4ec5\u51fa\u73b0\u8fc7\u4e00\u4e2a\u7531\u4e8e\u662f\u6309\u987a\u5e8f\u8bfb\u5165\u7684\n\u5373\u53ef\u4fdd\u8bc1t-i\u548ct+i\u5728\u539f\u5e8f\u5217\u4e2d\u4e00\u5b9a\u662f\u5728t\u7684\u4e24\u8fb9\namazing\uff01 \n*\/\n#define LOCAL\n#include&lt;iostream>\n#include&lt;cstring>\n#define N 10005\nusing namespace std;\nbool hash&#91;N],flag;\nint main()\n{\n#ifdef LOCAL\n       freopen(\"input.txt\",\"r\",stdin);\n       freopen(\"output.txt\",\"w\",stdout);\n#endif\n    \n    int n,m,i,t,j;\n    cin>>m;\n    while(m--)\n    {\n           cin>>n;\n           memset(hash,0,sizeof(hash));\n           j=n;\n           flag=0;\n           while(j--)\n           {\n                   cin>>t;\n                   hash&#91;t]=1;    \/\/\u8fd9\u4e2a\u4e0d\u80fd\u653e\u91cc\u8fb9\uff0c\u5426\u5219\u4f1a\u51fa\u73b0\u6709\u4e9b\u6570\u636e\u65e0\u6cd5\u8bfb\u7ed9hash&#91;]\u7684\u60c5\u51b5 \n                   for(i=1;!flag&amp;&amp;(i&lt;t)&amp;&amp;(t+i&lt;=n);i++)\n                   {\n                           if(hash&#91;t-i]+hash&#91;t+i]==1)\n                                 flag=1;   \/\/\u8bbe\u5b9a\u6807\u5fd7\u53d8\u91cfflag\uff0c\u4e00\u65e6\u51fa\u73b0\u7b26\u5408\u6761\u4ef6\u7684\u7ec4\u5408\u5c31\u8df3\u51fa\u4ee5\u8282\u7701\u8fd0\u884c\u65f6\u95f4 \n                    }\n            }    \n            if(flag)\n                   cout&lt;&lt;\"Y\"&lt;&lt;endl;\n            else \n                   cout&lt;&lt;\"N\"&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-114","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\/114","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=114"}],"version-history":[{"count":0,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/posts\/114\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=114"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}