{"id":110,"date":"2011-08-04T23:01:46","date_gmt":"2011-08-04T15:01:46","guid":{"rendered":"http:\/\/wangkaixuan.tech\/?p=110"},"modified":"2020-06-03T23:02:23","modified_gmt":"2020-06-03T15:02:23","slug":"zoj-3131-digital-clock","status":"publish","type":"post","link":"http:\/\/www.wangkaixuan.tech\/?p=110","title":{"rendered":"zoj 3131 Digital Clock"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>\/*\n\u770b\u5230\u8fd9\u9898\u9996\u5148\u60f3\u8d77\u6765\u6a21\u62df\nbut\u3002\u3002\u3002\u8d85\u65f6\u3002\u3002\u3002\n\u7136\u540e\u60f3\u8d77\u6765\u6253\u8868\u67e5\u627e\n\u6700\u5148\u662f\u628a\u6240\u6709\u79d2\u6570\u90fd\u5b58\u8d77\u6765\n\u5f00\u4e86\u4e00\u4e2a86400\u7684\u6570\u7ec4\u7136\u540e\u628a\u53ef\u4ee5\u88ab3\u6574\u9664\u7684\u8d4b\u503c\u4e3a1\n\u5176\u4f59\u4e3a0\n\u7136\u540e\u53ea\u9700\u8981\u67e5\u627e\u533a\u95f4\u4e2d1\u7684\u4e2a\u6570\u5373\u53ef\n\u7ed3\u679c\u3002\u3002\u3002TLE\u3002\u3002\u3002\n\u540e\u6765\u770b\u9898\u89e3\u53d1\u73b0\u81ea\u5df1\u539f\u6765\u505a\u4e86\u90a3\u4e48\u591a\u7684\u65e0\u7528\u529f\n\u5148\u662f\u5199\u4e86\u4e00\u4e2atest()\u67e5\u51fa\u4e00\u5171\u670928800\u4e2a\u6ee1\u8db3\u9898\u610f\u7684\u949f\u8868\u6570\n\u7136\u540e\u5199\u5165\u6570\u636e\u7684\u65f6\u5019\u5c31\u629b\u5f03\u4e0d\u7b26\u5408\u7684\u6570\n\u5b8c\u6210\u63d0\u4ea4\nAC \n*\/\n#define LOCAL\n#include&lt;iostream>\n#define N 28800\nusing namespace std;\nint t&#91;N];\nint main()\n{\n#ifdef LOCAL\n       freopen(\"input.txt\",\"r\",stdin);\n       freopen(\"output.txt\",\"w\",stdout);\n#endif\n    int count=0,h,m,s,n,i,start,end;\n    string a,b;\n    for(h=0;h&lt;24;h++)  \/\/\u6253\u8868 \n    {\n           for(m=0;m&lt;60;m++)\n           {\n                for(s=0;s&lt;60;s++)\n                {\n                         if((h\/10+h%10+m\/10+m%10+s\/10+s%10)%3==0)\n                               t&#91;count++]=h*10000+m*100+s;               \n                }                 \n           }                 \n    }\n    while(cin>>n)     \/\/\u4e3b\u4f53\u90e8\u5206 \n    {\n         while(n--)\n         {\n           cin>>a>>b;\n           start=((a&#91;0]-'0')*10+a&#91;1]-'0')*10000+((a&#91;3]-'0')*10+a&#91;4]-'0')*100+(a&#91;6]-'0')*10+a&#91;7]-'0';\n           end=((b&#91;0]-'0')*10+b&#91;1]-'0')*10000+((b&#91;3]-'0')*10+b&#91;4]-'0')*100+(b&#91;6]-'0')*10+b&#91;7]-'0';\n           count=0; \n           if(start&lt;end)\n           { \n                   for(i=0;i&lt;N;i++)\n                           if(t&#91;i]>=start&amp;&amp;t&#91;i]&lt;=end)\n                                 count++;           \n           }\n           else\n           {\n                   for(i=0;i&lt;N;i++)\n                           if(t&#91;i]&lt;start&amp;&amp;t&#91;i]>end)\n                                 count++;     \n                   count=28800-count;\n           }\n           cout&lt;&lt;count&lt;&lt;endl;    \n        }\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-110","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\/110","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=110"}],"version-history":[{"count":0,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/posts\/110\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=110"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=110"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}