{"id":74,"date":"2011-08-08T13:19:14","date_gmt":"2011-08-08T05:19:14","guid":{"rendered":"http:\/\/wangkaixuan.tech\/?p=74"},"modified":"2020-06-03T13:19:50","modified_gmt":"2020-06-03T05:19:50","slug":"hdu-3835-rn","status":"publish","type":"post","link":"http:\/\/www.wangkaixuan.tech\/?p=74","title":{"rendered":"hdu 3835 &#8211; R(N)"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>#define LOCAL\n#include&lt;iostream>\n#include&lt;cmath>\nusing namespace std;\nint main()\n{\n#ifdef LOCAL\n       freopen(\"input.txt\",\"r\",stdin);\n       freopen(\"output.txt\",\"w\",stdout);\n#endif\n    \n    \n    long n,i,t,count;\n    while(cin>>n)\n    {\n            count=0;\n            for(i=0;i&lt;=sqrt(n);i++)\n            {\n                    if(fmod(sqrt(n-i*i),1)==0)   \/\/\u7528fmod()\u6548\u7387\u4e0d\u9ad8\uff0c\u5efa\u8bae\u6362\u79cd\u5224\u5b9a\u65b9\u6cd5 \n                           count++;                \n            }\n            if(fmod(sqrt(n),1)==0)    \/\/\u6570\u5b66\u4e0d\u597d\uff0c\u4e00\u4e2a\u516c\u5f0f\u8bd5\u4e86\u534a\u5929 \u3002\u3002\u3002 \n                  count=4*count-4;\n            else\n                  count=4*count;\n            cout&lt;&lt;count&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-74","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\/74","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=74"}],"version-history":[{"count":0,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=\/wp\/v2\/posts\/74\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=74"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=74"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.wangkaixuan.tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=74"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}