{"id":375,"date":"2013-03-28T13:28:00","date_gmt":"2013-03-28T05:28:00","guid":{"rendered":"http:\/\/nike0good.jp1.rpvhost.net\/279"},"modified":"2013-03-28T13:28:00","modified_gmt":"2013-03-28T05:28:00","slug":"bzoj_2241_sdoi2011_to_play_hamster_-_binary_judgment__greedy","status":"publish","type":"post","link":"https:\/\/nike0good.com\/?p=375","title":{"rendered":"BZOJ 2241([SDOI2011]\u6253\u5730\u9f20-\u4e8c\u5206\u5224\u65ad+\u8d2a\u5fc3)"},"content":{"rendered":"<h2 style=\"font-family:arial,verdana,helvetica,sans-serif; color:blue\">Description<\/h2>\n<div class=\"content\" style=\"font-family:arial,verdana,helvetica,sans-serif; height:auto; background-color:rgb(228,240,248); margin:0px; padding:0px 20px; font-size:14px\">\n<p class=\"NOI1\" style=\"margin:0cm 0cm 0pt\"><span style=\"font-family:\u5b8b\u4f53\"><span style=\"font-size:14px; font-family:arial,verdana,helvetica,sans-serif!important\">\u6253\u5730\u9f20\u662f\u8fd9\u6837\u7684\u4e00\u4e2a\u6e38\u620f\uff1a\u5730\u9762\u4e0a\u6709\u4e00\u4e9b\u5730\u9f20\u6d1e\uff0c\u5730\u9f20\u4eec\u4f1a\u4e0d\u65f6\u4ece\u6d1e\u91cc\u63a2\u51fa\u5934\u6765\u5f88\u77ed\u65f6\u95f4\u540e\u53c8\u7f29\u56de\u6d1e\u4e2d\u3002\u73a9\u5bb6\u7684\u76ee\u6807\u662f\u5728\u5730\u9f20\u4f38\u51fa\u5934\u65f6\uff0c\u7528\u9524\u5b50\u7838\u5176\u5934\u90e8\uff0c\u7838\u5230\u7684\u5730\u9f20\u8d8a\u591a\u5206\u6570\u4e5f\u5c31\u8d8a\u9ad8\u3002<\/span><\/span><\/p>\n<p class=\"NOI1\" style=\"margin:0cm 0cm 0pt\"><span style=\"font-size:14px\"><span style=\"font-family:\u5b8b\u4f53\">\u6e38\u620f\u4e2d\u7684\u9524\u5b50\u6bcf\u6b21\u53ea\u80fd\u6253\u4e00\u53ea\u5730\u9f20\uff0c\u5982\u679c\u591a\u53ea\u5730\u9f20\u540c\u65f6\u63a2\u51fa\u5934\uff0c\u73a9\u5bb6\u53ea\u80fd\u901a\u8fc7\u591a\u6b21\u6325\u821e\u9524\u5b50\u7684\u65b9\u5f0f\u6253\u6389\u6240\u6709\u7684\u5730\u9f20\u3002\u4f60\u8ba4\u4e3a\u8fd9\u9524\u5b50\u592a\u6ca1\u7528\u4e86\uff0c\u6240\u4ee5\u4f60\u6539\u88c5\u4e86\u9524\u5b50\uff0c\u589e\u52a0\u4e86\u9524\u5b50\u4e0e\u5730\u9762\u7684\u63a5\u89e6\u9762\u79ef\uff0c\u4f7f\u5176\u6bcf\u6b21\u53ef\u4ee5\u51fb\u6253\u4e00\u7247\u533a\u57df\u3002\u5982\u679c\u6211\u4eec\u628a\u5730\u9762\u770b\u505a<\/span><span lang=\"EN-US\"><span style=\"font-family:Times New Roman\">M*N<\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\u7684\u65b9\u9635\uff0c\u5176\u6bcf\u4e2a\u5143\u7d20\u90fd\u4ee3\u8868\u4e00\u4e2a\u5730\u9f20\u6d1e\uff0c\u90a3\u4e48\u9524\u5b50\u53ef\u4ee5\u8986\u76d6<\/span><span lang=\"EN-US\"><span style=\"font-family:Times New Roman\">R*C<\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\u533a\u57df\u5185\u7684\u6240\u6709\u5730\u9f20\u6d1e\u3002\u4f46\u662f\u6539\u88c5\u540e\u7684\u9524\u5b50\u6709\u4e00\u4e2a\u7f3a\u70b9\uff1a\u6bcf\u6b21\u6325\u821e\u9524\u5b50\u65f6\uff0c\u5bf9\u4e8e\u8fd9<\/span><span lang=\"EN-US\"><span style=\"font-family:Times New Roman\">R*C<\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\u7684\u533a\u57df\u4e2d\u7684\u6240\u6709\u5730\u6d1e\uff0c\u9524\u5b50\u4f1a\u6253\u6389\u6070\u597d\u4e00\u53ea\u5730\u9f20\u3002\u4e5f\u5c31\u662f\u8bf4\u9524\u5b50\u8986\u76d6\u7684\u533a\u57df\u4e2d\uff0c\u6bcf\u4e2a\u5730\u6d1e\u5fc5\u987b\u81f3\u5c11\u6709<\/span><span lang=\"EN-US\"><span style=\"font-family:Times New Roman\">1<\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\u53ea\u5730\u9f20\uff0c\u4e14\u5982\u679c\u67d0\u4e2a\u5730\u6d1e\u4e2d\u5730\u9f20\u7684\u4e2a\u6570\u5927\u4e8e<\/span><span lang=\"EN-US\"><span style=\"font-family:Times New Roman\">1<\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\uff0c\u90a3\u4e48\u8fd9\u4e2a\u5730\u6d1e\u53ea\u4f1a\u6709<\/span><span lang=\"EN-US\"><span style=\"font-family:Times New Roman\">1<\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\u53ea\u5730\u9f20\u88ab\u6253\u6389\uff0c\u56e0\u6b64\u6bcf\u6b21\u6325\u821e\u9524\u5b50\u65f6\uff0c\u6070\u597d\u6709<\/span><span lang=\"EN-US\"><span style=\"font-family:Times New Roman\">R*C<\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\u53ea\u5730\u9f20\u88ab\u6253\u6389\u3002\u7531\u4e8e\u9524\u5b50\u7684\u5185\u90e8\u7ed3\u6784\u8fc7\u4e8e\u7cbe\u5bc6\uff0c\u56e0\u6b64\u5728\u6e38\u620f\u8fc7\u7a0b\u4e2d\u4f60\u4e0d\u80fd\u65cb\u8f6c\u9524\u5b50\uff08\u5373\u4e0d\u80fd\u4e92\u6362<\/span><span lang=\"EN-US\"><span style=\"font-family:Times New Roman\">R<\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\u548c<\/span><span lang=\"EN-US\"><span style=\"font-family:Times New Roman\">C<\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\uff09\u3002<\/span><\/span><\/p>\n<p class=\"NOI1\" style=\"margin:0cm 0cm 0pt\"><span style=\"font-size:14px\"><span style=\"font-family:\u5b8b\u4f53\">\u4f60\u53ef\u4ee5\u4efb\u610f\u66f4\u6539\u9524\u5b50\u7684\u89c4&#26684;\uff08\u5373\u4f60\u53ef\u4ee5\u4efb\u610f\u89c4\u5b9a<\/span><span lang=\"EN-US\"><span style=\"position:relative; top:3pt\"><span style=\"font-family:Times New Roman\">R<\/span><\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\u548c<\/span><span lang=\"EN-US\"><span style=\"position:relative; top:3pt\"><span style=\"font-family:Times New Roman\">C<\/span><\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\u7684\u5927\u5c0f\uff09\uff0c\u4f46\u662f\u6539\u88c5\u9524\u5b50\u7684\u5de5\u4f5c\u53ea\u80fd\u5728\u6253\u5730\u9f20\u524d\u8fdb\u884c\uff08\u5373\u4f60\u4e0d\u53ef\u4ee5\u6253\u6389\u4e00\u90e8\u5206\u5730\u9f20\u540e\uff0c\u518d\u6539\u53d8\u9524\u5b50\u7684\u89c4&#26684;\uff09\u3002\u4f60\u7684\u4efb\u52a1\u662f\u6c42\u51fa\u8981\u60f3\u6253\u6389\u6240\u6709\u7684\u5730\u9f20\uff0c\u81f3\u5c11\u9700\u8981\u6325\u821e\u9524\u5b50\u7684\u6b21\u6570\u3002<\/span><\/span><\/p>\n<p class=\"NOI1\" style=\"margin:0cm 0cm 0pt\"><span style=\"font-size:14px\"><span lang=\"EN-US\"><span style=\"font-family:Times New Roman\">Hint<\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\uff1a\u7531\u4e8e\u4f60\u53ef\u4ee5\u628a\u9524\u5b50\u7684\u5927\u5c0f\u8bbe\u7f6e\u4e3a<\/span><span lang=\"EN-US\"><span style=\"font-family:Times New Roman\">1*1<\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\uff0c\u56e0\u6b64\u672c\u9898\u603b\u662f\u6709\u89e3\u7684\u3002<\/span><\/span><\/p>\n<p class=\"NOI0\" style=\"margin:13pt 0cm\">\n<\/p>\n<\/div>\n<h2 style=\"font-family:arial,verdana,helvetica,sans-serif; color:blue\">Input<\/h2>\n<div class=\"content\" style=\"font-family:arial,verdana,helvetica,sans-serif; height:auto; background-color:rgb(228,240,248); margin:0px; padding:0px 20px; font-size:14px\">\n<p class=\"NOI0\" style=\"margin:13pt 0cm\">&nbsp;<span style=\"font-size:14px\"><span style=\"font-family:\u5b8b\u4f53\">\u7b2c\u4e00\u884c\u5305\u542b\u4e24\u4e2a\u6b63\u6574\u6570<\/span><span lang=\"EN-US\"><span style=\"position:relative; top:3pt\"><span style=\"font-family:Times New Roman\">M<\/span><\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\u548c<\/span><span lang=\"EN-US\"><span style=\"position:relative; top:3pt\"><span style=\"font-family:Times New Roman\">N<\/span><\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\uff1b<\/span><\/span><\/p>\n<p class=\"NOI1\" style=\"margin:0cm 0cm 0pt\"><span style=\"font-size:14px\"><span style=\"font-family:\u5b8b\u4f53\">\u4e0b\u9762<\/span><span lang=\"EN-US\"><span style=\"position:relative; top:3pt\"><span style=\"font-family:Times New Roman\">M<\/span><\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\u884c\u6bcf\u884c<\/span><span lang=\"EN-US\"><span style=\"position:relative; top:3pt\"><span style=\"font-family:Times New Roman\">N<\/span><\/span><\/span><span style=\"font-family:\u5b8b\u4f53\">\u4e2a\u6b63\u6574\u6570\u63cf\u8ff0\u5730\u56fe\uff0c\u6bcf\u4e2a\u6570\u5b57\u8868\u793a\u76f8\u5e94\u4f4d\u7f6e\u7684\u5730\u6d1e\u4e2d\u5730\u9f20\u7684\u6570\u91cf\u3002<\/span><\/span><\/p>\n<p class=\"NOI1\" style=\"margin:0cm 0cm 0pt\">\n<\/p>\n<\/div>\n<h2 style=\"font-family:arial,verdana,helvetica,sans-serif; color:blue\">Output<\/h2>\n<div class=\"content\" style=\"font-family:arial,verdana,helvetica,sans-serif; height:auto; background-color:rgb(228,240,248); margin:0px; padding:0px 20px; font-size:14px\">\n<p class=\"NOI1\" style=\"margin:0cm 0cm 0pt\"><span style=\"font-family:\u5b8b\u4f53\"><span style=\"font-size:14px; font-family:arial,verdana,helvetica,sans-serif!important\">\u8f93\u51fa\u4e00\u4e2a\u6574\u6570\uff0c\u8868\u793a\u6700\u5c11\u7684\u6325\u821e\u6b21\u6570\u3002<\/span><\/span><\/p>\n<p class=\"NOI2\" style=\"margin:0cm 0cm 0pt\">\n<\/p>\n<\/div>\n<h2 style=\"font-family:arial,verdana,helvetica,sans-serif; color:blue\">Sample Input<\/h2>\n<div class=\"content\" style=\"font-family:arial,verdana,helvetica,sans-serif; height:auto; background-color:rgb(228,240,248); margin:0px; padding:0px 20px; font-size:14px\">\n<span class=\"sampledata\" style=\"font-family:monospace; white-space:pre; background-color:rgb(141,184,255); font-size:18px\">3 3<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n1 2 1<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n2 4 2<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n1 2 1<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n<\/span><\/div>\n<h2 style=\"font-family:arial,verdana,helvetica,sans-serif; color:blue\">Sample Output<\/h2>\n<div class=\"content\" style=\"font-family:arial,verdana,helvetica,sans-serif; height:auto; background-color:rgb(228,240,248); margin:0px; padding:0px 20px; font-size:14px\">\n<span class=\"sampledata\" style=\"font-family:monospace; white-space:pre; background-color:rgb(141,184,255); font-size:18px\"><br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n4<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n\u3010\u6837\u4f8b\u8bf4\u660e\u3011<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n\u4f7f\u75282*2\u7684\u9524\u5b50\uff0c\u5206\u522b\u5728\u5de6\u4e0a\u3001\u5de6\u4e0b\u3001\u53f3\u4e0a\u3001\u53f3\u4e0b\u6325\u821e\u4e00\u6b21\u3002<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n\u3010\u6570\u636e\u89c4\u6a21\u548c\u7ea6\u5b9a\u3011<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n\u5bf9\u4e8e100%\u7684\u6570\u636e\uff0c1&lt;=M,N&lt;=100\uff0c\u5176\u4ed6\u6570\u636e\u4e0d\u5c0f\u4e8e0\uff0c\u4e0d\u5927\u4e8e10^5<br style=\"font-family:arial,verdana,helvetica,sans-serif!important\" \/><br \/>\n<\/span><\/div>\n<p>\n<\/p>\n<p><span style=\"font-size:14px\">\u4e8c\u5206\u5224\u65ad&#43;\u8d2a\u5fc3<\/span><\/p>\n<p>\n<\/p>\n<p><pre name=\"code\" class=\"cpp\">#include&lt;cstdio&gt;\n#include&lt;cstring&gt;\n#include&lt;cstdlib&gt;\n#include&lt;algorithm&gt;\n#include&lt;functional&gt;\n#include&lt;iostream&gt;\n#define MAXN (100+10)\n#define INF (1000000000)\n#define For(i,n) for(int i=1;i&lt;=n;i++)\nusing namespace std;\nint n,m,a[MAXN][MAXN],a2[MAXN][MAXN];\nint is_ok(int l,int r)\n{\n\tmemcpy(a2,a,sizeof(a));\n\tint sum=0;\n\tFor(i,n-l+1) For(j,m-r+1)\n\t\tif(a2[i][j])\n\t\t{\n\t\t\tint delta=a2[i][j];sum+=delta;\n\t\t\tfor (int k=i;k&lt;=i+l-1;k++)\n\t\t\t\tfor (int k2=j;k2&lt;=j+r-1;k2++)\n\t\t\t\t\tif (a2[k][k2]&lt;delta) return 0;\n\t\t\t\t\telse a2[k][k2]-=delta;\n\t\t}\n\treturn sum;\n}\nint main()\n{\n\tscanf(&quot;%d%d&quot;,&amp;n,&amp;m);\n\tint cnt=0,ans=0;\n\tFor(i,n) For(j,m) {scanf(&quot;%d&quot;,&amp;a[i][j]);cnt+=a[i][j];}\n\tFor(i,n) For(j,m)\n\t{\n\t\tif (i*j&lt;ans) continue;\n\t\tif (!(cnt%(i*j))&amp;&amp;is_ok(i,j)*i*j==cnt)\n\t\t{\n\t\t\tans=i*j;\n\t\t}\n\t}\n\tcout&lt;&lt;cnt\/ans&lt;&lt;endl;\n\treturn 0;\n}<\/pre>\n<\/p>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Description \u6253\u5730\u9f20\u662f\u8fd9\u6837\u7684\u4e00\u4e2a\u6e38\u620f\uff1a\u5730\u9762\u4e0a\u6709\u4e00\u4e9b\u5730\u9f20\u6d1e\uff0c\u5730\u9f20\u4eec\u4f1a\u4e0d\u65f6\u4ece\u6d1e\u91cc\u63a2\u51fa\u5934\u6765\u5f88\u77ed\u65f6\u95f4\u540e\u53c8\u7f29\u56de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[3],"tags":[55],"class_list":["post-375","post","type-post","status-publish","format-standard","hentry","category-defaultcategory","tag-dichotomy"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>BZOJ 2241([SDOI2011]\u6253\u5730\u9f20-\u4e8c\u5206\u5224\u65ad+\u8d2a\u5fc3) - nike0good<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nike0good.com\/?p=375\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"BZOJ 2241([SDOI2011]\u6253\u5730\u9f20-\u4e8c\u5206\u5224\u65ad+\u8d2a\u5fc3) - nike0good\" \/>\n<meta property=\"og:description\" content=\"Description \u6253\u5730\u9f20\u662f\u8fd9\u6837\u7684\u4e00\u4e2a\u6e38\u620f\uff1a\u5730\u9762\u4e0a\u6709\u4e00\u4e9b\u5730\u9f20\u6d1e\uff0c\u5730\u9f20\u4eec\u4f1a\u4e0d\u65f6\u4ece\u6d1e\u91cc\u63a2\u51fa\u5934\u6765\u5f88\u77ed\u65f6\u95f4\u540e\u53c8\u7f29\u56de [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nike0good.com\/?p=375\" \/>\n<meta property=\"og:site_name\" content=\"nike0good\" \/>\n<meta property=\"article:published_time\" content=\"2013-03-28T05:28:00+00:00\" \/>\n<meta name=\"author\" content=\"nike0good\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"nike0good\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" 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