{"id":541,"date":"2018-12-30T22:06:49","date_gmt":"2018-12-30T14:06:49","guid":{"rendered":"http:\/\/SmokeyDays.top\/wordpress\/?p=541"},"modified":"2018-12-30T22:06:49","modified_gmt":"2018-12-30T14:06:49","slug":"lp5030-%e9%95%bf%e8%84%96%e5%ad%90%e9%b9%bf%e6%94%be%e7%bd%ae","status":"publish","type":"post","link":"http:\/\/SmokeyDays.top\/wordpress\/2018\/12\/30\/lp5030-%e9%95%bf%e8%84%96%e5%ad%90%e9%b9%bf%e6%94%be%e7%bd%ae\/","title":{"rendered":"lp5030 \u957f\u8116\u5b50\u9e7f\u653e\u7f6e"},"content":{"rendered":"\n<p>\u89c2\u5bdf\u8fd9\u4e00\u9898\u7684\u653b\u51fb\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0\u4e00\u4e2a\u7279\u70b9\u2014\u2014\u6240\u6709\u5947\u6570\u884c\u7684\u957f\u9888\u9e7f\u90fd\u653b\u51fb\u4e0d\u5230\u5076\u6570\u884c\u7684\u957f\u9888\u9e7f\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002<br>\n\u6240\u4ee5\uff0c\u6211\u4eec\u5bf9\u5947\u5076\u7684\u957f\u9888\u9e7f\u5206\u5f00\u8003\u8651\uff0c\u8fd9\u663e\u7136\u662f\u4e00\u5f20\u4e8c\u5206\u56fe\u3002<br>\n\u4e8e\u662f\u7c7b\u540c\u4e8e\u9a91\u58eb\u5171\u5b58\u95ee\u9898\uff0c\u6211\u4eec\u5efa\u4e00\u4e2a\u4e8c\u5206\u56fe\uff0c\u8dd1\u5308\u7259\u5229\u3002<br>\n\u5bf9\u4e8e\\(200\\)\u7684\u6570\u636e\u8303\u56f4\uff0c\u5308\u7259\u5229\u7684\u5c0f\u5e38\u6570\u662f\u53ef\u4ee5\u5361\u8fc7\u53bb\u7684\u3002 <br>\n\u4f46\u662fT\u4e86\u4e24\u4e2a\u70b9\uff0c\u83b7\u5f97\u4e8680\u5206\u7684\u597d\u6210\u7ee9\u3002<br>\n\u7136\u540e\u6211\u4eec\u8003\u8651\u4e00\u4e2a\u5bf9\u4e8evis\u6570\u7ec4\u7684\u5e38\u6570\u4f18\u5316\u3002<br>\n\u5bf9\u4e8evis\u6570\u7ec4\uff0c\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cfdep\uff0c\u8868\u793a\u5f53\u524d\u662f\u7b2cdep\u6b21\u5339\u914d\u3002\u8fd9\u6837\u5c31\u4e0d\u5fc5\u6bcf\u6b21\u90fd\u6e05\u7a7avis\u6570\u7ec4\u4e86\u3002<br>\n\u7b2c\u4e8c\u4e2a\u5c31\u662f\uff0c\u7531\u4e8e\u8fde\u7684\u8fb9\u662f\u786e\u5b9a\u7684\uff0c\u6545\u800c\u6211\u4eec\u53ef\u4ee5\u5728\u7ebf\u8ba1\u7b97\u76ee\u7684\u8fb9\uff0c\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u5f88\u591a\u5bfb\u5740\u65f6\u95f4\u3002<br>\n\u53e6\u5916\u5c31\u662f\u5bf9\u56fe\u7684\u904d\u5386\u987a\u5e8f\u7684\u4f18\u5316\u3002\u7528\u4e86\u51fa\u9898\u4eba\u7684\u677e\u677e\u677e\u987a\u5e8f\u4e4b\u540e\u6700\u7ec8\u901a\u8fc7\u6b64\u9898\u3002 <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include&lt;iostream>\n#include&lt;cstdio>\n\nconst int dx[8]={3,3,-3,-3,1,1,-1,-1};\nconst int dy[8]={-1,1,-1,1,3,-3,3,-3};\n\nbool mp[205][205];\nint vis[40405],dep=0;\nint n,m,q,usd[40405];\n\/\/\u6ce8\u610f\u6570\u7ec4\u5927\u5c0f\u3002 \n\ninline int calc(int X,int Y){\n\treturn (X&lt;=0||Y&lt;=0||X>n||Y>m||mp[X][Y])?0:X*m+Y;\n} \n\ninline bool dfs(int X){\n\tint v;\n\tfor(int i=0;i&lt;8;++i){\n\t\tv=calc((X-1)\/m+dx[i],(X-1)%m+1+dy[i]);\n\/\/\t\t\u6ce8\u610f\u8fd8\u539f\u4fe1\u606f\u3002 \n\t\tif(v&amp;&amp;vis[v]!=dep){\n\t\t\tvis[v]=dep;\n\t\t\tif(!usd[v]||dfs(usd[v])){\n\t\t\t\tusd[v]=X;\n\t\t\t\treturn 1;\n\t\t\t}\n\t\t}\n\t}\n\treturn 0;\n}\n\nvoid init(){\n\/\/\tmp[n][m]->mp[x][y] \n\tscanf(\"%d%d%d\",&amp;n,&amp;m,&amp;q);\n\tint x,y;\n\tfor(int i=1;i&lt;=q;++i){\n\t\tscanf(\"%d%d\",&amp;x,&amp;y);\n\t\tmp[x][y]=1;\n\t}\n\tint ans=n*m-q;\n\tfor(int i=1;i&lt;=n;i+=2){\n\t\tfor(int j=1;j&lt;=m;++j){\n\t\t\tif(mp[i][j]){\n\t\t\t\tcontinue;\n\t\t\t}\n\t\t\t++dep;\n\t\t\tans-=dfs(calc(i,j));\n\t\t}\n\t}\n\/\/\tfor(int i=0;i&lt;=n+1;++i){\n\/\/\t\tfor(int j=0;j&lt;=m+1;++j){\n\/\/\t\t\tprintf(\"%2d \",calc(i,j));\n\/\/\t\t}\n\/\/\t\tputs(\"\");\n\/\/\t}\n\tprintf(\"%d\\n\",ans);\n}\n\nint main(){\n\tinit();\n\treturn 0;\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u89c2\u5bdf\u8fd9\u4e00\u9898\u7684\u653b\u51fb\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0\u4e00\u4e2a\u7279\u70b9\u2014\u2014\u6240\u6709\u5947\u6570\u884c\u7684\u957f\u9888\u9e7f\u90fd\u653b\u51fb\u4e0d\u5230\u5076\u6570\u884c\u7684\u957f\u9888\u9e7f\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002 \u6240\u4ee5\uff0c\u6211 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/SmokeyDays.top\/wordpress\/2018\/12\/30\/lp5030-%e9%95%bf%e8%84%96%e5%ad%90%e9%b9%bf%e6%94%be%e7%bd%ae\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201clp5030 \u957f\u8116\u5b50\u9e7f\u653e\u7f6e\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[65,67,30,76,8,6,75,5],"tags":[],"_links":{"self":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/541"}],"collection":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/comments?post=541"}],"version-history":[{"count":1,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/541\/revisions"}],"predecessor-version":[{"id":542,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/541\/revisions\/542"}],"wp:attachment":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/media?parent=541"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/categories?post=541"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/tags?post=541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}