{"id":13,"date":"2016-04-27T20:34:36","date_gmt":"2016-04-27T12:34:36","guid":{"rendered":"http:\/\/tyswly.com\/?p=13"},"modified":"2016-04-27T20:34:36","modified_gmt":"2016-04-27T12:34:36","slug":"noip2013%e8%bd%a6%e7%ab%99%e5%88%86%e7%ba%a7","status":"publish","type":"post","link":"https:\/\/tys.fun\/?p=13","title":{"rendered":"[NOIP2013]\u8f66\u7ad9\u5206\u7ea7"},"content":{"rendered":"<p>\u88ab\u4e00\u9053\u666e\u53ca\u7ec4\u7684\u9898\u5361\u4e86\u8fd9\u4e48\u957f\u65f6\u95f4\uff0c\u4e0d\u5f00\u5fc3\u3002\u8c03\u4e86\u4e24\u4e09\u5929\uff0c\u53d1\u73b0cnt=0;\u653e\u9519\u4f4d\u7f6e\u4e86\u3002<a href=\"https:\/\/i0.wp.com\/2.bp.blogspot.com\/-k37K7WEeSQs\/Vx9mUAewNsI\/AAAAAAAAADQ\/Sucb8aASpTcpH2sLNHTpgN9VswsH0vMCwCK4B\/s1600\/QQ%25E5%259B%25BE%25E7%2589%258720160426205958.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/2.bp.blogspot.com\/-k37K7WEeSQs\/Vx9mUAewNsI\/AAAAAAAAADQ\/Sucb8aASpTcpH2sLNHTpgN9VswsH0vMCwCK4B\/s320\/QQ%25E5%259B%25BE%25E7%2589%258720160426205958.jpg?resize=320%2C207&#038;ssl=1\" width=\"320\" height=\"207\" border=\"0\" \/><\/a><br \/>\n\u81f3\u4e8e\u539f\u9898\uff0c<a href=\"http:\/\/cogs.pro\/cogs\/problem\/problem.php?pid=1444\">COGS<\/a><br \/>\n\u7ecf\uff08\u7b80\uff09\u5178\uff08\u5355\uff09\u7684\u62d3\u6251\u6392\u5e8f\uff0c\u6570\u636e\u8303\u56f4\u8fd8\u8fd9\u4e48\u5c0f\u3002\u3002\u3002<\/p>\n<pre class=\"lang:c++ decode:true \">#include &lt;iostream&gt;\n#include &lt;cstdio&gt;\n#include &lt;cstring&gt;\n#include &lt;queue&gt;\n#include &lt;vector&gt;\nusing namespace std;\nqueue &lt;int&gt; q;\nint n, m, in[1005], b[1005],level;\nbool map[1005][1005], a[1005];\ninline int get_num()\n{\n\tint ans = 0;\n\tchar tmp;\n\ttmp = getchar();\n\twhile (tmp &gt; '9' || tmp &lt; '0')\ttmp = getchar();\n\twhile (tmp &lt;= '9'&amp;&amp;tmp &gt;= '0')\n\t{\n\t\tans = ans * 10 + tmp - 48;\n\t\ttmp = getchar();\n\t}\n\treturn ans;\n}\nint main()\n{\n\tfreopen(\"level2013.in\", \"r\", stdin);\n\tfreopen(\"level2013.out\", \"w\", stdout);\n\tint si, tmp, cnt;\n\tn = get_num();\n\tm = get_num();\n\tfor (int i = 1; i &lt;= m; i++)\n\t{\n\t\tcnt = 0;\n\t\tsi = get_num();\n\t\tmemset(a, 0, sizeof(a));\n\t\tfor (int j = 1; j &lt;= si; j++)\n\t\t{\n\t\t\ttmp = get_num();\n\t\t\tb[++cnt] = tmp;\n\t\t\ta[tmp] = true;\n\t\t}\n\t\tfor (int j = b[1]; j &lt;= b[cnt]; j++)\n\t\t{\n\t\t\tif (!a[j])\n\t\t\t{\n\t\t\t\tfor (int k = 1; k &lt;= cnt; k++)\n\t\t\t\t{\n\t\t\t\t\tif (!map[j][b[k]])\n\t\t\t\t\t{\n\t\t\t\t\t\tmap[j][b[k]] = 1;\n\t\t\t\t\t\tin[b[k]]++;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\tfor (int i = 1; i &lt;= n; i++)\n\t{\n\t\tif (!in[i])\n\t\t\tq.push(i);\n\t}\n\twhile (!q.empty())\n\t{\n\t\tsi = q.size();\n\t\tlevel++;\n\t\tfor (int i = 1; i &lt;= si; i++)\n\t\t{\n\t\t\tint ti = q.front();\n\t\t\tq.pop();\n\t\t\tfor (int j = 1; j &lt;= n; j++)\n\t\t\t{\n\t\t\t\tif (map[ti][j])\n\t\t\t\t{\n\t\t\t\t\tin[j]--;\n\t\t\t\t\tif (!in[j])\n\t\t\t\t\t\tq.push(j);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\tcout &lt;&lt; level &lt;&lt; \"\\n\";\n\treturn 0;\n}<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u88ab\u4e00\u9053\u666e\u53ca\u7ec4\u7684\u9898\u5361\u4e86\u8fd9\u4e48\u957f\u65f6\u95f4\uff0c\u4e0d\u5f00\u5fc3\u3002\u8c03\u4e86\u4e24\u4e09\u5929\uff0c\u53d1\u73b0cnt=0;\u653e\u9519\u4f4d\u7f6e\u4e86\u3002 \u81f3\u4e8e\u539f\u9898\uff0cCOGS \u7ecf\uff08\u7b80\uff09 &hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-13","post","type-post","status-publish","format-standard","hentry","category-report"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/tys.fun\/index.php?rest_route=\/wp\/v2\/posts\/13","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tys.fun\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tys.fun\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tys.fun\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tys.fun\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=13"}],"version-history":[{"count":0,"href":"https:\/\/tys.fun\/index.php?rest_route=\/wp\/v2\/posts\/13\/revisions"}],"wp:attachment":[{"href":"https:\/\/tys.fun\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tys.fun\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tys.fun\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}