{"id":537,"date":"2018-12-30T11:49:47","date_gmt":"2018-12-30T03:49:47","guid":{"rendered":"http:\/\/SmokeyDays.top\/wordpress\/?p=537"},"modified":"2018-12-30T11:49:47","modified_gmt":"2018-12-30T03:49:47","slug":"lp5145-%e6%bc%82%e6%b5%ae%e7%9a%84%e9%b8%ad%e5%ad%90","status":"publish","type":"post","link":"http:\/\/SmokeyDays.top\/wordpress\/2018\/12\/30\/lp5145-%e6%bc%82%e6%b5%ae%e7%9a%84%e9%b8%ad%e5%ad%90\/","title":{"rendered":"lp5145 \u6f02\u6d6e\u7684\u9e2d\u5b50"},"content":{"rendered":"\n<p>\u4e00\u9053tarjan\u7f29\u70b9\u7684\u88f8\u9898\u3002<br>\n\u6211\u4eec\u4ecd\u7136\u53ef\u4ee5\u8003\u8651\u4e00\u4e2a\u5f88\u6709\u8da3\u7684\u505a\u6cd5\u3002\u90a3\u5c31\u662f\uff0c\u628a\u975e\u73af\u8fb9\u5220\u53bb\uff0c\u7136\u540e\u7edf\u8ba1\u73af\u7684\u8fb9\u6743\u3002 <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include&lt;iostream>\n#include&lt;cstdio>\n\nstruct ee{\n\tint v;\n\tint w;\n}e[100005];\n\nint n,in[100005];\nbool vis[100005];\n\nvoid init(){\n\tscanf(\"%d\",&amp;n);\n\tint v,w;\n\tfor(int i=1;i&lt;=n;++i){\n\t\tscanf(\"%d%d\",&amp;v,&amp;w);\n\t\te[i]=(ee){v,w};\n\t\t++in[v];\n\t}\n\tint ans=0,x,nw;\n\tfor(int i=1;i&lt;=n;++i){\n\t\tx=i;\n\t\twhile(!in[x]&amp;&amp;!vis[x]){\n\t\t\tvis[x]=1;\n\t\t\t--in[e[x].v];\n\t\t\tx=e[x].v;\n\t\t}\n\t}\n\tfor(int i=1;i&lt;=n;++i){\n\t\tif(!vis[i]){\n\t\t\tnw=e[i].w;\n\t\t\tx=e[i].v;\n\t\t\tvis[i]=1;\n\t\t\twhile(x!=i){\n\t\t\t\tvis[x]=1;\n\t\t\t\tnw+=e[x].w;\n\t\t\t\tx=e[x].v;\n\t\t\t}\n\t\t\tans=std::max(ans,nw);\n\t\t}\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>\u4e00\u9053tarjan\u7f29\u70b9\u7684\u88f8\u9898\u3002 \u6211\u4eec\u4ecd\u7136\u53ef\u4ee5\u8003\u8651\u4e00\u4e2a\u5f88\u6709\u8da3\u7684\u505a\u6cd5\u3002\u90a3\u5c31\u662f\uff0c\u628a\u975e\u73af\u8fb9\u5220\u53bb\uff0c\u7136\u540e\u7edf\u8ba1\u73af\u7684\u8fb9\u6743\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[30,8,53,6,5],"tags":[],"_links":{"self":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/537"}],"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=537"}],"version-history":[{"count":1,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/537\/revisions"}],"predecessor-version":[{"id":538,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/posts\/537\/revisions\/538"}],"wp:attachment":[{"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/media?parent=537"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/categories?post=537"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/SmokeyDays.top\/wordpress\/wp-json\/wp\/v2\/tags?post=537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}