0_0_35822811_16320.cpp:11:7: error: 'N' was not declared in this scope
}edge[N*2];
^
0_0_35822811_16320.cpp:12:10: error: 'N' was not declared in this scope
int head[N],tot;
^
0_0_35822811_16320.cpp:14:9: error: 'N' was not declared in this scope
int dfn[N],low[N];
^
0_0_35822811_16320.cpp:14:16: error: 'N' was not declared in this scope
int dfn[N],low[N];
^
0_0_35822811_16320.cpp:15:10: error: 'N' was not declared in this scope
bool vis[N];//标记数组
^
0_0_35822811_16320.cpp:16:9: error: 'N' was not declared in this scope
int scc[N];//记录结点i属于哪个强连通分量
^
0_0_35822811_16320.cpp: In function 'void init()':
0_0_35822811_16320.cpp:24:12: error: 'head' was not declared in this scope
memset(head,-1,sizeof(head));
^
0_0_35822811_16320.cpp:25:12: error: 'vis' was not declared in this scope
memset(vis,0,sizeof(vis));
^
0_0_35822811_16320.cpp:26:12: error: 'dfn' was not declared in this scope
memset(dfn,0,sizeof(dfn));
^
0_0_35822811_16320.cpp:27:12: error: 'low' was not declared in this scope
memset(low,0,sizeof(low));
^
0_0_35822811_16320.cpp:28:12: error: 'scc' was not declared in this scope
memset(scc,0,sizeof(scc));
^
0_0_35822811_16320.cpp: In function 'void addEdge(int, int)':
0_0_35822811_16320.cpp:31:5: error: 'edge' was not declared in this scope
edge[++tot].to=to;
^
0_0_35822811_16320.cpp:32:20: error: 'head' was not declared in this scope
edge[tot].next=head[from];
^
0_0_35822811_16320.cpp: In function 'void Tarjan(int)':
0_0_35822811_16320.cpp:36:5: error: 'vis' was not declared in this scope
vis[x]=true;
^
0_0_35822811_16320.cpp:37:5: error: 'dfn' was not declared in this scope
dfn[x]=low[x]=++block_cnt;
^
0_0_35822811_16320.cpp:37:12: error: 'low' was not declared in this scope
dfn[x]=low[x]=++block_cnt;
^
0_0_35822811_16320.cpp:40:15: error: 'head' was not declared in this scope
for(int i=head[x]; i!=-1; i=edge[i].next) {
^
0_0_35822811_16320.cpp:40:33: error: 'edge' was not declared in this scope
for(int i=head[x]; i!=-1; i=edge[i].next) {
^
0_0_35822811_16320.cpp:57:13: error: 'scc' was not declared in this scope
scc[temp]=sig;
^
0_0_35822811_16320.cpp: In function 'int main()':
0_0_35822811_16320.cpp:84:13: error: 'dfn' was not declared in this scope
if(!dfn[i])
^
0_0_35822811_16320.cpp:87:10: error: 'scc' was not declared in this scope
if (scc[i] == scc[i + 3 * n])
^
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