View Compilation Error

0_0_29840340_10449.cpp: In function 'int main()':
0_0_29840340_10449.cpp:58:32: error: 'in' was not declared in this scope
    head[i]=dfn[i]=low[i]=ss[i]=in[i]=0;
                                ^
0_0_29840340_10449.cpp:70:6: error: 'in' was not declared in this scope
      in[scc[e[j].to]]++;
      ^
0_0_29840340_10449.cpp:74:32: error: 'in' was not declared in this scope
   for(int i=1;i<=sccnum;i++)if(in[i]==0)ans+=cost[i];
                                ^