View Compilation Error

0_0_14851490_21846.cpp: In function 'void dfs1(int)':
0_0_14851490_21846.cpp:66:19: error: 'node' was not declared in this scope
     for(int i=0;i<node[u].size();i++)  
                   ^
0_0_14851490_21846.cpp: In function 'int main()':
0_0_14851490_21846.cpp:130:25: error: 'node' was not declared in this scope
   for(int i=1;i<=nn;i++)node[i].clear();
                         ^
0_0_14851490_21846.cpp:134:6: error: 'node' was not declared in this scope
      node[link[i]].push_back(j);
      ^