View Compilation Error

0_0_21702899_3012.cpp: In function 'int main()':
0_0_21702899_3012.cpp:86:10: error: request for member 'push_back' in 'g[i]', which is of non-class type 'int'
     g[i].push_back(getint());
          ^
0_0_21702899_3012.cpp:95:28: error: invalid types 'int[int]' for array subscript
      ans=min(ans,dis(g[a][i],g[b][j]));
                            ^
0_0_21702899_3012.cpp:95:36: error: invalid types 'int[int]' for array subscript
      ans=min(ans,dis(g[a][i],g[b][j]));
                                    ^