View Compilation Error

0_0_23803943_27204.cpp: In function 'void Get_Rt(int, int)':
0_0_23803943_27204.cpp:63:17: error: request for member 'v' in 'E[x].std::vector<_Tp, _Alloc>::operator[]<int, std::allocator<int> >(((std::vector<int>::size_type)i))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}'
   int V=E[x][i].v;
                 ^