Eroare de compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:28:12: error: no match for ‘operator=’ (operand types are ‘std::vector<std::pair<int, int> >::iterator {aka __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >}’ and ‘std::vector<int>::iterator {aka __gnu_cxx::__normal_iterator<int*, std::vector<int> >}’) for(it = L[nod].begin(); it != L[nod].end(); it ++){ ^ user.cpp:28:12: note: candidates are: In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/bits/stl_iterator.h:708:11: note: __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >& __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >::operator=(const __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >&) class __normal_iterator ^ /usr/include/c++/4.8/bits/stl_iterator.h:708:11: note: no known conversion for argument 1 from ‘std::vector<int>::iterator {aka __gnu_cxx::__normal_iterator<int*, std::vector<int> >}’ to ‘const __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >&’ /usr/include/c++/4.8/bits/stl_iterator.h:708:11: note: __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >& __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >::operator=(__gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >&&) /usr/include/c++/4.8/bits/stl_iterator.h:708:11: note: no known conversion for argument 1 from ‘std::vector<int>::iterator {aka __gnu_cxx::__normal_iterator<int*, std::vector<int> >}’ to ‘__gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >&&’ user.cpp:28:33: error: no match for ‘operator!=’ (operand types are ‘std::vector<std::pair<int, int> >::iterator {aka __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >}’ and ‘std::vector<int>::iterator {aka __gnu_cxx::__normal_iterator<int*, std::vector<int> >}’) for(it = L[nod].begin(); it != L[nod].end(); it ++){ ^ user.cpp:28:33: note: candidates are: In file included from /usr/include/c++/4.8/iosfwd:40:0, from /usr/include/c++/4.8/ios:38, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/bits/postypes.h:221:5: note: template<class _StateT> bool std::operator!=(const std::fpos<_StateT>&, const std::fpos<_StateT>&) operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs) ^ /usr/include/c++/4.8/bits/postypes.h:221:5: note: template argument deduction/substitution failed: user.cpp:28:47: note: ‘std::vector<std::pair<int, int> >::iterator {aka __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >}’ is not derived from ‘const std::fpos<_StateT>’ for(it = L[nod].begin(); it != L[nod].end(); it ++){ ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/bits/stl_pair.h:227:5: note: template<class _T1, class _T2> constexpr bool std::operator!=(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&) operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) ^ /usr/include/c++/4.8/bits/stl_pair.h:227:5: note: template argument deduction/substitution failed: user.cpp:28:47: note: ‘std::vector<std::pair<int, int> >::iterator {aka __gnu_cxx::__normal_iterator<std::pair<int, int>*, std::vector<std::pair<int, int> > >}’ is not derived from ‘const std::pair<_T1, _T2>’ for(it = L[nod].begin(); it != L[nod].end(); it ++){ ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38,