Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:31:15: error: no match for ‘operator=’ (operand types are ‘std::vector<int>::iterator {aka __gnu_cxx::__normal_iterator<int*, std::vector<int> >}’ and ‘std::multiset<int>::iterator {aka std::_Rb_tree_const_iterator<int>}’) for(it=v[i].begin();it!=v[i].end();it++) ^ user.cpp:31:15: note: candidates are: In file included from /usr/local/include/c++/4.8.0/bits/stl_algobase.h:67:0, from /usr/local/include/c++/4.8.0/vector:60, from user.cpp:2: /usr/local/include/c++/4.8.0/bits/stl_iterator.h:708:11: note: __gnu_cxx::__normal_iterator<int*, std::vector<int> >& __gnu_cxx::__normal_iterator<int*, std::vector<int> >::operator=(const __gnu_cxx::__normal_iterator<int*, std::vector<int> >&) class __normal_iterator ^ /usr/local/include/c++/4.8.0/bits/stl_iterator.h:708:11: note: no known conversion for argument 1 from ‘std::multiset<int>::iterator {aka std::_Rb_tree_const_iterator<int>}’ to ‘const __gnu_cxx::__normal_iterator<int*, std::vector<int> >&’ /usr/local/include/c++/4.8.0/bits/stl_iterator.h:708:11: note: __gnu_cxx::__normal_iterator<int*, std::vector<int> >& __gnu_cxx::__normal_iterator<int*, std::vector<int> >::operator=(__gnu_cxx::__normal_iterator<int*, std::vector<int> >&&) /usr/local/include/c++/4.8.0/bits/stl_iterator.h:708:11: note: no known conversion for argument 1 from ‘std::multiset<int>::iterator {aka std::_Rb_tree_const_iterator<int>}’ to ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >&&’ user.cpp:31:31: error: no match for ‘operator!=’ (operand types are ‘std::vector<int>::iterator {aka __gnu_cxx::__normal_iterator<int*, std::vector<int> >}’ and ‘std::multiset<int>::iterator {aka std::_Rb_tree_const_iterator<int>}’) for(it=v[i].begin();it!=v[i].end();it++) ^ user.cpp:31:31: note: candidates are: In file included from /usr/local/include/c++/4.8.0/bits/stl_algobase.h:64:0, from /usr/local/include/c++/4.8.0/vector:60, from user.cpp:2: /usr/local/include/c++/4.8.0/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/local/include/c++/4.8.0/bits/stl_pair.h:227:5: note: template argument deduction/substitution failed: user.cpp:31:42: note: ‘std::vector<int>::iterator {aka __gnu_cxx::__normal_iterator<int*, std::vector<int> >}’ is not derived from ‘const std::pair<_T1, _T2>’ for(it=v[i].begin();it!=v[i].end();it++) ^ In file included from /usr/local/include/c++/4.8.0/bits/stl_algobase.h:67:0, from /usr/local/include/c++/4.8.0/vector:60, from user.cpp:2: /usr/local/include/c++/4.8.0/bits/stl_iterator.h:303:5: note: template<class _Iterator> bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&) operator!=(const reverse_iterator<_Iterator>& __x, ^ /usr/local/include/c++/4.8.0/bits/stl_iterator.h:303:5: note: template argument deduction/substitution failed: user.cpp:31:42: note: ‘std::vector<int>::iterator {aka __gnu_cxx::__normal_iterator<int*, std::vector<int> >}’ is not derived from ‘const std::reverse_iterator<_Iterator>’ for(it=v[i].begin();it!=v[i].end();it++) ^ In file included from /usr/local/include/c++/4.8.0/bits/stl_algobase.h:67:0, from /usr/local/include/c++/4.8.0/vector:60, from user.cpp:2: /usr/local/include/c++/4.8.0/bits/stl_iterator.h:353:5: note: template<class _IteratorL, class _IteratorR> bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&) operator!=(const reverse_iterator<_IteratorL>& __x, ^ /usr/local/include/c++/4.8.0/bits/stl_iterator.h:353:5: note: template argument deduction/substitution failed: user.cpp:31:42: note: ‘std::vector<int>::iterator {aka __gnu_cxx::__normal_iterator<int*, std::vector<int> >}’ is not derived from ‘const std::reverse_iterator<_Iterator>’ for(it=v[i].begin();it!=v[i].end();it++) ^ In file included from /usr/local/include/c++/4.8.0/bits/stl_algobase.h:67:0, from /usr/local/include/c++/4.8.0/vector:60,