Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:46:15: error: no match for ‘operator+’ (operand types are ‘std::vector<reactiv>’ and ‘int’) sort (v, v+N, comp); ^ user.cpp:46:15: 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/bits/char_traits.h:39, from /usr/local/include/c++/4.8.0/ios:40, from /usr/local/include/c++/4.8.0/ostream:38, from /usr/local/include/c++/4.8.0/iostream:39, from user.cpp:1: /usr/local/include/c++/4.8.0/bits/stl_iterator.h:333:5: note: template<class _Iterator> std::reverse_iterator<_Iterator> std::operator+(typename std::reverse_iterator<_Iterator>::difference_type, const std::reverse_iterator<_Iterator>&) operator+(typename reverse_iterator<_Iterator>::difference_type __n, ^ /usr/local/include/c++/4.8.0/bits/stl_iterator.h:333:5: note: template argument deduction/substitution failed: user.cpp:46:16: note: mismatched types ‘const std::reverse_iterator<_Iterator>’ and ‘int’ sort (v, v+N, comp); ^ 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/bits/char_traits.h:39, from /usr/local/include/c++/4.8.0/ios:40, from /usr/local/include/c++/4.8.0/ostream:38, from /usr/local/include/c++/4.8.0/iostream:39, from user.cpp:1: /usr/local/include/c++/4.8.0/bits/stl_iterator.h:1118:5: note: template<class _Iterator> std::move_iterator<_Iterator> std::operator+(typename std::move_iterator<_Iterator>::difference_type, const std::move_iterator<_Iterator>&) operator+(typename move_iterator<_Iterator>::difference_type __n, ^ /usr/local/include/c++/4.8.0/bits/stl_iterator.h:1118:5: note: template argument deduction/substitution failed: user.cpp:46:16: note: mismatched types ‘const std::move_iterator<_Iterator>’ and ‘int’ sort (v, v+N, comp); ^ In file included from /usr/local/include/c++/4.8.0/string:52:0, from /usr/local/include/c++/4.8.0/bits/locale_classes.h:40, from /usr/local/include/c++/4.8.0/bits/ios_base.h:41, from /usr/local/include/c++/4.8.0/ios:42, from /usr/local/include/c++/4.8.0/ostream:38, from /usr/local/include/c++/4.8.0/iostream:39, from user.cpp:1: /usr/local/include/c++/4.8.0/bits/basic_string.h:2365:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_string<_CharT, _Traits, _Alloc> std::operator+(const std::basic_string<_CharT, _Traits, _Alloc>&, const std::basic_string<_CharT, _Traits, _Alloc>&) operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, ^ /usr/local/include/c++/4.8.0/bits/basic_string.h:2365:5: note: template argument deduction/substitution failed: user.cpp:46:16: note: ‘std::vector<reactiv>’ is not derived from ‘const std::basic_string<_CharT, _Traits, _Alloc>’ sort (v, v+N, comp); ^ In file included from /usr/local/include/c++/4.8.0/string:53:0, from /usr/local/include/c++/4.8.0/bits/locale_classes.h:40, from /usr/local/include/c++/4.8.0/bits/ios_base.h:41, from /usr/local/include/c++/4.8.0/ios:42, from /usr/local/include/c++/4.8.0/ostream:38,