Eroare de compilare: In file included from /usr/include/c++/4.4/algorithm:62, from user.cpp:3: /usr/include/c++/4.4/bits/stl_algo.h: In function ‘void std::sort(_RAIter, _RAIter) [with _RAIter = std::_Rb_tree_iterator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv> >]’: user.cpp:44: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:5220: error: no match for ‘operator-’ in ‘__last - __first’ /usr/include/c++/4.4/bits/stl_bvector.h:179: note: candidates are: ptrdiff_t std::operator-(const std::_Bit_iterator_base&, const std::_Bit_iterator_base&) /usr/include/c++/4.4/bits/stl_algo.h: In function ‘void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = std::_Rb_tree_iterator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv> >]’: /usr/include/c++/4.4/bits/stl_algo.h:5222: instantiated from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = std::_Rb_tree_iterator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv> >]’ user.cpp:44: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:2176: error: no match for ‘operator-’ in ‘__last - __first’ /usr/include/c++/4.4/bits/stl_bvector.h:179: note: candidates are: ptrdiff_t std::operator-(const std::_Bit_iterator_base&, const std::_Bit_iterator_base&) /usr/include/c++/4.4/bits/stl_algo.h:2178: error: no match for ‘operator+’ in ‘__first + 16’ /usr/include/c++/4.4/bits/stl_bvector.h:264: note: candidates are: std::_Bit_iterator std::operator+(ptrdiff_t, const std::_Bit_iterator&) /usr/include/c++/4.4/bits/stl_bvector.h:350: note: std::_Bit_const_iterator std::operator+(ptrdiff_t, const std::_Bit_const_iterator&) /usr/include/c++/4.4/bits/stl_algo.h:2179: error: no match for ‘operator+’ in ‘__first + 16’ /usr/include/c++/4.4/bits/stl_bvector.h:264: note: candidates are: std::_Bit_iterator std::operator+(ptrdiff_t, const std::_Bit_iterator&) /usr/include/c++/4.4/bits/stl_bvector.h:350: note: std::_Bit_const_iterator std::operator+(ptrdiff_t, const std::_Bit_const_iterator&) /usr/include/c++/4.4/bits/stl_algo.h: In function ‘void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = std::_Rb_tree_iterator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv> >]’: /usr/include/c++/4.4/bits/stl_algo.h:2182: instantiated from ‘void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = std::_Rb_tree_iterator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv> >]’ /usr/include/c++/4.4/bits/stl_algo.h:5222: instantiated from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = std::_Rb_tree_iterator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv> >]’ user.cpp:44: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:2102: error: no match for ‘operator+’ in ‘__first + 1’ /usr/include/c++/4.4/bits/stl_bvector.h:264: note: candidates are: std::_Bit_iterator std::operator+(ptrdiff_t, const std::_Bit_iterator&) /usr/include/c++/4.4/bits/stl_bvector.h:350: note: std::_Bit_const_iterator std::operator+(ptrdiff_t, const std::_Bit_const_iterator&) /usr/include/c++/4.4/bits/stl_algo.h:2182: instantiated from ‘void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = std::_Rb_tree_iterator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv> >]’ /usr/include/c++/4.4/bits/stl_algo.h:5222: instantiated from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = std::_Rb_tree_iterator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv> >]’ user.cpp:44: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:2108: error: no match for ‘operator+’ in ‘__i + 1’ /usr/include/c++/4.4/bits/stl_bvector.h:264: note: candidates are: std::_Bit_iterator std::operator+(ptrdiff_t, const std::_Bit_iterator&) /usr/include/c++/4.4/bits/stl_bvector.h:350: note: std::_Bit_const_iterator std::operator+(ptrdiff_t, const std::_Bit_const_iterator&) In file included from /usr/include/c++/4.4/bits/stl_algobase.h:66, from /usr/include/c++/4.4/bits/char_traits.h:41, from /usr/include/c++/4.4/ios:41, from /usr/include/c++/4.4/ostream:40, from /usr/include/c++/4.4/iostream:40, from user.cpp:1: /usr/include/c++/4.4/bits/stl_pair.h: In member function ‘std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv>& std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv>::operator=(const std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv>&)’: /usr/include/c++/4.4/bits/stl_pair.h:68: error: non-static const member ‘const std::basic_string<char, std::char_traits<char>, std::allocator<char> > std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv>::first’, can't use default assignment operator In file included from /usr/include/c++/4.4/algorithm:62, from user.cpp:3: /usr/include/c++/4.4/bits/stl_algo.h: In function ‘void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = std::_Rb_tree_iterator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv> >]’: /usr/include/c++/4.4/bits/stl_algo.h:2182: instantiated from ‘void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = std::_Rb_tree_iterator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv> >]’ /usr/include/c++/4.4/bits/stl_algo.h:5222: instantiated from ‘void std::sort(_RAIter, _RAIter) [with _RAIter = std::_Rb_tree_iterator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv> >]’ user.cpp:44: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:2109: note: synthesized method ‘std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv>& std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv>::operator=(const std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Cuv>&)’ first required here In file included from /usr/include/c++/4.4/bits/stl_algobase.h:66, from /usr/include/c++/4.4/bits/char_traits.h:41, from /usr/include/c++/4.4/ios:41, from /usr/include/c++/4.4/ostream:40, from /usr/include/c++/4.4/iostream:40,