Borderou de evaluare (job #101167)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:168:17: error: ‘std::string’ has no member named ‘pop_back’ user.cpp:169:34: error: no match for ‘operator-’ in ‘String[0][0] - SFANT’ user.cpp:169:34: note: candidates are: /usr/include/c++/4.6/bits/stl_iterator.h:321:5: note: template<class _Iterator> typename std::reverse_iterator::difference_type std::operator-(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&) /usr/include/c++/4.6/bits/stl_iterator.h:373:5: note: template<class _IteratorL, class _IteratorR> decltype ((__y.base() - __x.base())) std::operator-(const std::reverse_iterator<_IteratorL>&, const std::reverse_iterator<_IteratorR>&) /usr/include/c++/4.6/bits/stl_iterator.h:1098:5: note: template<class _IteratorL, class _IteratorR> decltype ((__x.base() - __y.base())) std::operator-(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&) /usr/include/c++/4.6/bits/stl_iterator.h:1105:5: note: template<class _Iterator> decltype ((__x.base() - __y.base())) std::operator-(const std::move_iterator<_Iterator>&, const std::move_iterator<_Iterator>&) /usr/include/c++/4.6/bits/stl_iterator.h:890:5: note: template<class _Iterator, class _Container> typename __gnu_cxx::__normal_iterator::difference_type __gnu_cxx::operator-(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&) /usr/include/c++/4.6/bits/stl_iterator.h:878:5: note: template<class _IteratorL, class _IteratorR, class _Container> decltype ((__lhs.base() - __rhs.base())) __gnu_cxx::operator-(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&) user.cpp:171:34: error: no match for ‘operator-’ in ‘String[0][0] - SFANT’ user.cpp:171:34: note: candidates are: /usr/include/c++/4.6/bits/stl_iterator.h:321:5: note: template<class _Iterator> typename std::reverse_iterator::difference_type std::operator-(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&) /usr/include/c++/4.6/bits/stl_iterator.h:373:5: note: template<class _IteratorL, class _IteratorR> decltype ((__y.base() - __x.base())) std::operator-(const std::reverse_iterator<_IteratorL>&, const std::reverse_iterator<_IteratorR>&) /usr/include/c++/4.6/bits/stl_iterator.h:1098:5: note: template<class _IteratorL, class _IteratorR> decltype ((__x.base() - __y.base())) std::operator-(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&) /usr/include/c++/4.6/bits/stl_iterator.h:1105:5: note: template<class _Iterator> decltype ((__x.base() - __y.base())) std::operator-(const std::move_iterator<_Iterator>&, const std::move_iterator<_Iterator>&) /usr/include/c++/4.6/bits/stl_iterator.h:890:5: note: template<class _Iterator, class _Container> typename __gnu_cxx::__normal_iterator::difference_type __gnu_cxx::operator-(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&) /usr/include/c++/4.6/bits/stl_iterator.h:878:5: note: template<class _IteratorL, class _IteratorR, class _Container> decltype ((__lhs.base() - __rhs.base())) __gnu_cxx::operator-(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&) user.cpp:15:31: warning: unused variable ‘p’ [-Wunused-variable]