Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:52:27: error: ‘sort’ was not declared in this scope sort(vec+1, vec+n+1, comp); ^ user.cpp:71:43: error: no matching function for call to ‘lower_bound(linie*, linie*, linie&, bool (&)(linie, linie))’ pos=lower_bound(vec+1, vec+n+1, LN, comp)-vec; ^ user.cpp:71:43: note: candidate is: In file included from /usr/include/c++/4.8/bits/char_traits.h:39:0, 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_algobase.h:943:5: note: template<class _ForwardIterator, class _Tp> _ForwardIterator std::lower_bound(_ForwardIterator, _ForwardIterator, const _Tp&) lower_bound(_ForwardIterator __first, _ForwardIterator __last, ^ /usr/include/c++/4.8/bits/stl_algobase.h:943:5: note: template argument deduction/substitution failed: user.cpp:71:43: note: candidate expects 3 arguments, 4 provided pos=lower_bound(vec+1, vec+n+1, LN, comp)-vec; ^