Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:33:13: error: reference to ‘prev’ is ambiguous prev[k].push_back(linie); ^ user.cpp:15:25: note: candidates are: std::vector<std::vector<Point> > prev [100] vector< vector<Point> > prev[100]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/bits/char_traits.h:39, 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_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type) prev(_BidirectionalIterator __x, typename ^ user.cpp:56:17: error: reference to ‘prev’ is ambiguous prev[k][i][j] = p; ^ user.cpp:15:25: note: candidates are: std::vector<std::vector<Point> > prev [100] vector< vector<Point> > prev[100]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/bits/char_traits.h:39, 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_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type) prev(_BidirectionalIterator __x, typename ^ user.cpp:79:16: error: reference to ‘prev’ is ambiguous pmin = prev[cl][pmin.x][pmin.y]; ^ user.cpp:15:25: note: candidates are: std::vector<std::vector<Point> > prev [100] vector< vector<Point> > prev[100]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/bits/char_traits.h:39, 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_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type) prev(_BidirectionalIterator __x, typename ^ user.cpp:76:9: warning: unused variable ‘pre’ [-Wunused-variable] int pre, cl = ll; ^