Eroare de compilare: user.cpp: In function ‘void DFs(const int&)’: user.cpp:32:13: error: reference to ‘prev’ is ambiguous prev[Node] = *it; ^ user.cpp:22:5: note: candidates are: int prev [20005] int prev[MAXN]; ^ In file included from /usr/local/include/c++/4.8.0/bits/stl_algobase.h:66:0, from /usr/local/include/c++/4.8.0/bits/char_traits.h:39, from /usr/local/include/c++/4.8.0/string:40, from /usr/local/include/c++/4.8.0/bitset:47, from user.cpp:2: /usr/local/include/c++/4.8.0/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: In function ‘int main()’: user.cpp:64:32: error: reference to ‘prev’ is ambiguous Path.push_back(prev[pion]); ^ user.cpp:22:5: note: candidates are: int prev [20005] int prev[MAXN]; ^ In file included from /usr/local/include/c++/4.8.0/bits/stl_algobase.h:66:0, from /usr/local/include/c++/4.8.0/bits/char_traits.h:39, from /usr/local/include/c++/4.8.0/string:40, from /usr/local/include/c++/4.8.0/bitset:47, from user.cpp:2: /usr/local/include/c++/4.8.0/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 ^