Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:49:12: error: reference to ‘prev’ is ambiguous prev = C[i] - j; ^ user.cpp:14:25: note: candidates are: int prev int st[Nmax], dr[Nmax], prev; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/vector:60, from user.cpp:4: /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:50:16: error: reference to ‘prev’ is ambiguous if (prev <= 0) prev += N; ^ user.cpp:14:25: note: candidates are: int prev int st[Nmax], dr[Nmax], prev; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/vector:60, from user.cpp:4: /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:50:27: error: reference to ‘prev’ is ambiguous if (prev <= 0) prev += N; ^ user.cpp:14:25: note: candidates are: int prev int st[Nmax], dr[Nmax], prev; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/vector:60, from user.cpp:4: /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:52:22: error: reference to ‘prev’ is ambiguous while (st[prev]<dr[prev] && T[i] - T[ Q[prev][ st[prev] ] ] > (N+1)>>1) ++st[prev]; ^ user.cpp:14:25: note: candidates are: int prev int st[Nmax], dr[Nmax], prev; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/vector:60, from user.cpp:4: /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:52:31: error: reference to ‘prev’ is ambiguous