Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:143:4: error: reference to ‘prev’ is ambiguous prev[0] = -1; ^ user.cpp:6:45: note: candidates are: unsigned int prev [100000] unsigned int v[100000],n,p,k,i,c,DP[100000],prev[100000],j,maxLength,bestEnd,z,x,ok; ^ 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:145:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < n; i++) ^ user.cpp:148:4: error: reference to ‘prev’ is ambiguous prev[i] = -1; ^ user.cpp:6:45: note: candidates are: unsigned int prev [100000] unsigned int v[100000],n,p,k,i,c,DP[100000],prev[100000],j,maxLength,bestEnd,z,x,ok; ^ 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:154:10: error: reference to ‘prev’ is ambiguous prev[i] = j; ^ user.cpp:6:45: note: candidates are: unsigned int prev [100000] unsigned int v[100000],n,p,k,i,c,DP[100000],prev[100000],j,maxLength,bestEnd,z,x,ok; ^ 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:157:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]