Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:41:17: error: reference to ‘prev’ is ambiguous prev[i][j]=i-1; ^ user.cpp:6:30: note: candidates are: int prev [20][1000003] int v[20],n,s,a[20][1000003],prev[20][1000003],x[20]; ^ 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/ostream:38, from /usr/include/c++/4.8/iostream:39, 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:46:17: error: reference to ‘prev’ is ambiguous prev[i][j]=i; ^ user.cpp:6:30: note: candidates are: int prev [20][1000003] int v[20],n,s,a[20][1000003],prev[20][1000003],x[20]; ^ 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/ostream:38, from /usr/include/c++/4.8/iostream:39, 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:63:15: error: reference to ‘prev’ is ambiguous x[prev[n][s]]++; ^ user.cpp:6:30: note: candidates are: int prev [20][1000003] int v[20],n,s,a[20][1000003],prev[20][1000003],x[20]; ^ 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/ostream:38, from /usr/include/c++/4.8/iostream:39, 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:64:18: error: reference to ‘prev’ is ambiguous s-=v[prev[n][s]]; ^ user.cpp:6:30: note: candidates are: int prev [20][1000003]