Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:25:11: error: reference to ‘next’ is ambiguous while (next[j] && j<=dr) j=next[j]; ^ user.cpp:8:38: note: candidates are: int next [1000005] int a[1000005],b[1000005],c[1000005],next[1000005],sol[1000005]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/algorithm:61, from user.cpp:2: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp:25:31: error: reference to ‘next’ is ambiguous while (next[j] && j<=dr) j=next[j]; ^ user.cpp:8:38: note: candidates are: int next [1000005] int a[1000005],b[1000005],c[1000005],next[1000005],sol[1000005]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/algorithm:61, from user.cpp:2: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp:28:5: error: reference to ‘next’ is ambiguous next[j]=dr+1; ^ user.cpp:8:38: note: candidates are: int next [1000005] int a[1000005],b[1000005],c[1000005],next[1000005],sol[1000005]; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0, from /usr/include/c++/4.8/algorithm:61, from user.cpp:2: /usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp:13:47: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f,"%d%d%d%d",&n,&a[1],&b[1],&c[1]); ^