Eroare de compilare: main.cpp: In function 'int main()': main.cpp:38:17: error: reference to 'next' is ambiguous if (next[x] == 0) ^~~~ main.cpp:12:7: note: candidates are: int next [1000010] int n,next[dim],a[dim],b[dim],c[dim],ans[dim]; ^~~~ In file included from /usr/include/c++/6/bits/stl_algobase.h:66:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from main.cpp:1: /usr/include/c++/6/bits/stl_iterator_base_funcs.h:205:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^~~~ main.cpp:41:17: error: reference to 'next' is ambiguous next[x] = dr+1; ^~~~ main.cpp:12:7: note: candidates are: int next [1000010] int n,next[dim],a[dim],b[dim],c[dim],ans[dim]; ^~~~ In file included from /usr/include/c++/6/bits/stl_algobase.h:66:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from main.cpp:1: /usr/include/c++/6/bits/stl_iterator_base_funcs.h:205:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^~~~ main.cpp:46:21: error: reference to 'next' is ambiguous x = next[x]; ^~~~ main.cpp:12:7: note: candidates are: int next [1000010] int n,next[dim],a[dim],b[dim],c[dim],ans[dim]; ^~~~ In file included from /usr/include/c++/6/bits/stl_algobase.h:66:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/ostream:38, from /usr/include/c++/6/iostream:39, from main.cpp:1: /usr/include/c++/6/bits/stl_iterator_base_funcs.h:205:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^~~~ main.cpp:16:11: warning: unused variable 'j' [-Wunused-variable] int i,j; ^ main.cpp:18:9: warning: unused variable 'a_nou' [-Wunused-variable] Non zero exit status: 1