Eroare de compilare: user.cpp: In function ‘void add_edge(int, int)’: user.cpp:16:5: error: reference to ‘next’ is ambiguous next[ last[x] ]= ++nrn; ^ user.cpp:8:46: note: candidates are: int next [250010] int n,m, str[MX][20], nr_stram[MX], val[MX], next[MX], first[MX], last[MX], nrn ; ^ 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:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp: In function ‘void DFS()’: user.cpp:40:24: error: reference to ‘next’ is ambiguous else st[k].it= next[ st[k].it ]; ^ user.cpp:8:46: note: candidates are: int next [250010] int n,m, str[MX][20], nr_stram[MX], val[MX], next[MX], first[MX], last[MX], nrn ; ^ 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:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^