Eroare de compilare: main.cpp: In function 'int e(int, int)': main.cpp:27:21: error: reference to 'next' is ambiguous x=e(i+1,next[i]-1); ^~~~ main.cpp:13:7: note: candidates are: int next [100005] int n,next[100005]; ^~~~ 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:28:15: error: reference to 'next' is ambiguous i=next[i]; ^~~~ main.cpp:13:7: note: candidates are: int next [100005] int n,next[100005]; ^~~~ 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:60:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v.size();i++) ~^~~~~~~~~ main.cpp:19:9: warning: unused variable 'nr' [-Wunused-variable] int nr,x,semn,sol,i; ^~ main.cpp: In function 'void check()': main.cpp:76:13: error: reference to 'next' is ambiguous next[st.top()]=i; ^~~~ main.cpp:13:7: note: candidates are: int next [100005] int n,next[100005]; ^~~~ 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: Non zero exit status: 1