Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:50:5: error: reference to ‘rank’ is ambiguous rank.resize(n + 1); ^ user.cpp:17:14: note: candidates are: std::vector<int> rank vector <int> rank; ^ In file included from /usr/include/c++/4.8/bits/move.h:57:0, from /usr/include/c++/4.8/bits/stl_pair.h:59, from /usr/include/c++/4.8/bits/stl_algobase.h:64, 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/type_traits:1243:12: note: template<class> struct std::rank struct rank ^ user.cpp:61:16: error: reference to ‘rank’ is ambiguous if(rank[v[i].y] <= rank[v[i].x]) { ^ user.cpp:17:14: note: candidates are: std::vector<int> rank vector <int> rank; ^ In file included from /usr/include/c++/4.8/bits/move.h:57:0, from /usr/include/c++/4.8/bits/stl_pair.h:59, from /usr/include/c++/4.8/bits/stl_algobase.h:64, 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/type_traits:1243:12: note: template<class> struct std::rank struct rank ^ user.cpp:61:32: error: reference to ‘rank’ is ambiguous if(rank[v[i].y] <= rank[v[i].x]) { ^ user.cpp:17:14: note: candidates are: std::vector<int> rank vector <int> rank; ^ In file included from /usr/include/c++/4.8/bits/move.h:57:0, from /usr/include/c++/4.8/bits/stl_pair.h:59, from /usr/include/c++/4.8/bits/stl_algobase.h:64, 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/type_traits:1243:12: note: template<class> struct std::rank