Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:31:9: error: reference to ‘rank’ is ambiguous rank[i] = 1; ^ user.cpp:7:21: note: candidates are: int rank [200001] int parent[200001], rank[200001]; ^ 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/utility:70, from /usr/include/c++/4.8/algorithm:60, from user.cpp:2: /usr/include/c++/4.8/type_traits:1243:12: note: template<class> struct std::rank struct rank ^ user.cpp:36:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < edges.size(); ++i) { ^ user.cpp:40:17: error: reference to ‘rank’ is ambiguous if (rank[rx] > rank[ry]) { ^ user.cpp:7:21: note: candidates are: int rank [200001] int parent[200001], rank[200001]; ^ 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/utility:70, from /usr/include/c++/4.8/algorithm:60, from user.cpp:2: /usr/include/c++/4.8/type_traits:1243:12: note: template<class> struct std::rank struct rank ^ user.cpp:40:28: error: reference to ‘rank’ is ambiguous if (rank[rx] > rank[ry]) { ^ user.cpp:7:21: note: candidates are: int rank [200001] int parent[200001], rank[200001]; ^ 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/utility:70, from /usr/include/c++/4.8/algorithm:60, from user.cpp:2: /usr/include/c++/4.8/type_traits:1243:12: note: template<class> struct std::rank struct rank ^ user.cpp:42:17: error: reference to ‘rank’ is ambiguous rank[rx] += rank[ry]; ^ user.cpp:7:21: note: candidates are: int rank [200001]