Eroare de compilare: user.cpp:12:13: error: variable ‘std::ifstream cin’ has initializer but incomplete type ifstream cin("pang.in"); ^ user.cpp:13:14: error: variable ‘std::ofstream cout’ has initializer but incomplete type ofstream cout("pang.out"); ^ user.cpp: In function ‘int bfs()’: user.cpp:45:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < G[curr_node].size(); i++) { ^ user.cpp: In function ‘int main()’: user.cpp:64:2: error: reference to ‘cin’ is ambiguous cin >> t; ^ user.cpp:12:10: note: candidates are: <typeprefixerror>cin ifstream cin("pang.in"); ^ In file included from user.cpp:2:0: /usr/include/c++/5/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ user.cpp:67:3: error: reference to ‘cin’ is ambiguous cin >> n >> m >> k; ^ user.cpp:12:10: note: candidates are: <typeprefixerror>cin ifstream cin("pang.in"); ^ In file included from user.cpp:2:0: /usr/include/c++/5/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ user.cpp:70:4: error: reference to ‘cin’ is ambiguous cin >> x >> y; ^ user.cpp:12:10: note: candidates are: <typeprefixerror>cin ifstream cin("pang.in"); ^ In file included from user.cpp:2:0: /usr/include/c++/5/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ user.cpp:76:4: error: reference to ‘cin’ is ambiguous cin >> x; ^ user.cpp:12:10: note: candidates are: <typeprefixerror>cin ifstream cin("pang.in"); ^ In file included from user.cpp:2:0: /usr/include/c++/5/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input