Eroare de compilare: main.cpp: In function 'void dfs(int)': main.cpp:16:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<=g[n].size(); i++) ~^~~~~~~~~~~~~ main.cpp:19:5: error: 'nod' was not declared in this scope nod.push_back(n); ^~~ main.cpp: In function 'int main()': main.cpp:25:5: error: reference to 'cin' is ambiguous cin>>nr_varfuri>>nr_arce; ^~~ main.cpp:6:10: note: candidates are: std::ifstream cin ifstream cin("sortaret.in"); ^~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:29:9: error: reference to 'cin' is ambiguous cin>>x>>y; ^~~ main.cpp:6:10: note: candidates are: std::ifstream cin ifstream cin("sortaret.in"); ^~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:38:15: error: 'nod' was not declared in this scope for(int i=nod.size(); i>=1; i--) ^~~ main.cpp:39:9: error: reference to 'cout' is ambiguous cout<<n[i]<<" "; ^~~~ main.cpp:7:10: note: candidates are: std::ofstream cout ofstream cout("sortaret.out"); ^~~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^~~~ Non zero exit status: 1