Compilare: user.cpp: In function ‘void bf(int)’: user.cpp:43:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nod].size();i++) ^ user.cpp:15:15: warning: unused variable ‘nou’ [-Wunused-variable] int i,nod,nou,costul,c,energ; ^ user.cpp:15:26: warning: unused variable ‘c’ [-Wunused-variable] int i,nod,nou,costul,c,energ; ^ user.cpp: In function ‘int main()’: user.cpp:99:6: warning: ‘solt’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<solt<<" "<<solk<<'\n'; ^ user.cpp:99:17: warning: ‘solk’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<solt<<" "<<solk<<'\n'; ^