Compilare: user.cpp: In member function ‘std::vector<double> Retea::Proc(std::vector<std::pair<double, double> >, std::vector<std::pair<double, double> >)’: user.cpp:43:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < D.size(); ++i) D[i] = Get_Distance(Bloc[i], Centrala[0]); ^ user.cpp:45:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Bloc.size(); ++i) ^ user.cpp:46:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 1; j < Centrala.size(); ++j) ^ user.cpp:48:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Bloc.size(); ++i) ^ user.cpp:49:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < Bloc.size(); ++j) ^ user.cpp: In member function ‘double Retea::Get_Min_Cost(std::vector<std::pair<double, double> >, std::vector<double>)’: user.cpp:58:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= Bloc.size(); ++i){ ^ user.cpp:60:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < Bloc.size(); ++j) ^ user.cpp:63:14: warning: ‘nod’ may be used uninitialized in this function [-Wmaybe-uninitialized] D[nod] = -1; ^