Compilare: user.cpp: In member function ‘void Retea::Make_Graph(std::vector<double>, std::vector<std::pair<double, double> >)’: user.cpp:36:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < B.size() - 1; ++i) ^ user.cpp:37:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i + 1; j < B.size(); ++j) { ^ user.cpp: In member function ‘std::vector<double> Retea::Cost(std::vector<std::pair<double, double> >, std::vector<std::pair<double, double> >, int&)’: user.cpp:47:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < B.size(); ++i) ^ user.cpp:48:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < C.size(); ++j) { ^ user.cpp: In member function ‘double Retea::Get_Min_Cost(std::vector<double>, int)’: user.cpp:74:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < D.size(); ++i) cost += D[i]; ^ user.cpp: In function ‘int main()’: user.cpp:86:30: warning: unused variable ‘Graph’ [-Wunused-variable] std :: vector < MUCHIE > Graph[Max_Size]; ^