Compilare: user.cpp: In function ‘bool adauga_legatura(int, int, std::vector<bool>&, merge_find&, std::vector<std::vector<int> >&)’: user.cpp:49:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < culori.size(); ++i){ ^ user.cpp: In function ‘void rezolva_test(std::ifstream&, std::ofstream&)’: user.cpp:69:7: warning: unused variable ‘e_buna’ [-Wunused-variable] bool e_buna = true; ^