Compilare: user.cpp: In function ‘int solve_cod_poz(const std::vector<int>&, const std::vector<int>&, mat<int>&, int, int)’: user.cpp:25:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz >= 0 && poz < gradina.size()){ ^ user.cpp:27:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < pasi.size(); ++i){ ^ user.cpp: In function ‘int gaseste_max(const std::vector<int>&, const std::vector<int>&)’: user.cpp:47:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < gradina.size(); ++i){ ^ user.cpp:53:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < gradina.size(); ++i){ ^