Compilare: user.cpp: In function ‘int main()’: user.cpp:23:7: warning: ‘i_max’ may be used uninitialized in this function [-Wmaybe-uninitialized] g << i_max << ' ' << j_max << ' ' << 2*val_max; ^ user.cpp:23:23: warning: ‘j_max’ may be used uninitialized in this function [-Wmaybe-uninitialized] g << i_max << ' ' << j_max << ' ' << 2*val_max; ^