Compilare: user.cpp: In function ‘int main()’: user.cpp:79:11: warning: variable ‘A’ set but not used [-Wunused-but-set-variable] punct A = punct(0, 0); ^ user.cpp:80:11: warning: variable ‘B’ set but not used [-Wunused-but-set-variable] punct B = punct(1, 1); ^ user.cpp:81:11: warning: variable ‘C’ set but not used [-Wunused-but-set-variable] punct C = punct(0, -2); ^