Compilare: user.cpp: In function ‘void lee(int, int)’: user.cpp:19:9: warning: unused variable ‘max’ [-Wunused-variable] int max=0; ^ user.cpp: In function ‘int main()’: user.cpp:84:15: warning: variable ‘x’ set but not used [-Wunused-but-set-variable] int max=0,x,y; ^ user.cpp:84:17: warning: variable ‘y’ set but not used [-Wunused-but-set-variable] int max=0,x,y; ^