Compilare: user.cpp: In function ‘int main()’: user.cpp:34:9: warning: unused variable ‘t’ [-Wunused-variable] int t,a,b,c,d,e,x,y; ^ user.cpp:34:15: warning: unused variable ‘c’ [-Wunused-variable] int t,a,b,c,d,e,x,y; ^ user.cpp:34:17: warning: unused variable ‘d’ [-Wunused-variable] int t,a,b,c,d,e,x,y; ^ user.cpp:34:19: warning: unused variable ‘e’ [-Wunused-variable] int t,a,b,c,d,e,x,y; ^