Compilare: user.c: In function ‘main’: user.c:8:13: warning: unused variable ‘x’ [-Wunused-variable] int n,y,x; ^ user.c:8:11: warning: unused variable ‘y’ [-Wunused-variable] int n,y,x; ^ user.c:8:9: warning: unused variable ‘n’ [-Wunused-variable] int n,y,x; ^ user.c:7:9: warning: unused variable ‘v’ [-Wunused-variable] int v[1000]; ^