Compilare: user.cpp: In function ‘int main()’: user.cpp:12:10: warning: unused variable ‘sep3’ [-Wunused-variable] char sep3[]="[]", sep4[]=","; ^ user.cpp:13:9: warning: unused variable ‘i’ [-Wunused-variable] int i,n=0,c=0,x,ss=0,nr; ^ user.cpp:13:11: warning: unused variable ‘n’ [-Wunused-variable] int i,n=0,c=0,x,ss=0,nr; ^ user.cpp:13:19: warning: unused variable ‘x’ [-Wunused-variable] int i,n=0,c=0,x,ss=0,nr; ^