Compilare: user.cpp: In function ‘int main()’: user.cpp:14:10: warning: unused variable ‘i’ [-Wunused-variable] long i,j,aux,k,a,x; ^ user.cpp:14:12: warning: unused variable ‘j’ [-Wunused-variable] long i,j,aux,k,a,x; ^ user.cpp:14:14: warning: unused variable ‘aux’ [-Wunused-variable] long i,j,aux,k,a,x; ^ user.cpp:14:18: warning: unused variable ‘k’ [-Wunused-variable] long i,j,aux,k,a,x; ^ user.cpp:14:20: warning: unused variable ‘a’ [-Wunused-variable] long i,j,aux,k,a,x; ^ user.cpp:14:22: warning: unused variable ‘x’ [-Wunused-variable] long i,j,aux,k,a,x; ^