Compilare: user.cpp: In function ‘int main()’: user.cpp:10:7: warning: unused variable ‘n’ [-Wunused-variable] { int n,i,x; ^ user.cpp:10:9: warning: unused variable ‘i’ [-Wunused-variable] { int n,i,x; ^ user.cpp:10:11: warning: unused variable ‘x’ [-Wunused-variable] { int n,i,x; ^ user.cpp:11:11: warning: unused variable ‘nr’ [-Wunused-variable] long long nr=0,rez=0; ^ user.cpp:11:16: warning: unused variable ‘rez’ [-Wunused-variable] long long nr=0,rez=0; ^