Compilare: user.cpp: In function ‘int main()’: user.cpp:9:22: warning: unused variable ‘x’ [-Wunused-variable] int i,front,back,x,sum=0,j,pi,pf=0,aux,q; ^ user.cpp:9:24: warning: unused variable ‘sum’ [-Wunused-variable] int i,front,back,x,sum=0,j,pi,pf=0,aux,q; ^ user.cpp:9:30: warning: unused variable ‘j’ [-Wunused-variable] int i,front,back,x,sum=0,j,pi,pf=0,aux,q; ^ user.cpp:9:40: warning: variable ‘aux’ set but not used [-Wunused-but-set-variable] int i,front,back,x,sum=0,j,pi,pf=0,aux,q; ^