Compilare: user.cpp: In function ‘int main()’: user.cpp:22:13: warning: unused variable ‘nr’ [-Wunused-variable] int i,n,nr,aux,s,j,k,m; ^ user.cpp:22:16: warning: unused variable ‘aux’ [-Wunused-variable] int i,n,nr,aux,s,j,k,m; ^ user.cpp:22:20: warning: unused variable ‘s’ [-Wunused-variable] int i,n,nr,aux,s,j,k,m; ^ user.cpp:22:22: warning: unused variable ‘j’ [-Wunused-variable] int i,n,nr,aux,s,j,k,m; ^ user.cpp:22:24: warning: variable ‘k’ set but not used [-Wunused-but-set-variable] int i,n,nr,aux,s,j,k,m; ^