Compilare: user.cpp: In function ‘int main()’: user.cpp:10:14: warning: unused variable ‘nrpar’ [-Wunused-variable] int vf=0,nrpar=0,i,nmax=0,ok=0,nr=0,j; ^ user.cpp:10:31: warning: unused variable ‘ok’ [-Wunused-variable] int vf=0,nrpar=0,i,nmax=0,ok=0,nr=0,j; ^ user.cpp:11:9: warning: unused variable ‘nrant’ [-Wunused-variable] int nrant=0; ^