Compilare: user.cpp: In function ‘int main()’: user.cpp:71:9: warning: unused variable ‘vf’ [-Wunused-variable] int vf=0,nrpar=0,i,nrmax=0,ok=0; ^ user.cpp:71:14: warning: unused variable ‘nrpar’ [-Wunused-variable] int vf=0,nrpar=0,i,nrmax=0,ok=0; ^ user.cpp:71:22: warning: unused variable ‘i’ [-Wunused-variable] int vf=0,nrpar=0,i,nrmax=0,ok=0; ^ user.cpp:71:32: warning: unused variable ‘ok’ [-Wunused-variable] int vf=0,nrpar=0,i,nrmax=0,ok=0; ^ user.cpp:73:9: warning: ‘nr’ may be used uninitialized in this function [-Wmaybe-uninitialized] int nr; ^