Compilare: user.cpp: In function ‘int nrdiv(int)’: user.cpp:8:15: warning: unused variable ‘k’ [-Wunused-variable] int cnt=1,k,ok=1,p=2,ex,cnt1=1; ^ user.cpp:8:17: warning: unused variable ‘ok’ [-Wunused-variable] int cnt=1,k,ok=1,p=2,ex,cnt1=1; ^ user.cpp: In function ‘int main()’: user.cpp:46:10: warning: ‘nr’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<nr<<" "<<maxd<<" "<<cntnr; ^