Compilare: user.cpp: In function ‘int main()’: user.cpp:22:11: warning: unused variable ‘n’ [-Wunused-variable] int p,n,fives,pp,ok=1; ^ user.cpp:22:13: warning: unused variable ‘fives’ [-Wunused-variable] int p,n,fives,pp,ok=1; ^ user.cpp:22:19: warning: unused variable ‘pp’ [-Wunused-variable] int p,n,fives,pp,ok=1; ^ user.cpp:22:22: warning: unused variable ‘ok’ [-Wunused-variable] int p,n,fives,pp,ok=1; ^ user.cpp:43:32: warning: ‘mid’ may be used uninitialized in this function [-Wmaybe-uninitialized] while(five(mid)==five(mid-1)) ^