Compilare: user.cpp: In function ‘int main()’: user.cpp:28:36: warning: ‘f’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<s<<" "<<" "<<k<<" "<<f; ^ user.cpp:28:26: warning: ‘k’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<s<<" "<<" "<<k<<" "<<f; ^