#include #include #include #include class nguoi{ char hoten[30]; unsigned int tuoi; public: nguoi(); void nhap(); void xuat(); friend int nhapn(nguoi *&); friend void xuatn_max(nguoi *,int n); }; nguoi::nguoi(){ strcpy(hoten,""); tuoi=0; } void nguoi::nhap(){ cout<<"nhap hoten"; gets(hoten); cout<<"nhap tuoi"; cin>>tuoi; } //muon cho dep thi dung ham iosflag void nguoi::xuat(){ cout<<"ho ten la: "<>n; cin.ignore(); d=new nguoi[n]; for(int i=0;i