... cout<<"\nChon 2 de sap xep thong tin diem sinh vien "; cout<<"\nChon 3 de in thong tin diem sinh vien "; cout<<"\nChon 4 de them thong tin diem sinh vien ... cout<<"\nChon 5 de xoa thong tin diem sinh vien "; cout<<"\nChon 6 de tim kiem thong tin diem sinh vien "; cout<<"\nChon 7 de thoat chuong trinh. "; ... sv.Insv(a,n); break; case 4: //ThemCuoiDanhSach(a,n,x); cout<<"\nChon vi tri de them diem sinh vien: "; cin>>vitri; sv.ThemVaoBatKy_Soft(a,n,x,vitri); //ThemVaoBatKy(a,n,x,vitri);...