#include <iostream>
using namespace std;

struct Diem {
	double Toan;
	double Ly;
	double Hoa;

	double DiemTrungBinh;
};



int main()
{
	int n;
	cout << "\nNhap so luong sinh vien: ";
	cin >> n;

	Diem* a = new Diem[n];

	for (int i = 0; i < n; i++)
	{
		cout << "\n\t===Nhap diem hoc sinh thu " << i + 1 << "===\n\n";
		do
		{
			cout << "\nNhap Diem Toan: ";
			cin >> a[i].Toan;
			if (a[i].Toan < 0 || a[i].Toan > 10)
			{
				cout << "\nDiem ban nhap khong hop le! Xin Kiem tra lai!";
			}
		} while (a[i].Toan < 0 || a[i].Toan > 10);
		
		do
		{
			cout << "\nNhap Diem Ly: ";
			cin >> a[i].Ly;
			if (a[i].Ly < 0 || a[i].Ly > 10)
			{
				cout << "\nDiem ban nhap khong hop le! Xin Kiem tra lai!";
			}
		} while (a[i].Ly < 0 || a[i].Ly > 10);


		do
		{
			cout << "\nNhap Diem Hoa: ";
			cin >> a[i].Hoa;
			if (a[i].Hoa < 0 || a[i].Hoa > 10)
			{
				cout << "\nDiem ban nhap khong hop le! Xin Kiem tra lai!";
			}
		} while (a[i].Hoa < 0 || a[i].Hoa > 10);

	}
	
	for (int i = 0; i < n; i++)
	{
		a[i].DiemTrungBinh = (a[i].Toan * 3 + a[i].Ly * 2 + a[i].Hoa * 2) / 7;
	}
	
	for (int i = 0; i < n - 1; i++)
	{
		for (int j = i + 1; j < n; j++)
		{
			if (a[i].DiemTrungBinh < a[j].DiemTrungBinh)
			{
				swap(a[i], a[j]);
			}
		}
	}


	cout << "\nSTT\tDiem Toan\tDiemLy\tDiemHoa\tDTB\tXH\n\n";
	for (int i = 0; i < n; i++)
	{
		string XepHang;
		if (a[i].DiemTrungBinh >= 0 && a[i].DiemTrungBinh <= 4)
			XepHang = "Yeu";
		else if (a[i].DiemTrungBinh <= 5.5)
			XepHang = "TB";
		else if (a[i].DiemTrungBinh <= 7)
			XepHang = "Kha";
		else if (a[i].DiemTrungBinh <= 8.5)
			XepHang = "Gioi";
		else if (a[i].DiemTrungBinh <= 10)
			XepHang = "Xuat Sac";

		cout << "\n" << i + 1 << "\t\t" << a[i].Toan << "\t  " << a[i].Ly << "\t   " << a[i].Hoa << "\t " << a[i].DiemTrungBinh << "\t" << XepHang;

	}

	delete[] a;

	return 0;
}