using System;

​

public struct SinhVien

{

    public string MSSV;

    public string HoTen;

    public double DiemTB;

}

public struct DSSV

{

    public SinhVien[] DSSinhVien;

}

​

public class TTSV

{

    public static DSSV NhapDanhSach()

    {

        DSSV DanhsachSV;

        Console.WriteLine("Nhập số lượng SV: ");

        int N = int.Parse(Console.ReadLine());

        DanhsachSV.DSSinhVien = new SinhVien[N];

        if (N >= 11)

        {

            for (int i = 0; i < N; i++)

            {

                Console.WriteLine($"Nhap MSSV SV thu {i+1}: ");

                DanhsachSV.DSSinhVien[i].MSSV = Console.ReadLine();

                Console.WriteLine($"Nhap Ho ten SV thu {i+1}: ");

                DanhsachSV.DSSinhVien[i].HoTen = Console.ReadLine();

                Console.WriteLine($"Nhap Diem TB cua SV thu {i+1}: ");

                DanhsachSV.DSSinhVien[i].DiemTB = double.Parse(Console.ReadLine());

            }

        }

        else {Console.WriteLine("yeu cau sinh vien phai tu 11 sv");}

        return DanhsachSV;

    }

}

​

public class Program

{

    public static void Main()

    {

        DSSV DanhsachSV=TTSV.NhapDanhSach();

    }

}