DonThuc.h

#include<iostream>
using namespace std;
class DonThuc
{
public:
    void Nhap()
    {
        cout << "\nMoi nhap He so: ";
        cin >> HeSo;
        cout << "\nMoi nhap So mu: ";
        cin >> SoMu;
    }
    void Xuat()
    {
        cout << HeSo << "x^" << SoMu;
    }
    DonThuc Tong(DonThuc a)
    {
        DonThuc Tong;
        do
        {
            Tong.HeSo = HeSo + a.HeSo;
            Tong.SoMu = SoMu;
            if (SoMu != a.SoMu)
                cout << "\nSo mu cua hai don thuc phai bang nhau: ";
        } while (SoMu != a.SoMu);
        return Tong;
    }

private:
    int SoMu;
    int HeSo;

};

//DonThuc::DonThuc()
//{
//  HeSo = 0;
//  SoMu = 1;
//}

DonThuc::DonThuc(int a, int b)
{
    HeSo = a;
    SoMu = b;
}

DonThuc::~DonThuc()
{
}