OOP 2rd Term test

1433401511.cpp

#include <iostream>
#include <string>
using namespace std;
 
class Ve
{
 
protected:
        string MaVe, HoTen;
        int NamSinh, SoTroChoi;
public:
        Ve(string MaVe = "", string HoTen = "", int NamSinh = 0, int SoTroChoi = 0)
        {
                this->HoTen = HoTen;
                this->MaVe = MaVe;
                this->NamSinh = NamSinh;
                this->SoTroChoi = SoTroChoi;
        }
        virtual void Nhap()
        {
                fflush(stdin);
                cout << "Nhap ma ve: ";
                getline(cin, this->MaVe);
                cout << "Nhap ten: ";
                getline(cin, this->HoTen);
                cout << "Nhap nam sinh: ";
                cin >> this->NamSinh;
        }
        virtual int TienVe() = 0;
        virtual int LayLoaiVe() = 0;
        virtual ~Ve(){}
};
 
class VeTronGoi : public Ve
{
public:
        VeTronGoi(string MaVe = "", string HoTen = "", int NamSinh = 0) : Ve(MaVe, HoTen, NamSinh, 0)
        {
        }
        ~VeTronGoi(){}
 
        void Nhap()
        {
                Ve::Nhap();
        }
        int TienVe()
        {
                return 200000;
        }
        int LayLoaiVe()
        {
                return 0;
        }
};
 
class VeTungPhan : public Ve
{
public:
        VeTungPhan(string MaVe = "", string HoTen = "", int NamSinh = 0, int SoTroChoi = 0) : Ve(MaVe, HoTen, NamSinh, SoTroChoi)
        {
        }
        ~VeTungPhan(){}
 
        void Nhap()
        {
                Ve::Nhap();
                cout << "Nhap so tro choi: ";
                cin >> this->SoTroChoi;
        }
       
        int TienVe()
        {
                return (70000 + 20000 * this->SoTroChoi);
        }
        int LayLoaiVe()
        {
                return 1;
        }
};
 
class DSVe
{
        Ve **dsVe;
        int SoVe;
        int TongTien;
public:
        DSVe()
        {
                do
                {
                        cout << "So ve can nhap: ";
                        cin >> this->SoVe;
                } while (this->SoVe < 0);
 
                TongTien = 0;
                dsVe = new Ve*[this->SoVe];
        }
        ~DSVe()
        {
                delete[] dsVe;
        }
        int NhapLoaiVe()
        {
                int a;
                do
                {
                        cout << "1. Ve tron goi\n2. Ve tung phan\n\tNhap so tuong ung: ";
                        cin >> a;
                        if (a == 1 || a == 2) return (a - 1);
                } while (1);
        }
        void Nhap()
        {
                for (int i = 0; i < SoVe; i++)
                {
                        cout << "Ve thu " << i + 1 << ": \n";
                        switch (NhapLoaiVe())
                        {
                        case 0:
                                dsVe[i] = new VeTronGoi;
                                break;
                        case 1:
                                dsVe[i] = new VeTungPhan;
                                break;
                        }
                        dsVe[i]->Nhap();
                }
        }
        int TinhTongTien()
        {
                for (int i = 0; i < this->SoVe; i++)
                        TongTien += dsVe[i]->TienVe();
                return this->TongTien;
        }
        int LayTongTien()
        {
                return this->TongTien;
        }
        int SoVeTungPhan()
        {
                int s = 0;
                for (int i = 0; i < this->SoVe; i++)
                {
                        if (dsVe[i]->LayLoaiVe() == 1)
                                s++;
                }
                return s;
        }
};
 
void main()
{
        DSVe DS;
        DS.Nhap();
        cout << DS.TinhTongTien() << endl;
        cout << DS.SoVeTungPhan();
}