ввести номер машины и программа должна удалить строку

struct Car
{
    string Name;
    string CarNumber;
    string TehNumber;
    string Vidill;
};
 
int main()
{
    int size = 4;
    Car *Cars = new Car[size];
 
    Cars[0].Name = "Varenyk Artem";
    Cars[0].CarNumber = "25072000";
    Cars[0].TehNumber = "1234";
    Cars[0].Vidill = "BS1432";
 
    Cars[1].Name = "Varder Max";
    Cars[1].CarNumber = "23042190";
    Cars[1].TehNumber = "4321";
    Cars[1].Vidill = "VD7722";
 
    Cars[2].Name = "Kolomik Alex";
    Cars[2].CarNumber = "02349827";
    Cars[2].TehNumber = "7632";
    Cars[2].Vidill = "AS3213";
 
    Cars[3].Name = "Martiv Oleg";
    Cars[3].CarNumber = "32670928";
    Cars[3].TehNumber = "3215";
    Cars[3].Vidill = "VF3256";
 
    //----------------------------------------------
 
    ofstream Fout;
    Fout.open("file.txt");
    for (int i = 0; i < size; i++)
        Fout << Cars[i].Name << " " << Cars[i].CarNumber << " " << Cars[i].TehNumber << " " << Cars[i].Vidill << "\n";
    Fout.close();
 
    Cars = new Car[size];
    ifstream Fin("file.txt");
    for (int i = 0; i < size; i++)
    {
        getline(Fin, Cars[i].Name, ' ');
        getline(Fin, Cars[i].CarNumber, ' ');
        getline(Fin, Cars[i].TehNumber, ' ');
        getline(Fin, Cars[i].Vidill, '\n');
        cout << Cars[i].Name << " " << Cars[i].CarNumber << " " << Cars[i].TehNumber << " " << Cars[i].Vidill << "\n";
    }
    Fin.close();