Как передать параметр в функцию?

void Delete(Computer *pcomputer)
{
    unsigned int RemoveComputer;
    int NumberCopy;
    NumberCopy = NumberOfComputers;
    cout << "Enter YEAR of the computer which you want to REMOVE: ";
    cin >> RemoveComputer;
    while (RemoveComputer > 2016 || RemoveComputer < 1900)
    {
        cout << endl << "Entered incorrect value. YEAR cant be more than 2016 and less than 1900." << endl;
        cout << "Enter YEAR of the computer what you want to REMOVE: ";
        cin >> RemoveComputer;
    }
    for (int i = 0; i < NumberOfComputers; i++)
    if (RemoveComputer == pcomputer->YearOfRelease)
    {
        for (int j = i; j < NumberCopy - 1; j++)
            pcomputer[j] = pcomputer[j + 1];
            NumberOfComputers--;
            i = -1;
    }
    if (NumberCopy == NumberOfComputers)
        cout << endl << "The computer with this YEAR doesn't exist." << endl;
    else
        cout << endl << "Computers with " << RemoveComputer << " YEAR are REMOVED. In total REMOVED: " << NumberCopy - NumberOfComputers << " computers." << endl;
}

void Delete(Computer *pcomputer, int NumberOfComputers)

switch (choise)
        {
        case 1:
        {
                  cout << "Enter the number of computers: ";
                  cin >> NumberOfComputers;
                  Computer *st = new Computer[NumberOfComputers];
                  if (NumberOfComputers < 1)
                  {
                      cout << endl << "You have entered incorrect value." << endl << endl;
                      system("PAUSE");
                      return 0;
                  }
                  Computer computer;
                  for (int i = 0; i < NumberOfComputers; i++)
                  {
                      Enter(&computer);
                      AddToFile(computer);
                  }
                  delete[] st;
                  system("PAUSE");
                  break;
        }
        case 2:
        {
                  ShowAll();
                  cout << endl;
                  system("PAUSE");
                  break;
        }
        case 3:
        {
                  Computer computer;
                  Delete(&computer, NumberOfComputers); // ВОТ ТУТ
                  break;
        }

#include<iostream>
#include<iomanip>
#include<fstream>
using namespace std;
struct Computer
{
    char TypeOfComputer[30];
    unsigned int YearOfRelease;
    unsigned int PriceOfComputer;
};
void Enter(Computer *pcomputer);
bool AddToFile(Computer computer);
void Print(Computer computer);
void ShowAll();
void Delete(Computer *pcomputer, int NumberOfComputers);
int main()
{
    int NumberOfComputers;
    int choise = -1;
    while (choise)
    {
        system("CLS");
        cout << endl << " -------------MENU------------- " << endl;
        cout << " 1. Add Data " << endl << " 2. View Data " << endl << " 3. Delete data " << endl << " 0. Exit " << endl;
        cout << " Enter your choise> ";
        cin >> choise;
        switch (choise)
        {
        case 1:
        {
                  cout << "Enter the number of computers: ";
                  cin >> NumberOfComputers;
                  Computer *st = new Computer[NumberOfComputers];
                  if (NumberOfComputers < 1)
                  {
                      cout << endl << "You have entered incorrect value." << endl << endl;
                      system("PAUSE");
                      return 0;
                  }
                  Computer computer;
                  for (int i = 0; i < NumberOfComputers; i++)
                  {
                      Enter(&computer);
                      AddToFile(computer);
                  }
                  delete[] st;
                  system("PAUSE");
                  break;
        }
        case 2:
        {
                  ShowAll();
                  cout << endl;
                  system("PAUSE");
                  break;
        }
        case 3:
        {
                  Computer computer;
                  Delete(&computer, NumberOfComputers);
                  break;
        }
        case 0: cout << " Bye-Bye! " << endl;
        }
    }
system("PAUSE");
    return 0;
}
void Enter(Computer *pcomputer)
{
    cin.ignore();
    cout << "Enter TYPE of the computer: ";
    cin.getline(pcomputer->TypeOfComputer, 29);
    cout << "Enter YEAR of the release: ";
    cin >> pcomputer->YearOfRelease;
    while (pcomputer->YearOfRelease > 2016 || pcomputer->YearOfRelease < 1900)
    {
        cout << endl << "Entered incorrect value. YEAR cant be more than 2016 and less than 1900." << endl;
        cout << "Enter YEAR of the computer release: ";
        cin >> pcomputer->YearOfRelease;
    }
    cout << "Enter PRICE of the computer: ";
    cin >> pcomputer->PriceOfComputer;
}
bool AddToFile(Computer computer)
{
    ofstream file;
    file.open("computers.dat", ios::binary | ios::app);
    if (!file) return false;
    else
    {
        file.write((char*)&computer, sizeof(computer));
        file.close();
        return true;
    }
}
void Print(Computer computer)
{
        cout << setw(26) << computer.TypeOfComputer << "                 " << setw(4) << computer.YearOfRelease << "                 " << setw(4) << computer.PriceOfComputer << "                  \n";
}
void ShowAll()
{
    ifstream file;
    file.open("computers.dat", ios::binary);
    if (!file) cout << " ERROR! " << endl;
    else
    {
        file.seekg(0, ios::end);
        int size = file.tellg();
        size = size / sizeof(Computer);
        file.seekg(0, ios::beg);
        Computer *computers = new Computer[size];
        file.read((char*)computers, sizeof(Computer)*size);
        file.close();
        cout << endl << "+-----------------------------+-----------------------+-----------------------+\n"
            "|       TYPE Of Computer      |    YEAR Of Release    |   PRICE Of Computer   |\n"
            "+-----------------------------+-----------------------+-----------------------+\n";
        for (int i = 0; i < size; i++)
            Print(computers[i]);
    }
}
void Delete(Computer *pcomputer, int NumberOfComputers)
{
    unsigned int RemoveComputer;
    int NumberCopy;
    NumberCopy = NumberOfComputers;
    cout << "Enter YEAR of the computer which you want to REMOVE: ";
    cin >> RemoveComputer;
    while (RemoveComputer > 2016 || RemoveComputer < 1900)
    {
        cout << endl << "Entered incorrect value. YEAR cant be more than 2016 and less than 1900." << endl;
        cout << "Enter YEAR of the computer what you want to REMOVE: ";
        cin >> RemoveComputer;
    }
    for (int i = 0; i < NumberOfComputers; i++)
    if (RemoveComputer == pcomputer->YearOfRelease)
    {
        for (int j = i; j < NumberCopy - 1; j++)
            pcomputer[j] = pcomputer[j + 1];
            NumberOfComputers--;
            i = -1;
    }
    if (NumberCopy == NumberOfComputers)
        cout << endl << "The computer with this YEAR doesn't exist." << endl;
    else
        cout << endl << "Computers with " << RemoveComputer << " YEAR are REMOVED. In total REMOVED: " << NumberCopy - NumberOfComputers << " computers." << endl;
}