Bác nào chỉ em rút gọn cái trương trình này với

nghe nói dùng hàm có thể làm gọn cái đoạn code này đúng ko các bác

// #include <iostream>
using namespace std;
void pass();
void main()
{
	void pass();
	{
		int pass;
		int passcor;
		cout << "Please enter password to unlock the program" << endl<<"Password=";
		cin >> pass;
		passcor = 123;
		if (pass == passcor)
		{
			cout << "Your code is: " << "Let me hit!" << endl;
			system("pause");
		}
		else
		{
			cout << "Wrong Password (2 next)" <<endl;
			cout << "Please enter password to unlock the program" << endl << "Password=";
			cin >> pass;
			passcor = 123;
			if (pass == passcor)
			{
				cout << "Your code is: " << "Let me hit!" << endl;
				system("pause");
			}
			else
			{
				cout << "Wrong Password (1 next)" << endl;
				cout << "Please enter password to unlock the program" << endl << "Password=";
				cin >> pass;
				passcor = 123;
				if (pass == passcor)
				{
					cout << "Your code is: " << "Let me hit!" << endl;
					system("pause");
				}
				else
				{
					cout << "Wrong Password (0 next)" << endl;
					cout << "Please enter password to unlock the program" << endl << "Password=";
					cin >> pass;
					passcor = 123;
					if (pass == passcor)
					{
						cout << "Your code is: " << "Let me hit!" << endl;
						system("pause");
					}
					else
					{
						cout << "No more mercy with you! End program" << endl;
						system("pause");
					}
				}
			}
		}
	}
}