Is efficient?

#include <iostream>
#include <string>

using namespace std;

void UserpassFunc()
{
	string username;
	int password;
	bool success = 0;
	while (success == 0)
	{
		cout << "Please enter your username: ";
		cin >> username;
		cout << "Please enter your password: ";
		cin >> password;

		if (username == "delcari" && password == 123 || username == "Azex" && password == 456)
		{
			cout << "Access Granted";
			success = 1;
		}
		else
		{
			cout << "Access Denied\n";
			success = 0;
		}
		}
	}

int main()
{
	UserpassFunc();
		cin.ignore();
		cin.get();
}