Multiple Username Verification Each With Their Own Password

#include <iostream>
#include <string>
using namespace std;

int main() {
    string username, password;

    cout << "Enter your username: ";
    getline(cin, username, '\n');

    cout << "Enter your password: ";
    getline(cin, password, '\n');

    if (username == "cat" && password == "fish" || username == "dog" && password == "bone") {
        cout << "Access allowed" << endl;
    }
    else {
        cout << "Denied access, One or both your username and password are wrong!" << endl;
        return 0;
    }
    cout << "Hello " << username << "!\n";
}