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#include<iostream>
#include<fstream>
#include<string.h>
using namespace std;

string username;
string password;


struct user
{
	string username;
	string password;
};

void registerUser(user);
void login(user);

int main()
{
	user USER;
	int choice;

	cout << "Enter 1 to register or 2 to login: " << endl;
	cout << "Your choice: ";
	cin >> choice;

	if(choice == 1)
		registerUser(USER);
	else if(choice == 2)
		login(USER);
}

void registerUser(user USER)
{
	ofstream outFile;

	outFile.open("Users Data.txt");

	cout << "Enter username: ";
	cin >> USER.username;
	cout << "Enter password: ";
	cin >> USER.password;

	outFile << "Username: " << USER.username << endl;
	outFile << "Password: " << USER.password << endl;

	outFile.close();
}

void login(user USER)
{
	ifstream inFile;
	inFile.open("Users Data.txt");

	cout << "Enter your username: " ;
	cin>>username;
	cout << "Enter your password: " ;
	cin>>password;

	inFile>>USER.username>>USER.password;

	{
		if(username==USER.username)
		{
	 		if(password == USER.password)
			{
					cout << "Login successful!" << endl;
			}
		}
		else
			{

		cout << "Login error! Please try again. " << endl;

			}
	}


	inFile.close();

}