#include <iostream>
#include <string>

using namespace std;

void create_numbers_to_guess(int guesses[], int arrSize);
void provide_assistance(int guess, int answer);
void clear_guessed_numbers(int guessed[], int arrSize);

int main ()
{
	string prompt = "Enter a number: ";
	string help_prompt = "Would you like some assistance?";
	string help_prompt_2 = "You have used up available assistance. Good luck!";

	string win_prompt = "Excellent! You win!";
	string lose_prompt = "Unfortunately, probability has defeated you.";

	string instructions = "Press Ctrl + Z or Ctrl + D to end the game. Enter (number) 0 to get assistance. Enter a number and press Enter to input your guess.";

	int guessedInput = 0;
	int answer = 0;
	const int max_guesses = 1024;
	int guessed_numbers[max_guesses];
	int number_to_guess[max_guesses];	
	int guesses_used = 0;

	const int total_lifelines = 256;
	int lifelines_used = 0;

	cout << instructions << endl;

	create_numbers_to_guess(number_to_guess, max_guesses);

	for (int i = 0; i < max_guesses; ++i)
	{
		answer = number_to_guess[i];
		guesses_used = 0;
		lifelines_used = 0;
		clear_guessed_numbers(guessed_numbers, max_guesses);
		cout << answer << endl;
		while (cin.good())
		{
			if (guesses_used == max_guesses)
			{
				cout << lose_prompt << endl;
				cin.eof(); // set flag for cin to close and make while loop break;
			}
			
			cout << prompt << endl;
			cin >> guessedInput;

			if (guessedInput == answer)
			{
				cout << win_prompt << endl;
				break;
			}

			if (guessedInput == 0 && lifelines_used == total_lifelines) 
			{ 
				cout << help_prompt_2 << endl;
			}
			else if (guessedInput == 0)
			{
				provide_assistance(guessedInput, answer); 
				++lifelines_used;
			}

			guessed_numbers[guesses_used] = guessedInput;
			++guesses_used;

		}
	}
	return 0;
}

void create_numbers_to_guess(int guesses[], int arrSize)
{
	for (int i = 0; i < arrSize; ++i)
	{
		int aGuess = rand() % 5;
		if (aGuess == 0) { aGuess = 1; }
		guesses[i] = aGuess;
	}
}

void provide_assistance(int guess, int answer)
{
	string high_prompt = "Go higher.";
	string low_prompt = "Go lower.";

	if (guess > answer)
	{
		cout << low_prompt << endl; 
	}
	else if (guess < answer)
	{
		cout << high_prompt << endl;
	}
}

void clear_guessed_numbers(int guessed[], int arrSize)
{
	for (int i = 0; i < arrSize; ++i)
	{
		guessed[i] = 0;
	}
}