import java.util.*;

public class Guess {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		Scanner scan = new Scanner(System.in);
		Random generator = new Random();

		int guess, randNum;
		int count = 0;
		String another;
		int games = 0;
		int totalcount = 0;
		double average;
		do
		{
			randNum = generator.nextInt(100) + 1;
			count = 0;
			do
			{
				System.out.print("Enter a guess (between 1 and 100. -1 to quit): ");
				guess = scan.nextInt();
				if (guess != -1)
					count++;
				if ((guess < randNum) && (guess != -1))
					System.out.println("Too low!");
				else if (guess > randNum)
					System.out.println("Too high!");
			} while ((guess != randNum) && (guess != -1));
			
			
			if (guess != -1)
				System.out.println("Good job!  You guessed it in " + count + " tries");
			else
				System.out.println("You quit after " + count + " guesses.");
			
			System.out.print("Do you want to play again (yes/no)?");
			another = scan.next();
			games++;
			totalcount += count;
		} while (another.equalsIgnoreCase("yes")); 

		average = (double)totalcount / games;
		System.out.println("Your average was: " + average);
		
		System.out.println("Thanks for playing!");
	}

}