using System;

public class Program

{

    public static void Main()

    {

        bool play = true;

            Random rnd = new Random();

​

            Console.WriteLine("---------------------------------------------------------");

            Console.WriteLine("         Welcome to Katie's Number Guesser!");

​

            while (play == true)

            {

                double turns = 0;

                double multiplier = 0;

                int guess = 0;

​

                Console.WriteLine("---------------------------------------------------------");

                Console.WriteLine();

                Console.WriteLine("What do you want the range of numbers to be?");

                string sRange = Console.ReadLine();

                int range = int.Parse(sRange) + 1;

                int number = rnd.Next(range);

​

                Console.WriteLine("What difficulty do you want to play on?");

                Console.WriteLine("  Easy  --    Normal  --  Hard  --  Crazy  ");

                string difficulty = Console.ReadLine();

​

                if (difficulty.ToLower() == "easy") { multiplier = Math.Log(range, 2) * 3; }

                else if (difficulty.ToLower() == "normal") { multiplier = Math.Log(range, 2) * 2; }

                else if (difficulty.ToLower() == "hard") { multiplier = Math.Log(range, 2) * 1.5; }

                else if (difficulty.ToLower() == "crazy") { multiplier = Math.Log(range, 2); }

                else

                {

                    Console.WriteLine("The difficulty you chose is not a valid setting. Please choose again");

                    Console.WriteLine();

                    continue;

                }

​

                Console.WriteLine();

                Console.WriteLine("---------------------------------------------------------");

                Console.WriteLine("                 Start guessing!");

                Console.WriteLine("---------------------------------------------------------");

                Console.WriteLine();

​

                while (turns < multiplier)

                {

                    turns++;

                    Console.WriteLine($"Guess {turns}: ");

                    string sGuess = Console.ReadLine();

                    guess = int.Parse(sGuess);

​

                    if (guess == number)

                    {

                        Console.WriteLine($"Congrats! You guessed it in {turns} turns!");

                        break;

                    }

​

                    else if (guess < number)

                    {

                        Console.WriteLine("Too small, go bigger!");

                    }

​

                    else

                    {

                        Console.WriteLine("Too big, guess smaller!");

                    }

                }

​

                if (guess != number)

                {

                    Console.WriteLine();

                    Console.WriteLine("You ran out of turns! Better luck next time!");

                    Console.WriteLine();

                }

​

                Console.WriteLine("---------------------------------------------------------");

                Console.WriteLine("              Would you like to play again?");

                Console.WriteLine("                 Yes        or         No");

                Console.WriteLine("---------------------------------------------------------");

                Console.WriteLine();

                string sPlay = Console.ReadLine();

​

                if (sPlay.ToLower() == "yes") { play = true; }

                else if (sPlay.ToLower() == "no") { play = false; }

                else { Console.WriteLine("Please choose either yes or no"); }

            }

    }

}