using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Diagnostics;

namespace GuessWord
{
class Program
{
static int wrongGuess, lettersLeft;

static void Main(string[] args)
{
string wordToGuess = GetWordToGuess();

char[] maskedWord = GetHiddenLetters(wordToGuess, ‘-‘);

lettersLeft = wordToGuess.Length;
char userGuess;

wrongGuess = 3;

while (wrongGuess > 0 && lettersLeft > 0)
{
DisplayCharacters(maskedWord);

Console.WriteLine("Enter a letter?");
userGuess = char.Parse(Console.ReadLine());

maskedWord = CheckGuess(userGuess, wordToGuess, maskedWord);
}

Console.WriteLine("Well done! Thanks for playing.");
Console.ReadLine();
}

static string GetWordToGuess()
{
Random number = new Random();
int wordNumber = number.Next(0, 9);

string[] words = { "picture", "chinese", "school", "question", "include", "simple", "difficult", "understand", "necessary", "support" };

string selectWord = words[wordNumber];
return selectWord;
}

static char[] GetHiddenLetters(string word, char mask)
{
char[] hidden = new char[word.Length];

for (int i = 0; i < word.Length; i++)
{
hidden[i] = mask;
}

return hidden;
}

static void DisplayCharacters(char[] characters)
{
foreach (char letter in characters)
{
Console.Write(letter);
}
Console.WriteLine();
}

static char[] CheckGuess(char letterToCheck, string word, char[] characters)
{
if (word.Contains(letterToCheck))
{
for (int i = 0; i < word.Length; i++)
{
if (word[i] == letterToCheck)
{
characters[i] = word[i];
lettersLeft--;
}
}
}
else
{
wrongGuess--;
}

return characters;
}
}
}

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