public void AddLetter(char letter, string code)
{
Code = code[0];
if (code.Length > 1)
{
code = code.Substring(1);
if (code[0] == '0')
{
if (Left == null)
{
Left = new Node();
}
Left.AddLetter(letter, code);
}
else if (code[0] == '1')
{
if (Right == null)
{
Right = new Node();
}
Right.AddLetter(letter, code);
}
}
else
{
Letter = letter;
}
}
