private void PrefixedWordsAux(string word, Node node, List<string> prefixedWords)
{
if (node.IsWordTerminator)
prefixedWords.Add(word);
foreach (var child in node.AssignedChildren)
{
PrefixedWordsAux(word + child.Value, child.Key, prefixedWords);
}
}
public Node GetOrCreate(char c)
{
Node child = this[c];
if (child == null)
child = this[c] = new Node();
return child;
}