private static VariableLetterGroup RankLetters(VariableLetterGroup letters)
{
VariableLetterGroup copy = new VariableLetterGroup(letters);
VariableLetterGroup res = new VariableLetterGroup();
while (copy.Length() > 0)
{
res.Add(new Letter(copy[0].GetLetter()));
int i = 1;
int rank = 1;
while (i < copy.Length())
{
if (copy[i] == copy[0])
{
res.Add(new Letter(copy[i].GetLetter(), rank));
copy.RemoveAt(i);
rank++;
}
else
{
i++;
}
}
copy.RemoveAt(0);
}
return(res);
}
public static VariableLetterGroup operator +(VariableLetterGroup a, VariableLetterGroup b)
{
VariableLetterGroup c = new VariableLetterGroup(a);
c.Add(b);
return(c);
}