using a binary tree container

[Dominic Jones]

== Quote from bearophile (bearophileHUGS at lycos.com)'s article
> Dominic Jones:
> > I have a list of strings and I want to determine whether or not a particular
> > string in the is in that list.
> What about using:
> size_t[sting] yourStringSet;
> Bye,
> bearophile

Would that not be constructing an associated array? Whilst an associated array
would do the job, there is no value for the "key:value" pair, just a list of keys.
In the C++ STL there are the "set" and "map" containers. I want something like "set".
Dominic