I guess it&#x27;s TreeEuropean from Joshi&#x27;s code: <a href="http:&#x2F;&#x2F;www.markjoshi.com&#x2F;design&#x2F;DesignCPP.zip" rel="nofollow">http:&#x2F;&#x2F;www.markjoshi.com&#x2F;design&#x2F;DesignCPP.zip</a>