[plt-scheme] Binary tree Traversals

From: Matthias Felleisen (matthias at ccs.neu.edu)
Date: Sun Oct 12 09:55:57 EDT 2008

There are plenty of books that explain list and cons and how they  
differ. Have you worked thru the examples?

On Oct 12, 2008, at 1:28 AM, Shrutarshi Basu wrote:

> Veer's solution worked. Thanks. I was under the impression that list
> accepted only two inputs and then combined them. I can see that append
> might give problems in my original code, because it would not always
> get a list as input. Doing (cons (label node) '()) takes care of this,
> I think. I'm still not sure I quite understand list and append though.
> Could someone give me a brief rundown?
> Thanks,
> Basu
> -- 
> The ByteBaker :
> http://www.bytebaker.com
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