[plt-scheme] solution for exercise 11.2.4

Why don't you try to follow the recipe and I promise that someone on  
the list will help you along.

What's the data definition?




On Jun 9, 2008, at 5:00 PM, carlo ambrogio wrote:

>
> yes it's the 11.2.4 exercise of "how to design programs" book
>
>
> I've got problems with a list of list.
>
> the solution could be something like this
>
>
> (define (depth adl)
>   (cond
>     [(symbol? adl) 0)]
>     [(list? (first adl))...
>
>
> and then????
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