> On Sep 10, 2017, at 9:10 AM, Fernando Basso
> wrote:
>
> Thanks for the help. I found it amazingly well worded, giving me proper
> insights to reach a solution without giving the solution proper, which I
> happen to believe to be one of the most effective ways to help one learn
> anything.
Thanks for the help. I found it amazingly well worded, giving me proper
insights to reach a solution without giving the solution proper, which I
happen to believe to be one of the most effective ways to help one learn
anything. Much appreciated. And indeed, I reworked the code using the four
st
You may wish to read Chapter 16 in HtDP/2e:
http://www.ccs.neu.edu/home/matthias/HtDP2e/part_three.html#%28part._ch~3a3use%29
It teaches how to re-use an existing abstraction, which is
what you are having trouble with.
To help you along, I have changed your code in a few places:
(1) I e
I am doing an exercise from EDX course based on H2DP book and am having trouble
implementing a `find` function using the abstract function fold-elt. The
function should find the element and return its data.
-
#lang htdp/isl
(define-struct elt (name data subs))
;; Element is (make-elt String
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