Am Sonntag, 25. Juni 2017 19:40:08 UTC+2 schrieb philipp.t...@gmail.com:
> Hello its me again,
>
> I have the task to make a funcition who checks if two lists contain a word.
>
> I made a function which does that with one lst but I dont find a way to do it
> with two lists. There must be some ea
On Wed, Jun 28, 2017 at 3:33 AM, wrote:
> Thanks guys the tips made me have the idea that I can just write the check
> for the second list instead of '(true).
>
> Here is my solution:
>
> #lang racket
>
>
> (define (test1 word book book2)
>
> (cond ((null? book) '(false))
>
> ((
Thanks guys the tips made me have the idea that I can just write the check for
the second list instead of '(true).
Here is my solution:
#lang racket
(define (test1 word book book2)
(cond ((null? book) '(false))
((equal? word (first book)) (cond ((null? book2) '(false))
To expand on Vityou's hint a bit:
You have already written a function that lets you answer the question "Is
it true that this word appears in this list?" You now need to answer the
following: "Is it true that this word appears in this list? And is it true
that this word appears in this other lis
Hello I tried another version but it doesnt work. Can anyone help me? Using the
"and" function didnt help me.
#lang racket
(define (checker wort liste1 liste2)
(cond ((and (equal? (first liste1) wort)
(equal? (first liste2) wort))
'(true))
((or (null? liste1)
Try taking a look at the `and` function:
https://docs.racket-lang.org/reference/if.html#%28form._%28%28lib._racket%2Fprivate%2Fletstx-scheme..rkt%29._and%29%29
On Sunday, June 25, 2017 at 11:40:08 AM UTC-6, philipp.t...@gmail.com wrote:
> Hello its me again,
>
> I have the task to make a funciti
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