Answers for "racket list equal elements"

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racket list equal elements

> (check-duplicates '(1 2 3 4))
#f

> (check-duplicates '(1 2 3 2 1))
2

> (check-duplicates '((a 1) (b 2) (a 3)) #:key car)
'(a 3)

Posted by: Guest on January-11-2022

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