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This is a code written in Dr Racket. Why it uses cons and what cons does? ; contract: insert: l ( list of numbers )
This is a code written in Dr Racket. Why it uses cons and what cons does?
; contract: insert: llist of numbers valnumber list of numbers
; test
; function
define insert val cond empty llist val
val first lcons val l ; insert it to the list
else cons first linsert rest l val; do not insert the value, but
add first of not to remove element from the list
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