Write a recursive function flatten that takes a list as an argument and returns the flat version of that list. For example, (flatten '(a (b c) d)) (flatten '(((a)) (b (c)) d) -> (a b c d) -> (a bc d)

Computer Networking: A Top-Down Approach (7th Edition)
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ISBN:9780133594140
Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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1. Recursion & List processing Write a recursive function flatten that takes a list as an argument and returns the flat version of that list. For example, (flatten '(a (b c) d)) ​​-> (a b c d) (flatten '(((a)) (b (c)) d)​-> (a b c d)
Write a recursive function flatten that takes a list as an
argument and returns the flat version of that list. For example,
(flatten '(a (b c) d))
(flatten '(((a)) (b (c)) d)
-> (a b c d)
-> (a b c d)
Transcribed Image Text:Write a recursive function flatten that takes a list as an argument and returns the flat version of that list. For example, (flatten '(a (b c) d)) (flatten '(((a)) (b (c)) d) -> (a b c d) -> (a b c d)
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