Thanks guys for the various solutions. I set out trying to try a recur solution
So I came up with this. the idea is to go through the collection being
passed, and grab one element, then do drop-while until a different
element is encountered. repeat until there is no more left in the collection.
(defn group [x]
(loop [newlist [] currlist x]
(if (not (empty? x))
(recur (newlist (cons (first x) newlist))
(currlist (drop-while #(= (first currlist) %) currlist))
))))
It seems logical to me, but when I tried it with
(group [1 1 2 2 3 3 ])
I get
CompilerException java.lang.IllegalArgumentException: Key must be integer
what am I missing?
Thanks
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