Question: (Common-Lisp) a) Compare these two functions (sum-list1 and sum-list2), what these function do? b) Which one is more efficient or more readable? and why? Function

(Common-Lisp)

a) Compare these two functions (sum-list1 and sum-list2), what these function do?

b) Which one is more efficient or more readable? and why?

Function 1: (defun sum-list1 (L)

(if (null L) 0

(+ (first L)

(sum-list1 (rest L)))))

Function 2: (defun sum-list2 (L)

(apply #'+ L))

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