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Exercise 2.6
Creation of association lists *

Program a function pair-up that constructs an association list from a list of keys and a list of values. As an example

  (pair-up '(a b c) (list 1 2 3))

should return

  ((a . 1) (b . 2) (c . 3))

Think of a reasonable solution in case the length of the key list is different from the length of the value list.

Solution