Subject: Re: How would the experts handle this...??
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Well, it should be clear that there is more than one way to skin a cat. However, all the submissions I've looked at clearly show some things.
(1) Everyone used two tables, a left and a right, to accumulate the results.
(2) It looks like proper use of Icon's builtin tools (strings, sets, tables, and lists) greatly shortens a program's source code.
It would be interesting to benchmark some of the different approaches to this problem on execution speed as well as on readability. By that I am thinking of how well the source code expresses the problem statement.
Charles Hethcoat
P. S. No cats were harmed in the making of this e-mail.