You might have him check out Code Kata; I got pointed at that from a Ruby blog the other day and it's got some interesting programming challenges (not necessarily explicitly coding for some, but . . .).

The ACM also runs annual programming contests; if you follow the link off the main page you can find PDFs of this year's and last year's problems that might work as well.

In reply to Re: Learning Exercises by Fletch
in thread Learning Exercises by ropey

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