[plt-scheme] HtDP Exercise 12.4.2 - To the authors of HtDP

From: Shriram Krishnamurthi (sk at cs.brown.edu)
Date: Wed Dec 2 21:11:00 EST 2009

Thank you for posting this.  This way (and this was probably your
intention), the NEXT person who googles for a solution will find YOUR
post and will realize there isn't a royal road to knowledge, but there
is a rocky one available to someone willing to trek it.

Congrats on doing it!


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