From: Dave Thomas <dave@...>
Date: 2008-11-10T00:19:40+09:00
Subject: Need help finding a pithy corouting example

I'm looking for a concise but interesting example of corotuines to  
illustrate symmetrical fibers for the 1.9 edition of the PickAxe.

Way back in the dim past, I remember a logic puzzle to do with laying  
down a path of colored tiles such that there were no repeating  
subsequences. I remember coding a solution using coroutines in Simula.  
But I can't now find a formulation of the problem. Does anyone know  
it? Or can anyone suggest an alternative illustration of coroutines  
that will fit in about 20-30 lines.?

Thanks


Dave