How to represent a Towers of Hanoi problem using a graph?

Posted by eSKay on Stack Overflow See other posts from Stack Overflow or by eSKay
Published on 2010-04-06T08:32:40Z Indexed on 2010/04/06 8:43 UTC
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algorithm

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graphs

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towers-of-hanoi

I am not able to figure out how the graphs shown here are constructed?

For example, what does this graph represent?

"Nodes are distribution of discs", but I will only have one disc of size a. So, what does node aa represent?

I know the answer would be simple, but I cannot figure it out at the moment.

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