On Fri, Dec 30, 2011 at 1:37 AM, Ville M. Vainio <[email protected]> wrote:

> Given the list of edges (a,b) :
>
> If you want all children of node N, list edges where N is the 'a'
> node, and store the 'b' node from every edge. To find parent(s) of N,
> list edges where N is the 'b' node.

In C++ & SQL:

https://gist.github.com/1536719

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