On Fri, Sep 5, 2008 at 11:37 AM, Markus Schmidt-Gröttrup
<[EMAIL PROTECTED]> wrote:
> Good suggestion, but in my case the graph contains one source and one
> target vertex, and only the paths reaching from source to target are of 
> interest.

Then you either need to:

[a] Compute all paths from the source and select those which reach the
target, or
[b] Identify your target to your computational mechanism.

I expect that approach [b] would be simpler.

That said, I am wondering about cases like:
   g=: 6 1 2,6 2 3,6 2 4,6 3 5,:6 4 5
where 1 is your desired source node and 5 is your desired end node.

Hypothetically speaking you would have
6 1 2 3
6 1 2 4
as an intermediate result, but your maximum flow through
both paths can not exceed 6.  You would have this same
intermediate result if
    g=: 12 1 2,6 2 3,6 2 4,6 3 5,:6 4 5
but here your maximum flow through both paths can
exceed 6.

In other words, I do not think your data structure is
capable of representing the concepts you have specified.

This implies that you should be using a different
data structure which represents some different
kind of abstraction.

-- 
Raul
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