A DAG naturally has sources - vertices with only out-going edges - and
sinks - vertices with only incoming edges.  All edges with a maximal
number of edges run from a source to a sink (why?).  You can find them
most easily with a breadth-first search starting simultanously from
all the sources.

On Sep 6, 9:34 am, Maria <lydwin.ma...@gmail.com> wrote:
> In a DAG, print the maximal paths....
> Can any one help me out with this question...?
> I don seem to understand the question itself...

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