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tab-delimited file to graph


Hello,

I have a directed graph "mygraph" in a tab delimited file that looks
like this:
v1    v2
v2    v3
v3    v1
v1    v4
I would like to import this graph into mathematica, so that I can take
advantage of the -DiscreteMath`Combinatorica`- functions. So far, I was
only able to import it with Import["mygraph","TSV"] into a list of
two-item lists. Now, I am stuck there. Can somebody help me to convert
this list of two-item lists into a matrix or adjacency list of a
directed graph?

Thank you in advance,

Aitor


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