Hi LanX, I tried to make the code a little flexible 
my @z;
for (my $r = 0; $r <= 2; $r++)
{$z[$r]=$subgraphs[0][$r];}

for my $QT (@z ){
    print Dumper $QT;
    for my $triplet ( @S ){
        my %Pie;
        undef @Pie{@$QT};
        delete @Pie{ @$triplet };
        print "@$triplet\n" if keys(%Pie) <= ( @$QT - @$triplet ) ;
    }
}

[download]
But Im getting this error::

Can't use string ("c") as an ARRAY ref while "strict refs" in use at combo.pl line 89

Line 89 being " undef @Pie{@$QT};"

In reply to Re^2: Finding subgraphs induced by a set of given vertices. by zing
in thread Finding subgraphs induced by a set of given vertices. by zing

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