Thanks so much for your reply, Monks.

To Ray Johnson, my code did'nt work because, I
forgot to change @V to @vertices and @E to @edges.

My further question to 'blokhead' is:
how can I store the output e.g: 
5 6 9
2 3 4
1 3 4
1 2 4
1 2 3

[download]
into an array, with this snippet you've given 
$regex .= '(?{ print join(" ", map $$_, 1..$k), "\\n" })(?!)';
$string =~ /$regex/x;

[download]
because when I used: 
push @string, $string;

[download]
doesn't seems to work.

Regards,
Edward WIJAYA

In reply to Re^2: Finding number of 'k'-clique in a graph by monkfan
in thread Finding number of 'k'-clique in a graph by monkfan

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