Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change

Re^2: Finding connected components in a graph.

by zing (Beadle)
on Oct 02, 2012 at 18:25 UTC ( #996890=note: print w/ replies, xml ) Need Help??

in reply to Re: Finding connected components in a graph.
in thread Finding connected components in a graph.

Hi there, As per your suggestion I added these two lines, but as you can see in the output section the results are totally invalid.
print "First connected component == $subgraphs[1]\n"; print "Number of connected components== $#subgraphs\n";
5 ----connected components--------------- - - c - b - a - - e - d First connected component == ARRAY(0x9a8e308) Number of connected components== 1

Replies are listed 'Best First'.
Re^3: Finding connected components in a graph.
by SuicideJunkie (Vicar) on Oct 02, 2012 at 18:32 UTC

    Yes. The subgraph is an array reference. Dig in! foreach my element (@{ $subgraphs[0] }) {...}

    As expected, the last index in your two element array is 1. The other index is 0. As I wrote, you want to print 0+@subgraphs, or more explicitly, scalar(@subgraphs).

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://996890]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others about the Monastery: (4)
As of 2016-07-02 04:01 GMT
Find Nodes?
    Voting Booth?
    What is your favorite alternate name for a (specific) keyboard key?

    Results (18 votes). Check out past polls.