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).

In reply to Re^3: Finding connected components in a graph. by SuicideJunkie
in thread Finding connected components in a graph. by zing

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