The easiest approach would be to review your course material for hints about how to do so.

The second easiest approach is to do this manually for the given example and then encode each step that you do manually into a program.

Maybe the following observations help you analyze the steps to find the length of a linked list:

  1. Each list is finite, that is, it has finitely many nodes and no node is referenced more than once by any next entry.
  2. The length of the empty list is zero.
  3. The length of a list that is not empty is one larger than the length of the list in the next entry.

In reply to Re: Nodes count in Linked List by Corion
in thread Perl linked list by Perl_is_Perl

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