Tree traversal is naturally recursive and easily could be deep enough to hit the default limit. 

package Node;
sub new {
    my ($class, $value) = @_;
    my $self = {
        value => $value,
        left  => undef,
        right => undef,
    };
    bless $self, $class;
    return $self;
}

# Recursive inorder traversal function
sub inorder_traversal {
    my ($node) = @_;
    return unless $node;  # Base case: return if node is undefined

    # Traverse the left subtree
    inorder_traversal($node->{left});

    # Visit the root node
    print $node->{value}, " ";

    # Traverse the right subtree
    inorder_traversal($node->{right});
}

# Example usage
package main;

# Create a sample binary tree
my $root = Node->new(1);
$root->{left} = Node->new(2);
$root->{right} = Node->new(3);
$root->{left}->{left} = Node->new(4);
$root->{left}->{right} = Node->new(5);

say "Inorder Traversal: ", inorder_traversal($root);

[download]

The cake is a lie.
The cake is a lie.
The cake is a lie.

In reply to Re^8: How am i doing? by Fletch
in thread How am i doing? by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.