I got here from Google and this is old but: $h={@arr};
And if you prefer 1 to undef then: 
push @arr,1 if @arr % 2;
$h={@arr};

[download]
Nevermind: I misread the question, which was asking for a tree -- moderator, please delete this answer.

Demize

In reply to Re: Array to hash refs by deMize
in thread Array to hash refs by Anonymous Monk

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