at the same time print $#arr_ref is printing -1.

Of course. You never put anything in @arr_ref. Start by using use strict; use warnings;. 

@array -> @$ref or @{$ref}

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so 
$#array -> $#$ref or $#{$ref}

[download]

In reply to Re: Print last element using perl reference by ikegami
in thread Print last element using perl reference by gobisankar

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