In one pass?? :^) 

my %count;
my @deduped = grep { $count{$_} == 1 } map { $count{$_} ++; $_ } @data
+;

[download]
What's this about a "crooked mitre"? I'm good at woodwork!

In reply to Re: removing duplicated elements from array, with a difference by BrowserUk
in thread removing duplicated elements from array, with a difference by Anonymous Monk

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