You description doesn't tell that the elements are shuffled the way your example code says.

if consecutive elements and destroying the original array are OK, try splice

  DB<32> use Data::Dump qw/dd/

  DB<33> @a=1..12; dd { map { $_ => [splice @a,0,3] } 1..4  }
{ 1 => [1, 2, 3], 2 => [4, 5, 6], 3 => [7, 8, 9], 4 => [10, 11, 12] } 
+...

[download]

NB: the case where @a/4 is not an integer is more complicated.

HTH! :)

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery FootballPerl is like chess, only without the dice

In reply to Re: Round robin processing by LanX
in thread Round robin processing by llarochelle

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