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Each queue element should have two elements which can individually be dequeued Like a queue within a queue
If "each queue element contains 2 elements that can be individually dequeued"; what is the difference between a your 2D-queue containing one, two-element element; and a normal queue containing two, single-element elements pushed by the same producer at the same time?
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
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In reply to Re^3: How to create a two dimensional queue in Perl