How to randomly generate unique dynamic array without using unique/foreach/queue?

SystemVerilog
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I want to generate random dynamic array with unique value without using unique/foreach/queue.

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In reply to Sagar Shah:
Why?

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I assume you already know Chris Spear’s technique of using post-randomize with a randc variable to fill array with unique numbers…

Alternative way of doing is to actually implement an LFSR with a known polynomial

in fact, simulators maybe internally using a variant of LFSR to generate rand…

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In reply to Sagar Shah:

Can you please specify why that requirement came up ??