in reply to Is there an easy way to assign guaranteed unique values to a simple array without looping through whole array?

Another way to look at this is that you want a shuffled version of some list. Take (1..7) for example. With Algorithm::Numerical::Shuffle you can do that easily: 
@array = shuffle(1..7);

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The idea of shuffling an array has been discussed before (and other places, too).

HTH, --traveler

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