how to shuffle an array elements with key

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how to shuffle the elements in an array using a key in such a way that no two adjacent elements should appear adjacently in shuffled array.From the shuffled array i need original array using only the same key.

Posted 11-Feb-13 17:29pm

manuthebos

Updated 11-Feb-13 18:35pm

v3

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Sergey Alexandrovich Kryukov 11-Feb-13 23:52pm

What do you mean "with key"? Transposition is one of the simplest operations, just do it by definition.
—SA

Joezer BH 12-Feb-13 1:06am

Actually I think it's a nice question - it's not a simple transposition, making sure that two adjacent elements are now not adjacent.

Sergey Alexandrovich Kryukov 12-Feb-13 1:15am

Sorry, I don't understand what are your talking about, perhaps I don't know this term. A definition?
—SA

Joezer BH 12-Feb-13 1:30am

*If I understand manuthebos correctly*

Given an array: { 1, 2, 3, 4, 5}
you need to shuffle the array so that:
- 1 is not near 2
- 2 is not near 3 (and not 1 of course)
- ...

e.g. { 3, 1, 4, 2, 5} is a good shuffle

Sergey Alexandrovich Kryukov 12-Feb-13 2:08am

Is that called 'transposition'? Ah, in cycles... OK, thank you. And where is the "key" then?
—SA

Joezer BH 12-Feb-13 2:34am

The Key is the field you compare, in my example its just the numbers themselves.

Sergey Alexandrovich Kryukov 12-Feb-13 11:16am

OK, thanks...
—SA

Sergey Alexandrovich Kryukov 11-Feb-13 23:56pm

By the way, please stop posting "solutions" when your posts are not solution. All you can get is just abuse reports; and such reports can cause cancellation of your account. In case of heavy abuse, it happens.
—SA

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