Given a vector with an even number of elements, rearrange it so that the elements in its first half are switched with those in the second half.

For example, given a vector:

 Vec = [23  24  6  15  15  20  22  23  9  21]

will result in

 Vec = [20  22  23  9  21  23  24  6  15  15]
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Last Solution submitted on May 23, 2026

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Etienne 龙 bao Angelo

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