(copy of Prob 867)
Replicate each element of a row vector (with NaN) a constant number of times. Examples
n=2, A=[1 2 3] -> [1 1 2 2 3 3]
n=0, A=[2 1] -> []
Avoid using for/while loops.
Solve

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Last Solution submitted on Feb 17, 2026

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Riccardo G. CXD 梓斌 Lorenzo

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