Problem 867. Replicate elements in vectors

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] -> []
Solve

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50.67% Correct | 49.33% Incorrect
Last Solution submitted on Nov 21, 2025

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