for an n-dimensional vector x, the function should return another vector 2n-dimension which each element is repeated twice. Example : in->[2 3 NaN 5] and out->[2 2 3 3 NaN NaN 5 5]

Solution Stats

1176 Solutions

635 Solvers

Last Solution submitted on Feb 05, 2026

Last 200 Solutions

Problem Comments

Solution Comments

Show comments
Loading...