The Challenge is to perform very fast unique function for a long and wide array.

The data is small integer representing data permutations of items like DNA and Rubik's cube faces.

Input: Array of uint8 of dimensions (m, 48) with values 0:3

Output: Array Equivalent to unique(A,'rows')

Hints:

1) Columns can be merged to form a reduced number of columns 2) Unique has the option to provide an Array and a sorting Index

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26 Solutions

21 Solvers

Last Solution submitted on May 26, 2026

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William Chris Cleveland George Berken ChrisR

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