Problem 38. Return a list sorted by number of occurrences

Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x.

Ties are resolved by a sort from lowest to highest.

So if

 x = [1 2 2 2 3 3 7 7 93]


 y = [2 3 7 1 93]

Solution Stats

49.06% Correct | 50.94% Incorrect
Last solution submitted on Nov 24, 2017

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