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Problem 1985. How unique?

Created by Jan Orwat

Sometimes, when we check unique entries of vector we would like to know how many times each value occurs.

Given vector of numbers A return vector U of unique values of A and corresponding vector H with occurrences.

Example:

   in:  A = [2 2 2 3 3 2 3 8 6 5 6]
  out:  U = [2 3 8 6 5]
        H = [4 3 1 2 1]  

Problem Group

Solution Statistics

19 correct solutions 32 incorrect solutions
Last solution submitted on Dec 03, 2014

Solution Comments