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Find non-duplicate values in an Array

Problem Statement


Given an Array, return the elements that are present exactly once in the array.

You need to write a method called non_duplicated_values to accomplish this task.

Example: Given [1,2,2,3,3,4,5], the method should return [1,4,5]

[reset] Need a hint? See the Solution

Hint

You can use the method Array#count to count the frequency of any element in the given array

[9,3,4,9,5].count(9) will return the value 2.


You might also want to use Array#find_all, more information can be found here

Output Window

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