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Problem 2138. union without repitition

Let

 a = [9 9 9 9 9 9 8 8 8 8 7 7 7 6 6 6 5 5 4 2 1]
 b = [1 1 1 3 3 3 3 3 4 4 4 4 4 10 10 10]

Output should be

 [9 8 7 6 5 4 2 1 3 10]

Solution Stats

58.33% Correct | 41.67% Incorrect
Last Solution submitted on Oct 24, 2019

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