Write a function that accepts as input a vector and returns the same vector, but retaining only the first occurrence of an element whenever there is consecutive repetition of this element.

Example:

 in -> [1 2 2 2 3 4 4 3 5]
 out-> [1 2 3 4 3 5]
Solve

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Last Solution submitted on Jan 24, 2026

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Boldizsar Logan Mark 耀祖

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