For a given vector, find all numbers that repeated 2 times or more than 2 times.

Example:

A=[1 2 3 3 4 5 6 6 7]
y=[3 6]

Example:

A=[1 1 1 1 0 1 1 2 2 9]
y=[1 2]

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Last Solution submitted on Apr 14, 2026

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