Answer: They must be dated.
Explanation: If pyrotechnic VDSs are used, they must be dated. Expired VDSs may be carried on board, but a minimum of three unexpired VDSs must be carried in the vessel.
The notation would be O (n-1) because there would be no need to compare with the first bit however this notation is most commonly noted as O (n) but the first is also technically correct
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