Question

What is doomsday protocol?​

Answer 1

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$\implies$ The Doomsday rule is an algorithm of determination of the day of the week for a given date.

$\implies$It provides a perpetual calendar because the Gregorian calendar moves in cycles of 400 years.

Answer 2

Answer:

The doomsday rule is an algorithm of determination of the day of the week for a given date.It provides a perpetual calendar because the Gregorian calendar moves in cycles of 400...years .The algorithm is simple enough that it can be computed mentally.

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