How to calculate the stage increase of the stock?

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has the following requirements:

set N minutes to monitor the rise or fall of a stock by X% within N minutes, then notify the user.

how is it more efficient?

the stupidest way to achieve the above demand is to calculate whether the increase is a hit based on the current price tracing the highest or lowest price in the first N minutes.

but I feel that this algorithm is not efficient. Is there a better algorithm?

Algorithm stock

Dec.20,2021

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