Ok, let you people gues something and see how high is your IQ yea?
The story goes like this:
Theres a building, and it only consist one door with a few lift. However, the amount of lifts are not enough for the flow because there are too many people walking in and out. So, these people need to queue up to wait for their turn to use the lift. So, are there any ways that you can think of to make these people queue up and wait patiently?
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