Given 2 elevators (named "left" and "right") in a building with 3 floors (numbered 0
to 2
), write a function
elevator
accepting 3 arguments (in order):
left
- The current floor of the left elevatorright
- The current floor of the right elevatorcall
- The floor that called an elevator
It should return the name of the elevator closest to the called floor ("left"
/"right"
).
In the case where both elevators are equally distant from the called floor, choose the elevator to the right.
You can assume that the inputs will always be valid integers between 0-2.
Examples:
elevator(0, 1, 0); // => "left"
elevator(0, 1, 1); // => "right"
elevator(0, 1, 2); // => "right"
elevator(0, 0, 0); // => "right"
elevator(0, 2, 1); // => "right"
def elevator(left, right, call)
(left - call).abs < (right - call).abs ? 'left' : 'right'
end