Describe an algorithm that takes an unsorted array of axis‐aligned rectangles and returns any pair of rectangles that overlaps, if there is such a pair. Axis‐aligned means that all the rectangle sides are either parallel or perpendicular to the x‐ and y‐axis. You can assume that each rectangle object has two variables in it: the x‐y coordinates of the upper‐left corner and the bottom‐right corner.
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