Question: Suppose you are given a set S of n line segments in the plane, such that each makes a positive angle with the x-axis of

Suppose you are given a set S of n line segments in the plane, such that each makes a positive angle with the x-axis of either 30^◦ or 60^◦ (so there are only two possible slopes for the lines in S). Describe an efficient algorithm for finding all the pairs of intersecting segments in S. What is the running time of your method?

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