can somebody explain me the logic of problem E of abc 168.https://atcoder.jp/contests/abc168/tasks/abc168_e.i know that the points chosen according to given condition will form perpendicular lines but i am not able to proceed further.
can somebody explain me the logic of problem E of abc 168.https://atcoder.jp/contests/abc168/tasks/abc168_e.i know that the points chosen according to given condition will form perpendicular lines but i am not able to proceed further.
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