Minimal Angle of Separation

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Alan is stuck in quadrant 1 of a coordinate plane and it has $n$ vectors on the plane, each of them starting at the origin, to come out of the place there is gateway between between two special vectors, the special vectors are the ones which have the minimal angle of separation among all pairs of vectors. Your task is to help Alan by providing him with the numbers of the vectors (i.e the number

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L1 Observation

L2 Technique

L3 Approach

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solution.cppC++17

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