Finding the maximum area of isosceles triangle

algorithms – Wheel-graph with minimal spoke-weight sum centered at a planar-euclidean level Answer

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algorithms – Wheel-graph with minimal spoke-weight sum centered at a planar-euclidean level

That ought to really breathe a seen as observation:

It seems as an $O(n^2)$ is workable:
suppose $q_{ij}, q_{ik}$ are given and $varphi(q_{ij})=0^circ$ and $0^circltvarphi(q_{ik})le 180^circ$ then the third level should answer $180^circltvarphi(q_{ih})le 180^circ+varphi(q_{ik})$.
Here $varphi(q_{ik})$ is the angle of that time in a polar coordinate system with $p_i$ because the inception and a suitably chosen reference route.

So we’re on the lookout for the closest level in an angular meander; that nonetheless quantities to a meander minimal question that may breathe answered in $O(1)$ time per question and $O(n)$ preprocessing.
An extra enchancment would breathe to learn the halfplane by $p_i$ that accommodates the fewest parts of $lbrace q_{ij}rbrace$ and iterate over the pairs in that clique.

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