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The gymkhana ground, where the Pravega Pronites is going to happen, is in the shape of a convex polygon with $N$ sides. The coordinates of the $N$ vertices are given to you. The vertices are numbered from $1$ to $N$, clockwise. Navneeth, in charge of decorations, needs to know areas of certain regions in this ground. Specifically, he will ask $Q$ queries, and each query will have two integers $i$

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solution.cppC++17

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