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KD Point Nearest Neighbors API

Return exact Euclidean nearest neighbors of bounded two-dimensional point queries.

Return exact Euclidean nearest neighbors of bounded two-dimensional point queries. Balanced median-split two-dimensional KD tree for 1..1024 supplied points and at most 256 queries, each finite coordinate within±1e9, plus shared input limits. Euclidean squared distances use ordinary IEEE754 arithmetic and twelve-significant-digit display; equal computed distances choose the smallest original point index. No approximate-neighbor or high-dimensional performance claim. Uses supplied non-sensitive data only. No live account access, automatic changes or certification. Calculation profile 1.0.0; approximate non-integer numeric outputs use twelve significant digits; representable safe integer numbers and declared decimal-string integers are preserved.

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