Finding the matrix

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You are given a matrix B with size N × N. Each element of this matrix is an integer from the set {-1, 0, 1}. Determine if it's possible to express B as A · AT, where A is a matrix of integers with size N × N. (Here, AT is the transpose of A; see below for its definition.) If it is possible, find the lexicographically smallest A such that B = A · AT. The transpose of a matrix is created by flippi

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solution.cppC++17

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