The Last Horcrux

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In order to find the last horcrux, Harry has to solve a strange 3-D matrix problem. Help Harry, so that he is able to find the last Horcrux. The problem goes as follows : A 3-D Matrix is given. Each block in this matrix contains 0 initially. The first block is defined by the coordinate (1,1,1) and the last block is defined by the coordinate (N,N,N). There are two types of queries. UPDATE x y z W

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solution.cppC++17

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