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Write a function that, given a 2D array, returns a new 2D array containing only the rows that have at least one non-zero element in the row. int** remove_allzeros_rows(int** matrix, int nrows, int ncolumns, int& new_nrows); If nrow or ncolumns is zero, throw an exception.

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Write a function that, given a 2D array, returns a new 2D array containing only the rows that have a...
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