Write a function called saddle that finds saddle points in the input matrix M. For the purposes of this problem or equal to every element in its row, and less than or equal to every element in its...

Extracted text: Write a function called saddle that finds saddle points in the input matrix M. For the purposes of this problem or equal to every element in its row, and less than or equal to every element in its column. Note that there m that has exactly two columns. Each row of indices corresponds to one saddle point with the first element of t element containing the column index. If there is no saddle point in M, then indices is the empty array.