4 20 matrix can be represented as a list and a column count value in Python. For example, the 3x3 matrix 1 2 3 45 6 7 8 9 can be row-wise represented as ([1,2,3,4,5,6,7,8,9], 3), where the number3...

Extracted text: 4 20 matrix can be represented as a list and a column count value in Python. For example, the 3x3 matrix 1 2 3 45 6 7 8 9 can be row-wise represented as ([1,2,3,4,5,6,7,8,9], 3), where the number3 represents the number of columns in the matrix. Similarly, 1 35 24 6 becomes ([1,3,5,2,4,6], 3). A submatrix can be defined as an (1,r,t,b) tuple, where 1 and r are left and right column indices, and t and b are top and bottom row indices (all inclusive). write a function that takes a tuple containing the list representing a matrix, and the column count of the matrix, along with another tuple representing a specific submatrix, and returns the list representation of the submatrix along with its column count as a tuple. For example, given submatrix(([1,2,3,4,5,6,7,8,9,10,11,12], 4), (1,2,0,1)) returns: ([2,3,6, 7], 2) because, ([1, 2,3,4,5,6,7,8,9,10,11,12], 4) represents: 2 3 4 5 6 7 9 10 11 12 8 and (1,2,0,1) represents the submatrix bet ween column indices 1 and 2 (both inclusive), and row indices 0 and 1 (both inclusive). So, the result becomes 2 3 6 7 which corres ponds to ([2,3,6,7],2). def submatrix (matrix, indices): return # Remove this line to answer this question.