human
Largest possible square submatrix with maximum AND value | Function to calculate and return the length of square submatrix with maximum AND value.
Extract dimensions.
Auxiliary array Initialize auxiliary array.
c : Stores the maximum value in the matrix p : Stores the number of elements in the submatrix having maximum AND value.
Iterate over the matrix to fill the auxiliary matrix.
Find the max element in the matrix side by side.
Fill first row and column with 1 's.
For every cell , check if the elements at the left , top and top left cells from the current cell are equal or not.
Store the minimum possible submatrix size these elements are part of.
Store 1 otherwise.
Checking maximum value.
If the maximum AND value occurs more than once.
Update the maximum size of submatrix.
Final output.
Driver Code"
How can the above be solved in Python?

=====
What is a code to largest possible square submatrix with maximum AND value and the other steps required?
assistant
#Here is code to largest possible square submatrix with maximum AND value and the other steps required.
 def MAX_value ( arr ) :
	row = len ( arr )
	col = len ( arr )
	dp = [ [ 0 for i in range ( col ) ] for j in range ( row ) ]
	i , j = 0 , 0
	c , p = arr [ 0 ] [ 0 ] , 0
	d = row
	for i in range ( d ) :
		for j in range ( d ) :
			if ( c < arr [ i ] [ j ] ) :
				c = arr [ i ] [ j ]
			if ( i == 0 or j == 0 ) :
				dp [ i ] [ j ] = 1
			else :
				if ( arr [ i - 1 ] [ j - 1 ] == arr [ i ] [ j ] and arr [ i - 1 ] [ j ] == arr [ i ] [ j ] and arr [ i ] [ j - 1 ] == arr [ i ] [ j ] ) :
					dp [ i ] [ j ] = min ( dp [ i - 1 ] [ j - 1 ] , min ( dp [ i - 1 ] [ j ] , dp [ i ] [ j - 1 ] ) ) + 1
				else :
					dp [ i ] [ j ] = 1
	for i in range ( d ) :
		for j in range ( d ) :
			if ( arr [ i ] [ j ] == c ) :
				if ( p < dp [ i ] [ j ] ) :
					p = dp [ i ] [ j ]
	return p * p
arr = [ [ 9 , 9 , 3 , 3 , 4 , 4 ] , [ 9 , 9 , 7 , 7 , 7 , 4 ] , [ 1 , 2 , 7 , 7 , 7 , 4 ] , [ 4 , 4 , 7 , 7 , 7 , 4 ] , [ 5 , 5 , 1 , 1 , 2 , 7 ] , [ 2 , 7 , 1 , 1 , 4 , 4 ] ]
print ( MAX_value ( arr ) )