Find Min Num Moves

Problem Overview

• Determine the minimum moves (cell color flips) to make every row and column in a grid symmetric.
• Input: N x M array of strings with 'B' and 'w'; Output: integer minimum moves; a row/column is symmetric if it reads the same forward and backward.
• Each move flips one cell; other constraints are not specified.
• Real-world domain: matrix/pattern correction and symmetry in grids.
• From Microsoft interviews; a classic coding interview problem and interview question.