flood-fill

Flood Fill in Python Question: I’m complitely new to Flood Fill algorithm. I checked it out from Wikipedia (http://en.wikipedia.org/wiki/Flood_fill). But didn’t become that much wiser. I’m trying to use it in following situation. I have a matrix: matrix = [[“a”, “a”, “b”, “a”, “a”, “b”], [“a”, “b”, “b”, “a”, “b”, “b”], [“b”, “a”, “b”, “a”, …