Question 11
A pirate beaver has a huge square treasure map divided into small squares. The boat is too small to carry it, so the beaver cleverly compresses it into a tree in a notebook. If every small square in a region has the same color, draw a square of that color. Otherwise draw a circle, divide the region into four equal quadrants, and recursively encode them. The examples establish child order: upper-right 1, upper-left 2, lower-left 3, lower-right 4.
Which of the four maps is encoded by this tree?
Which of the four maps is encoded by this tree?