Question 10
Min encodes a row of black/white cells recursively:
- If all cells in the current row are white, write W.
- If all are black, write B.
- Otherwise write X, then encode the left half by the same rules, followed by the right half.
Here are examples.

What is the encoding of this row?

- If all cells in the current row are white, write W.
- If all are black, write B.
- Otherwise write X, then encode the left half by the same rules, followed by the right half.
Here are examples.

What is the encoding of this row?
