The image shows code blocks and corresponding Python code defining two functions: stop() and free_from_right(). The stop() function checks if there is a wall to the left. If there is, it moves down, fills a cell, moves right, and fills another cell. Otherwise, it calls itself recursively. The free_from_right() function contains a loop that continues as long as there is free space to the right. Inside the loop, it moves down, fills a cell, moves right, and fills another cell.
This function first checks wall_from_left(). If wall_from_left() returns true, it executes the following steps:
move_down())fill_cell())move_right())fill_cell())If wall_from_left() returns false, it calls the stop() function again.
The program contains a while loop that continues as long as free_from_right returns true. Inside the loop, the following steps are executed:
move_down())fill_cell())move_right())fill_cell())