Long description

A tree starts with a Root directory labeled 1. Root directory has five possibilities 2, 5, 16, 18, and 27. Possibility 16 is highlighted. Possibility 2 has two possibilities 3 and 4. Possibility 5 has one possibility 6. Possibility 16 has one possibility 17 and is highlighted. Possibility 18 has one possibility 19. Possibility 27 has two possibilities 28 and 29. Possibility 6 has two possibilities 7 and 10 and is labeled a Directory that has not changed. Possibility 27 has two possibilities 28 and 29. Possibility 19 has two possibilities 20 and 22. Possibility 29 has one possibility 30. Possibility 7 has two possibilities 8 and 9 and highlighted. Possibility 10 has two possibilities 11 and 14. Possibility 20 has one possibility 21, highlighted and labeled a File that has changed. Possibility 22 has one possibility 23. Possibility 30 has two possibilities 31 and 32 and is labeled a File that has not changed. Possibility 11 has two possibilities 12 and 13. Possibility 14 has one possibility 15. Possibility 23 has two possibilities 24, 25, and 26, and 24, 26 are highlighted. All leaf nodes are represented in circles and other nodes are represented in squares.