元素 | 可达集合 | 先行集合 | 交集 | 层级 |
1 | 1,2,3,4,5,8 | 1,6,7 | 1 |
|
2 | 2,3,4,5,8 | 1,2,3,4,5,6,7,9 | 2,3,4,5 |
|
3 | 2,3,4,5,8 | 1,2,3,4,5,6,7,9 | 2,3,4,5 |
|
4 | 2,3,4,5,8 | 1,2,3,4,5,6,7,9 | 2,3,4,5 |
|
5 | 2,3,4,5,8 | 1,2,3,4,5,6,7,9 | 2,3,4,5 |
|
6 | 1,2,3,4,5,6,7,8 | 6 | 6 |
|
7 | 1,2,3,4,5,7,8 | 6,7 | 7 |
|
8 | 8 | 1,2,3,4,5,6,7,8,9 | 8 | I |
9 | 2,3,4,5,8,9 | 9 | 9 |
|