|
| 可达集合R | 先行集合Q | 交集T = R ∩ Q |
| S1 | 1,3,4,8,9,12,13 | 1 | 1 |
| S2 | 2,3,4,5,6,8,9,10,11,12,13 | 2 | 2 |
| S3 | 3,4,8,9,12,13 | 1,2,3,6,7,8,10 | 8,3 |
| S4 | 4,9,12,13 | 1,2,3,4,6,7,8,10 | 4 |
| S5 | 5,9,11,12,13 | 2,5,11 | 11,5 |
| S6 | 3,4,6,8,9,10,12,13 | 2,6 | 6 |
| S7 | 3,4,7,8,9,12,13 | 7 | 7 |
| S8 | 3,4,8,9,12,13 | 1,2,3,6,7,8,10 | 8,3 |
| S9 | 9,12,13 | 1,2,3,4,5,6,7,8,9,10,11 | 9 |
| S10 | 3,4,8,9,10,12,13 | 2,6,10 | 10 |
| S11 | 5,9,11,12,13 | 2,5,11 | 11,5 |
| S12 | 12,13 | 1,2,3,4,5,6,7,8,9,10,11,12,13 | 12,13 |
| S13 | 12,13 | 1,2,3,4,5,6,7,8,9,10,11,12,13 | 12,13 |