编码

可达集合R (Si)

先行集合Q (Si)

交集 $A=R\cap Q$

S1

1, 4, 5, 6

1

1

S2

2, 3, 4, 5, 6, 7, 9, 13

2

2

S3

3, 4, 5, 6, 9, 13

2, 3

3

S4

4, 5, 6

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16

4, 5, 6

S5

4, 5, 6

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16

4, 5, 6

S6

4, 5, 6

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16

4, 5, 6

S7

4, 5, 6, 7

2, 7

7

S8

4, 5, 6, 8, 9, 13

8

8

S9

4, 5, 6, 9

2, 3, 8, 9, 12

9

S10

4, 5, 6, 10, 13

10, 14, 15, 16

10

S11

4, 5, 6, 11

11, 14, 15, 16

11

S12

4, 5, 6, 9, 12

12

12

S13

4, 5, 6, 13

2, 3, 8, 10, 13, 14, 15, 16

13

S14

4, 5, 6, 10, 11, 13, 14, 15, 16

14, 15, 16

16, 14, 15

S15

4, 5, 6, 10, 11, 13, 14, 15, 16

14, 15, 16

16, 14, 15

S16

4, 5, 6, 10, 11, 13, 14, 15, 16

14, 15, 16

16, 14, 15