可达集合R

先行集合Q

交集A = R∩Q

S1

1,5,7,8,9,11,13

1,2,3,5,7,9,12

1,5,9,7

S2

1,2,3,5,7,8,9,11,13

2,3

2,3

S3

1,2,3,5,7,8,9,11,13

2,3

2,3

S4

4

4,10

4

S5

1,5,7,8,9,11,13

1,2,3,5,7,9,12

1,5,9,7

S6

6,8,11,13

6

6

S7

1,5,7,8,9,11,13

1,2,3,5,7,9,12

1,5,9,7

S8

8,13

1,2,3,5,6,7,8,9,10,11,12,13

8,13

S9

1,5,7,8,9,11,13

1,2,3,5,7,9,12

1,5,9,7

S10

4,8,10,11,13

10

10

S11

8,11,13

1,2,3,5,6,7,9,10,11,12

11

S12

1,5,7,8,9,11,12,13

12

12

S13

8,13

1,2,3,5,6,7,8,9,10,11,12,13

8,13