要素

可达集合R(Si)

先行集合B(Si)

交集C(Si) = R(Si)∩B(Si)

C(Si)∩R(Si)

s1

1, 3, 4, 5, 7, 8

1

1

L2

s2

2, 3, 4, 5, 7, 8

2

2

L2

s3

3, 4, 5, 7, 8

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11

3, 4, 5, 7, 8

L1

s4

3, 4, 5, 7, 8

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11

3, 4, 5, 7, 8

L1

s5

3, 4, 5, 7, 8

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11

3, 4, 5, 7, 8

L1

s6

3, 4, 5, 6, 7, 8

6

6

L2

s7

3, 4, 5, 7, 8

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11

3, 4, 5, 7, 8

L1

s8

3, 4, 5, 7, 8

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11

3, 4, 5, 7, 8

L1

s9

3, 4, 5, 7, 8, 9, 10, 11

9, 10, 11

9, 10, 11

L2

s10

3, 4, 5, 7, 8, 9, 10, 11

9, 10, 11

9, 10, 11

L2

s11

3, 4, 5, 7, 8, 9, 10, 11

9, 10, 11

9, 10, 11

L2

s12

12

12

12

L1