供应集

物资原料1

物资原料2

物资原料3

物资原料4

物资原料5

物资原料6

需求商1

[3, 10]

2

[3, 9]

4

5

2

需求商2

1

3

[4, 7]

[1, 9]

[2, 7]

[4, 7]

需求商3

2

[5, 8]

[6, 8]

[3, 7]

[3, 10]

[6, 9]

需求商4

[4, 7]

[6, 7]

1

[2, 8]

[6, 9]

1

需求商5

[6, 8]

1

[2, 10]

5

1

[5, 8]

需求商6

5

[4, 10]

5

6

[6, 8]

3