例4.1原始数据表(a) Seattle Detroit Chicago denver COST 15 20 NEED 60 0 1800 1200 000 SUPPLY1700 1900 1300 100 ORDERED 例4.1原始数据表(b) COST NEED SUPPLYORDERED Seattle12 1600 1700 Detroit 28 1800 1900 Chicago15 「200 1300 Denver2010001100例 4.1 原始数据表（a） Seattle Detroit Chicago Denver COST 12 28 15 20 NEED 1600 1800 1200 1000 SUPPLY 1700 1900 1300 1100 ORDERED 例 4.1 原始数据表（b） COST NEED SUPPLY ORDERED Seattle 12 1600 1700 Detroit 28 1800 1900 Chicago 15 1200 1300 Denver 20 1000 1100