Sales demand for products A and B are larger than the factory capacity. The

factory employs one worker P$,$ one worker R and one worker S in each shift.

Work hour policy is $24$ hours daily, $5$ days per week. The worker in the

second shift continues the job on the same workplace as the same worker in

the previous shift. Workers in the same shift cannot replace each other, and all

daily operations are given in the diagram.

Workplace setup for worker S is required always when he switches from

product A to product B and vice versa. The setup duration is $180$ minutes.Sales demand for products A and B are larger than the factory capacity. The

factory employs one worker P$,$ one worker R and one worker S in each shift.

Work hour policy is $24$ hours daily, $5$ days per week. The worker in the

second shift continues the job on the same workplace as the same worker in

the previous shift. Workers in the same shift cannot replace each other, and all

daily operations are given in the diagram.

Workplace setup for worker S is required always when he switches from

product A to product B and vice versa. The setup duration is $180$ minutes.Sales demand for products A and B are larger than the factory capacity. The

factory employs one worker P$,$ one worker R and one worker S in each shift.

Work hour policy is $24$ hours daily, $5$ days per week. The worker in the

second shift continues the job on the same workplace as the same worker in

the previous shift. Workers in the same shift cannot replace each other, and all

daily operations are given in the diagram.

Workplace setup for worker S is required always when he switches from

product A to product B and vice versa. The setup duration is $180$ minutes.