New Year s Day is one of important days for many people in the world during the year. Most people spend the New Year s Day in hotels. January 1st is considered as the New Year s Day. Most companies, shops, school, and government offices are closed du

This queue object is passed to the cook class, i.e. the chefs, who ‘cook’ each of the items in the order, simulating cooking the food items. One cook object represents one cook.

用队列模拟食堂打饭过程，并计算出每个人打饭的平均等待时间(The queue is used to simulate the canteen cooking process, and the average waiting time for each person to cook meals is calculated.)