动态数组应用实例。将动态数组运用于房间的计算，包括房间个数，总面积，平均面积，最大以及最小房间面积等-Dynamic array application example. Dynamic arrays used in the calculation of the room, including the room number, the total area, average size, maximum and minimum room size, etc.

1. Write a program that reads ten numbers supplied by the user into a single subscr ipted array, and then prints out the average of them. 2. Write a program that reads ten numbers supplied by the user into a 2 by 5 array, and then prints out the max