10982: 7-6修改版

Memory Limit:128 MB Time Limit:1.000 S
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Description

定义一个哺乳动物类Mammal,构造函数输出一行"Constructor of Mammal.";析构函数输出一行"Destructor of Mammal."。

再由此派生出狗类Dog,构造函数输出"Constructor of Dog.";析构函数输出一行"Destructor of Dog."。

从键盘输入一个正整数n,创建n个Dog类对象,要求在全部构造函数调用结束之后再自动调用全部析构函数。

Sample Input Copy

2

Sample Output Copy

Constructor of Mammal.
Constructor of Dog.
Constructor of Mammal.
Constructor of Dog.
Destructor of Dog.
Destructor of Mammal.
Destructor of Dog.
Destructor of Mammal.