Problem D 选举班干部了.docx

Problem D 选举班干部了！Time Limit:1 SecMemory Limit:128 MBSubmit:805Solved:469SubmitStatusWeb BoardDescription新学期伊始，某班要通过竞争上岗方式竞选班干部。包括班长、团支书等。现在需要你来设计2个类Student和StudentCadre来模拟这一过程。1.Student类是学生类，包括（1）属性：string name姓名。bool sex性别。int grade年级。Student *next指向下一个学生指针。（2）方法： 构造函数Student(string _name, bool _sex, int _grade)初始化一个对象。注意：其中的next初始化为NULL。 析构函数。 void showInfo()输出一个学生的信息。next除外。 Student* getNext()获得next指针。 void setNext(Student*)设置next指针指向对象。2. StudentCadre类是Student类的派生类，包括：（1）属性：string position表示竞聘岗位。（2）方法： StudentCadre(string _name, bool _sex, int _grade, string pos)构造函数，初始化各种属性。 析构函数。 void showInfo()显示信息。构造函数和析构函数都有输出，具体见样例。Input输入有多行。第1行有4部分：姓名、性别（0或1）、年级（整数）和岗位。第2行是一个正整数N，表示有N个学生支持该人竞聘相应岗位。之后有N行，每行有3个部分，分别是一个学生的姓名、性别和年级。Output见样例。Sample InputTom 0 2015 Monitor3Jack 1 2015Mary 0 2015Sherry 1 2015Sample OutputA student named by Tom is created!A student cadre with position Monitor is created.A student named by Jack is created!A student named by Mary is created!A student named by Sherry is created!name = Tom, sex = 0, grade = 2015; position = M = Jack, sex = 1, grade = 2015;name = Mary, sex = 0, grade = 2015;name = Sherry, sex = 1, grade = 2015;A student named by Tom is erased.A student named by Jack is erased.A student named by Mary is erased.A student named by Sherry is erased.HINTstring类是C+提供的类，在头文件string中，可以用#include 来使用这个类。该类的对象可以直接利用赋值运算符（=）进行复制，也可以直接利用cout输出，或利用cin输入。Append Code#include#includeusing namespace std;class Studentpublic:string name;bool sex;int grade;Student *next;Student(string _name, bool _sex, int _grade):name(_name),grade(_grade),sex(_sex),next(NULL)coutA student named by name is created!endl;Student()coutA student named by name is erased.endl;void showInfo()coutname = name, sex = sex, grade = grade;Student* getNext()return next;void setNext(Student*a)next =a;class StudentCadre :public Studentstring position;public:StudentCadre(string _name, bool _sex, int _grade, string pos):Student( _name, _sex, _grade),position(pos)coutA student cadre with position position is created.endl;StudentCadre()void showInfo()coutname = name, sex = sex, grade = grade; position = positionnamesexgradeposition;header = new StudentCadre(name, sex, grade,position);curStudent = header;cinnum;for (int i = 0; i namesexgrade;student = new Student(name, sex, grade);curStudent - setNext(student);curStudent = curStudent - getNext();(StudentCadre*)header) - showI