实验8：Problem D: 选举班干部了！

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Problem D: 选举班干部了！

Time Limit: 1 Sec Memory Limit: 128 MB
Submit: 531 Solved: 308
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Description

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 Input

Tom 0 2015 Monitor 3 Jack 1 2015 Mary 0 2015 Sherry 1 2015

Sample Output

A 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 = Monitor. name = 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.

HINT

string类是C++提供的类，在头文件string中，可以用#include <string>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

append.cc,

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#include<iostream>
#include<string>
using namespace std;
class Student{
protected:string name;bool sex;int grade;Student *next;
public:Student(string _name, bool _sex, int _grade):name(_name),sex(_sex),grade(_grade),next(NULL){cout<<"A student named by "<<name<<" is created!"<<endl;}~Student(){cout<<"A student named by "<<name<<" is erased."<<endl;}void showInfo(){cout<<"name = "<<name<<", sex = "<<sex<<", grade = "<<grade<<";";}Student* getNext(){return next;}void setNext(Student* s){next=s;}
};
class StudentCadre:public Student{
protected:string position;
public:StudentCadre(string _name, bool _sex, int _grade, string pos):Student(_name,_sex,_grade),position(pos){cout<<"A student cadre with position "<<position<<" is created."<<endl;}~StudentCadre(){cout<<"A student named by "<<name<<" is erased."<<endl;};void showInfo(){cout<<"name = "<<name<<", sex = "<<sex<<", grade = "<<grade<<"; position = "<<position<<".";}};
int main()
{int num;string name, position;bool sex;int grade;Student *header, *student, *curStudent;cin>>name>>sex>>grade>>position;header = new StudentCadre(name, sex, grade,position);curStudent = header;cin>>num;for (int i = 0; i < num; i++){cin>>name>>sex>>grade;student = new Student(name, sex, grade);curStudent -> setNext(student);curStudent = curStudent -> getNext();}((StudentCadre*)header) -> showInfo();cout<<endl;curStudent = header;while (curStudent -> getNext() != NULL){curStudent = curStudent -> getNext();curStudent->showInfo();cout<<endl;}curStudent = header;while (curStudent != NULL){student = curStudent;curStudent = curStudent -> getNext();delete student;}return 0;
}

转载于:https://www.cnblogs.com/auto1945837845/p/5425590.html