Question

C++一道关于继承的题目，求大神解答，感激不尽

1001. The Person, Student, Employee, Faculty and Staff Class

Total: 56 Accepted: 25

Time Limit: 1sec Memory Limit:256MB
Description
Design a class named Person and its two derived classes named Student and Employee. Make Faculty and Staff derived classes of Employee.
Person class has the following member:
string name;
string address;
string phoneNumber;
string email;
Student class has the following member:
enum class_status{frssman,sophomore,junior,senior};
class_status status;
Employee class has the following member:
string office;
int salary;
MyDate dateHired;
Faculty class has the following member:
string officeHours;
int rank;
Staff class has the following member:
string title;
MyDate class contains the following member:
int year;
int month;
int day;

Override the toString function in each class to display the class name.
For example, in Employee class:
string toString()
{
return "Employee";
}
Make sure that the following code:
void f(Person &p)
{
cout << p.toString() << endl;
}
Person person;
Student student;
Employee employee;
Faculty faculty;
Staff staff;
f(person);
f(student);
f(employee);
f(faculty);
f(staff);

output:
Person
Student
Employee
Faculty
Staff

Answer 1

#include<iostream>
#include<string>

using namespace std;

class MyDate {
int year;
int month;
int day;
};

class Person {
string name;
string address;
string phoneNumber;
string email;
public:
virtual string toString() { //这个函数要被重载的，必须定义成virtual
return "Person";
}
};

class Student : public Person {
enum class_status {
frssman, sophomore, junior, senior
};

class_status status;
public:
string toString() {
return "Student";
}
};

class Employee : public Person {
string office;
int salary;
MyDate dateHired;
public:
virtual string toString() { //这个函数要被重载的，必须定义成virtual
return "Employee";
}
};

class Faculty : public Employee {
string officeHours;
int rank;
public:
string toString() {
return "Faculty";
}
};

class Staff : public Employee {
string title;
public:
string toString() {
return "Staff";
}
};

void f(Person &p) { //这个函数不能放在class中。
cout << p.toString() << endl;
}

int main() {

Person person;
Student student;
Employee employee;
Faculty faculty;
Staff staff;
f(person);
f(student);
f(employee);
f(faculty);
f(staff);

system("PAUSE");
return 0;
}

Answer 2

   
//你的算法不太对，可以借助数组来实现
#include<iostream.h>
#include<math.h>
void main()
{
    int newx=0,k,p,j,i=0;
    unsigned long x,a;
    int b[80];
    cout<<"x=";
    cin>>x;
    cout<<"k=";
    cin>>k;
        a=x;p=k;
    while(x>9)
    {
        j=i++;
        b[j]=x%10;
        x=(x-b[j])/10;
        if(x<9)
            b[i]=x;
        //cout<<b[j];
    }
    while(k-1!=0)
    {
        b[k-1]=b[k-2];
        k--;
    }
    if(p>i+1)
    {
        cout<<"newx is "<<a<<endl;
    }
    else
    {
        for(j=1;j<=i;j++)
        {
            newx=newx+b[j]*pow(10,j-1);
        }
        cout<<"newx is "<<newx<<endl;
    }
}

追问

不知道请不要乱回答好吗(´･_･`)