打卡12

#include <bits/stdc++.h>
using namespace std;
ostream &sp(ostream &output);
class Person
{
protected:
string name;
int age;

public:
Person() {}
~Person() {}
Person(string p_name, int p_age) : name(p_name), age(p_age) {}
void display() { cout << name << ":" << age << endl; }
};

class Student : public Person
{
public:
int ID; //学号
float cpp_score; //cpp上机成绩
float cpp_count; //cpp上机考勤
float cpp_grade = 0; //cpp总评成绩
//总评成绩计算规则：cpp_grade = cpp_score * 0.9 + cpp_count * 2;
public:
Student() {}
~Student() {}
Student(string p1, int p2, int a, float b, float c) : Person(p1, p2), ID(a), cpp_score(b), cpp_count(c) {}

void print();
float count();
};

float Student::count()
{
return cpp_score * 0.9 + cpp_count * 2;
}

void Student::print()
{
cpp_score = count();
cout << fixed << setprecision(1) << ID << sp << name << sp << cpp_score << endl;
}

class Teacher : public Person
{
private:
int ID; //教师工号
Student stu[100]; //学生数组
int count = 0; //学生数目，最多不超过100
float cpp_average = 0; //班级cpp平均分
public:
Teacher() {}
~Teacher() {}
Teacher(string a, int b, int c) : Person(a, c), ID(b) {}
void Add(Student &stu1); //在学生数组中增加一个学生记录
void average(); //计算当前班级cpp平均成绩cpp_average
void print(); //输出当前班级学生的信息
};

void Teacher::Add(Student &stu1)
{
stu[count++] = stu1;
}

void Teacher::average()
{
for(int i = 0; i < count;++i)
{
stu[i].cpp_grade = stu[i].count();
cpp_average += stu[i].cpp_grade;
}
cpp_average /= count;
}

void Teacher::print()
{
average();
cout <<fixed<<setprecision(1)<< ID<<sp<<name<<sp<<count<<sp<<cpp_average<<endl;
for(int i =0; i < count;++i)
{
stu[i].print();
}
}
int main()
{
int id, age;
string name;
float cpp_score = 0, cpp_count = 0, cpp_grade = 0;
cin >> name >> id >> age;
Teacher ans(name, id, age);
Student ans2;
while (1)
{
cin >> name;
if (name == "0")
break;
cin >> id >> age >> cpp_score >> cpp_count;
ans2 = Student(name,age,id,cpp_score,cpp_count);
ans.Add(ans2);
}
ans.print();
}
ostream &sp(ostream &output)
{
return output << " ";
}