¶
학 한 해 .
CalculateGrade.h ¶
~cpp
#ifndef CALCULATEGRADE_H_
#define CALCULATEGRADE_H_
#include "Student.h"
class CalculateGrade
{
private:
static const int NUM_STUDENT; // 학 ( )
Student * student; // 학 포
public:
CalculateGrade(); //
void sort_student(); // 평
void show_good_student(); // 학
void show_bad_student(); // 학
~CalculateGrade(); // 파
};
#endif
CalculateGrade.cpp ¶
~cpp
#include <iostream>
using namespace std;
#include "CalculateGrade.h"
// 화
// - 1 해 학 하 크 .
const int CalculateGrade::NUM_STUDENT = 121;
//
CalculateGrade::CalculateGrade()
{
// 학 할
student = new Student[NUM_STUDENT];
// 화
for (int i = 1; i < NUM_STUDENT; i++)
student[i].input_grade();
}
// 평 킨.
void CalculateGrade::sort_student()
{
int p;
Student temp;
for (int i = 1; i < NUM_STUDENT; i++)
{
p = i;
for (int j = i + 1; j < NUM_STUDENT; j++)
{
if (student[p].average < student[j].average)
p = j;
}
temp = student[i];
student[i] = student[p];
student[p] = temp;
}
}
// 학( 10%) .
void CalculateGrade::show_good_student()
{
int num = NUM_STUDENT / 10;
sort_student();
cout << "학 \n";
for (int i = 1; i <= num; i++)
student[i].show();
cout << "\n\n";
}
// 학(학 1.5) .
void CalculateGrade::show_bad_student()
{
cout << "학 \n";
for (int i = 1; i < NUM_STUDENT; i++)
{
if (student[i].average < 1.5)
student[i].show();
}
cout << "\n\n";
}
// 파
CalculateGrade::~CalculateGrade()
{
delete [] student;
}
Student.h ¶
~cpp
#ifndef STUDENT_H_
#define STUDENT_H_
class Student
{
private:
static const int NUM_GRADE; // ( )
int number; // 학
double grade[4]; // 4
public:
double average; // 평
Student(); //
void find_average(); // 평 하 함
void input_grade(); // 함
void show(); // 함
};
#endif
Student.cpp ¶
~cpp
#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;
#include "Student.h"
// 화
const int Student::NUM_GRADE = 4;
//
Student::Student()
{
average = 0.0;
number = 0;
}
// 파 4 .
void Student::input_grade()
{
static char alpa_grade[9][3] = {"A+", "A", "B+", "B", "C+", "C", "D+", "D", "F"};
static double ital_grade[9] = {4.5, 4.0, 3.5, 3.0, 2.5, 2.0, 1.5, 1.0, 0.0};
static fstream fin("input.txt");
char str[3];
fin.ignore(100, ' '); // 함
fin >> number;
fin.ignore(100, ':');
// 해 학 double형 1 1 환
for (int i = 0; i < NUM_GRADE; i++)
{
fin >> str; // >> white space() 한.
for (int j = 0; j < 9; j++)
{
if (strcmp(str, alpa_grade[j]) == 0)
{
grade[i] = ital_grade[j];
break;
}
}
}
fin.ignore(100, '\n');
find_average();
}
// 4 평 한.
void Student::find_average()
{
double sum = 0.0;
for (int i = 0; i < NUM_GRADE; i++)
sum += grade[i];
average = sum / NUM_GRADE;
}
// 학 한.
void Student::show()
{
cout << "학 : " << number << " 평 : " << average << endl;
}
testCalculateGrade.cpp ¶
~cpp
#include "CalculateGrade.h"
int main()
{
CalculateGrade test;
test.show_good_student();
test.show_bad_student();
return 0;
}
