imported>Unknown at 05:23, 7 February 2021

2021-02-07T05:23:02Z

New page

#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <fstream>
using namespace std;

class ScoresTable
{
private :
string _StudentName;
vector<int> _Scores;
int _TotalScore;
double _AverageScore;

public :

ScoresTable(const string& aStudentName) : _StudentName(aStudentName)
{
_TotalScore = 0;
_AverageScore = 0.0;
}

void addScoreToVector(int aScore)
{
_Scores.push_back(aScore);
}

void calculateTotalScore()
{
for(unsigned int i = 0 ; i < _Scores.size() ; ++i)
_TotalScore += _Scores[i];
}

void calculateAverageScore()
{
_AverageScore = (double)_TotalScore / 4.0;
}

const string& getName() const
{
return _StudentName;
}

int getnthScore(int n) const
{
return _Scores[n];
}

int getTotalScore() const
{
return _TotalScore;
}

double getAverageScore() const
{
return _AverageScore;
}
};

class ScoreProcessor
{
private :
vector<ScoresTable*> _StudentList;

class ScoreSort
{
public :
bool operator()(ScoresTable* stu1, ScoresTable* stu2) const
{
return stu1->getTotalScore() > stu2->getTotalScore();
}
};

class NameSort
{
public :
bool operator()(ScoresTable* stu1, ScoresTable* stu2) const
{
return stu1->getName() < stu2->getName();
}
};

void showNameAndCuri()
{
cout << "이름\t국어\t영어\t수학\t과학\t총점\t평균\n";
}

public :
virtual ~ScoreProcessor()
{
for(unsigned int i = 0 ; i < _StudentList.size() ; ++i)
delete _StudentList[i];
}

void dataReader()
{
ifstream anInputer("test.txt");
ScoresTable* aTable;
while(!anInputer.eof())
{
string aName;
int aScore;
anInputer >> aName;
aTable = new ScoresTable(aName);
for(int i = 0 ; i < 4 ; ++i)
{
anInputer >> aScore;
aTable->addScoreToVector(aScore);
}
_StudentList.push_back(aTable);
aTable->calculateTotalScore();
aTable->calculateAverageScore();
}
}

void showAllStudentsInfo()
{
showNameAndCuri();
for(unsigned int i = 0 ; i < _StudentList.size() ; ++i)
{
cout << _StudentList[i]->getName() << "\t";

for(int j = 0 ; j < 4 ; ++j)
cout << _StudentList[i]->getnthScore(j) << "\t";

cout << _StudentList[i]->getTotalScore() << "\t";
cout << _StudentList[i]->getAverageScore() << endl;
}
cout << endl;
}

void scoreSortAndShow()
{
sort(_StudentList.begin(), _StudentList.end(), ScoreSort());
showAllStudentsInfo();
}

void nameSortAndShow()
{
sort(_StudentList.begin(), _StudentList.end(), NameSort());
showAllStudentsInfo();
}
};

class Admin
{
private :
ScoreProcessor _aScoreProcessor;

void showMenu()
{
cout << "STL을 이용한 성적관리 프로그램" << endl;
cout << "1. 현재 목록 보기" << endl;
cout << "2. 이름순으로 소트해서 보기" << endl;
cout << "3. 점수순으로 소트해서 보기" << endl;
cout << "4. 끝" << endl;
cout << "Select : " ;
}

int getInputNumber()
{
int ch;
cin >> ch;
return ch;
}

public :

Admin()
{
_aScoreProcessor.dataReader();
}

void process()
{
while(1)
{
showMenu();
switch(getInputNumber()) // 별루 맘에 안들긴 하지만--; 그냥 보여주는 거니깐
{
case 1:
_aScoreProcessor.showAllStudentsInfo();
break;
case 2:
_aScoreProcessor.nameSortAndShow();
break;
case 3:
_aScoreProcessor.scoreSortAndShow();
break;
case 4:
return;
}
}
}
};

int main()
{
Admin gogo;
gogo.process();

return 0;
}

CppStudy 2002 2/STL과제/성적처리 - Revision history

imported>Unknown at 05:23, 7 February 2021