cpp] 예제로 바로 알아보는 c와 c++ - 31

#include <iostream.h>
#include <string.h>
struct Score{
 char * name;
 int kor, eng, mat, tot;
 double ave;
public:
 void Input(void);
 void Calc(void);
 void Output(void);
 void Delete(void);
};
void Score::Input(void)
{
 char temp[100];
 unsigned int len;
 cout << "이름 : ";
 cin >> temp;
 len = ::strlen(temp);
 if(len == 0) name = "";
 else{
  name = new char[len + 1];
  strcpy(name, temp);
 }
 cout << "점수(kor, eng mat) :";
 cin >> kor >> eng >> mat;
 Calc();
}
void Score::Calc(void)
{
 tot = kor + eng + mat;
 ave = tot / 3.;
}
void Score::Output(void)
{
 char ch[] = "FFFFFFDCBAA";
 cout << name << '\t' << ch[kor / 10] << '\t' << ch[eng / 10] << '\t' << ch[mat / 10] << '\t'
  << tot << '\t' << ave << endl;
}
void Score::Delete(void)
{
 if(*name != '\0') delete [] name;
}
void main()
{
 int cnt;
 cout << "입력할 총 인원 : ";
 cin >> cnt;
 if(cnt == 0) return;
 Score * pScore = new Score[cnt];
 if(!pScore) return;
 for(int n = 0; n < cnt; n++){
  pScore[n].Input();
 }

 cout << "\n##### 성적처리 #####\n\n";
 cout << "이름" << '\t' << "국어" << '\t' << "영어" << '\t' << "수학" << '\t' << "총점"
  << '\t' << "평균" << endl;
 cout.precision(4);
 for(n = 0; n < cnt; n++){
  pScore[n].Output();
 }
 for(n = 0; n < cnt; n++){
  pScore[n].Delete();
 }
 delete [] pScore;
}

성적처리 프로그램 참조본.