01
// golf.h
const int Len = 40;
struct golf
{
char fullname[Len];
int handicap;
};
void setgolf(golf & g, const char * name, int hc);
int setgolf(golf & g);
void handicap(golf & g, int hc);
void showgolf(const golf & g);
// golf.cpp
#include <iostream>
#include <cstring>
#include <string>
#include "golf.h"
void setgolf(golf & g, const char * name, int hc)
{
strcpy(g.fullname, name);
g.handicap = hc;
}
int setgolf(golf & g)
{
using std::cout;
using std::cin;
char name[50];
cout << "이름을 입력하세요 : ";
cin.getline(name, 49);
if (name[0] == '\0')
{
cout << "입력을 종료합니다.\n";
std::cin.clear();
return 0;
}
int hc;
cout << "핸디캡을 입력하세요 : ";
cin >> hc;
cin.get();
strcpy(g.fullname, name);
g.handicap = hc;
return 1;
}
void handicap(golf & g, int hc)
{
g.handicap = hc;
}
void showgolf(const golf & g)
{
using std::cout;
using std::endl;
cout << "이름 : " << g.fullname << endl;
cout << "핸디캡 : " << g.handicap << endl;
}
// golf_main.cpp
#include <iostream>
#include "golf.h"
int main(void)
{
golf arr[4];
int i;
for (i = 0; i < 3; i++)
{
if (setgolf(arr[i]) == 0)
break;
}
if (i != 3)
setgolf(arr[i], "abcde", 10);
handicap(arr[0], 100);
for (int j = 0; j <= i; j++)
showgolf(arr[j]);
return 0;
}
02
#include <iostream>
#include <string>
void strcount(std::string & str);
int main()
{
using namespace std;
string input;
char next;
cout << "영문으로 한 행을 입력하십시오:\n";
getline(cin, input);
while (input != "")
{
strcount(input);
cout << "다음 행을 입력하십시오(끝내려면 빈 행을 입력) : \n";
getline(cin, input);
}
cout << "프로그램을 종료합니다.\n";
return 0;
}
void strcount(std::string & str)
{
using namespace std;
static int total = 0;
int count = 0;
cout << "\"" << str << "\"에는 ";
for (int i = 0; str[i]; i++)
{
if (str[i] != ' ')
count++;
}
total += count;
cout << count << "개의 문자가 있습니다.\n";
cout << "지금까지 총 " << total << "개의 문자를 입력하셨습니다. \n";
}
03
#include <iostream>
struct chaff
{
char dross[20];
int slag;
};
const int N = 2;
const int BUF = 512;
char buffer[BUF];
int main()
{
using namespace std;
chaff *arr;
arr = new (buffer) chaff[N];
char temp[20];
for (int i = 0; i < N; i++)
{
cout << "##" << i + 1 << "번째##\n";
cout << "dross 입력 : ";
cin.getline(temp, 19);
strcpy(arr[i].dross, temp);
cout << "slag 입력 : ";
cin >> arr[i].slag;
cin.get();
}
cout << endl;
for (int i = 0; i < N; i++)
{
cout << "##" << i + 1 << "번째##\n";
cout << "dross : " << arr[i].dross << endl;
cout << "slag : " << arr[i].slag << endl;
}
return 0;
}
04
// sales.h
#ifndef SALES_H_
#define SALES_H_
namespace SALES
{
const int QUARTERS = 4;
struct Sales
{
double sales[QUARTERS];
double average;
double max;
double min;
};
void setSales(Sales & s, const double ar[], int n);
void setSales(Sales & s);
void showSales(const Sales & s);
}
#endif
// sales.cpp
#include <iostream>
#include "sales.h"
double cal_mean(const double ar[], int n);
double cal_max(const double ar[], int n);
double cal_min(const double ar[], int n);
void SALES::setSales(Sales & s, const double ar[], int n)
{
int small = n < 4 ? n : 4;
int big = n > 4 ? n : 4;
for (int j = 0; j < big; j++)
{
if (j < small)
s.sales[j] = ar[j];
else
s.sales[j] = 0;
}
s.average = cal_mean(ar, small);
s.max = cal_max(ar, small);
s.min = cal_min(ar, small);
}
void SALES::setSales(Sales & s)
{
using std::cout;
using std::cin;
for (int i = 0; i < 4; i++)
{
cout << i + 1 << "분기 판매액을 입력하세요 : ";
cin >> s.sales[i];
}
s.average = cal_mean(s.sales, 4);
s.max = cal_max(s.sales, 4);
s.min = cal_min(s.sales, 4);
}
void SALES::showSales(const Sales & s)
{
using std::cout;
cout << std::endl;
for (int i = 0; i < 4; i++)
cout << i + 1 << "분기 판매액은 " << s.sales[i] << "$ 입니다.\n";
cout << "평균은 " << s.average << "$ 입니다.\n";
cout << "최대값은 " << s.max << "$ 입니다.\n";
cout << "최소값은" << s.min << "$ 입니다.\n";
}
double cal_mean(const double ar[], int n)
{
double sum = 0;
for (int i = 0; i < n; i++)
sum += ar[i];
return sum / n;
}
double cal_max(const double ar[], int n)
{
double max = 0;
for (int i = 0; i < n; i++)
{
if (max < ar[i])
max = ar[i];
}
return max;
}
double cal_min(const double ar[], int n)
{
double min = INT_MAX;
for (int i = 0; i < n; i++)
{
if (min > ar[i])
min = ar[i];
}
return min;
}
// sales_main.cpp
#include <iostream>
#include "sales.h"
int main(void)
{
SALES::Sales arr[2];
double ar[3] = {1.1, 2.2, 3.3};
SALES::setSales(arr[0], ar, 3);
SALES::setSales(arr[1]);
SALES::showSales(arr[0]);
SALES::showSales(arr[1]);
return 0;
}
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