/*
#include <iostream>
using namespace std;
int main()
{
cout << "Hello world!" << endl;
return 0;
}
*/
/*
#include<iostream>
using namespace std;
int main()
{
cout.put('H');
cout.put('i');
cout.put(33);
cout.put('\n');
cout.put('C').put('+').put('+').put(' ');
char str[] = "I love programming";
cout.write(str,10);
}
*/
/*
#include<iostream>
using namespace std;
void get1()
{
cout << "cin.get()로 <ENTER>키까지 입력받고 출력합니다>>";
int ch;
while((ch = cin.get()) != EOF)
{
cout.put(ch);
if(ch == '\n')
break;
}
}
void get2()
{
cout << "cin.get(char&)로 <ENTER> 키까지 입력받고 출력합니다>>";
char ch;
while(true)
{
cin.get(ch);
if(cin.eof()) break;
cout.put(ch);
if(ch == '\n')
break;
}
}
int main()
{
get1();
get2();
}
*/
/*
#include<iostream>
#include<cstring>
using namespace std;
int main()
{
char cmd[80];
cout << "cin.get(char*, int)로 문자열을 읽습니다." << endl;
while(true)
{
cout << "종료하려면 exit을 입력하세요 >>";
cin.get(cmd, 80);
if(strcmp(cmd, "exit") == 0)
{
cout << "프로그램을 종료합니다...";
return 0;
}
else
cin.ignore(1);
}
}
*/
/*
#include<iostream>
#include<cstring>
using namespace std;
int main()
{
char line[80];
cout << "cin.getline() 함수로 라인을 읽습니다." << endl;
cout << "exit을 입력하면 루프가 끝납니다." << endl;
int no = 1;
while(true)
{
cout << "라인" << no << ">>";
cin.getline(line,80);
if(strcmp(line, "exit") == 0)
{
break;
}
cout << "echo -->";
cout << line << endl;
no++;
}
}
*/
/*
#include<iostream>
using namespace std;
int main()
{
cout << 30 << endl;
cout.unsetf(ios::dec);
cout.setf(ios::hex);
cout << 30 << endl;
cout.setf(ios::showbase);
cout << 30 << endl;
cout.setf(ios::uppercase);
cout << 30 << endl;
cout.setf(ios::dec| ios:: showpoint);
cout << 23.5 << endl;
cout.setf(ios::scientific);
cout << 23.5 << endl;
cout.setf(ios::showpos);
cout << 23.5 << endl;
}
*/
/*
#include<iostream>
using namespace std;
void showWidth()
{
cout.width(10);
cout << "Hello" << endl;
cout.width(5);
cout << 12 << endl;
cout << "%";
cout.width(10);
cout << "Korea";
}
int main()
{
showWidth();
cout << endl;
cout.fill('&');
showWidth();
cout << endl;
cout.precision(5);
cout << 11./3. << endl;
}
*/
/*
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
cout << showbase;
cout << setw(8) << "Number";
cout << setw(10) << "Octal";
cout << setw(10) << "Hexa" << endl;
for(int i=0;i<50;i+=5)
{
cout << setw(8) << setfill('.') << dec << i;
cout << setw(10) << setfill(' ') << oct << i;
cout << setw(10) << setfill(' ') << hex << i << endl;
}
}
*/
#include<iostream>
using namespace std;
class Point{
int x, y;
public:
Point(int x=0, int y=0)
{
this-> x = x;
this-> y = y;
}
friend ostream& operator << (ostream& stream, Point a);
};
ostream& operator << (ostream& stream, Point a)
{
stream << "(" << a.x << "," << a.y << ")";
return stream;
}
int main()
{
Point p(3,4);
cout << p << endl;
Point q(1,100), r(2, 200);
cout << q << r << endl;
}