210928

//////////#include <iostream>

//////////

//////////using namespace std;

//////////

//////////int main()

//////////{

////////// cout << "Hello world!" << endl;

////////// return 0;

//////////}

////////

////////

////////

////////#include <iostream>

////////using namespace std;

////////class Power{

////////int kick;

////////int punch;

////////public:

//////// Power(int kick=0,int punch=0) { this->kick=kick; this->punch=punch; }

//////// void show();

//////// friend Power& operator++(Power& op);

//////// friend Power operator++(Power& op,int x);

////////};

////////void Power::show()

////////{

//////// cout << "kick= " << kick << ',' << "punch= " << punch << endl;

////////}

////////Power& operator++(Power& op)

////////{

//////// op.kick++;

//////// op.punch++;

//////// return op;

////////}

////////Power operator++(Power& op,int x)

////////{

//////// Power tmp = op;

//////// op.kick++;

//////// op.punch++;

//////// return tmp;

////////}

////////int main()

////////{

//////// Power a(3,5),b;

//////// b = ++a;

//////// a.show(); b.show();

////////

//////// b= a++;

//////// a.show(); b.show();

////////}

//////

//////

//////#include <iostream>

//////using namespace std;

//////class Power{

//////int kick;

//////int punch;

//////public:

////// Power(int kick,int punch) { this->kick=kick; this->punch=punch; }

////// void show();

////// Power& operator<<(int n);

//////};

//////void Power::show()

//////{

////// cout << "kick= " << kick << ',' << "punch= " << punch << endl;

//////}

//////Power& Power::operator<<(int n)

//////{

////// kick+=n;

////// punch+=n;

////// return *this;

//////}

//////int main()

//////{

////// Power a(1,2);

////// a << 3 << 5 << 6;

////// a.show();

//////}

//////////////////////////////////////////////////1

////#include <iostream>

////using namespace std;

////class Book{

////string title;

////int price,pages;

////public:

//// Book(string title="",int price=0, int pages=0)

//// {

//// this->title=title; this->price=price; this->pages=pages;

//// }

//// void show()

//// {

//// cout << title << ' ' << price << "원 " << pages << " 페이지 " << endl;

//// }

//// string gettitle() { return title; }

//// Book& operator+=(int price1);

//// Book& operator-=(int price2);

////};

////Book& Book::operator+=(int price1)

////{

//// price+=price1;

//// return *this;

////}

////Book& Book::operator-=(int price2)

////{

//// price-=price2;

//// return *this;

////}

////int main()

////{

//// Book a("청춘",20000,300), b("미래",30000,500);

//// a+=500;

//// b-=500;

//// a.show();

//// b.show();

////}

/////////////////////////////////////////////////3

//#include <iostream>

//using namespace std;

//class book{

//string title;

//

//public:

// int pages,price;

// book(string title="",int pages=0,int price=0)

// {

// this->title=title; this->pages=pages; this->price=price;

// }

// void show()

// {

// cout << title << ' ' << price << "원 " << pages << " 페이지 " << endl;

// }

// string gettitle() { return title; }

//// friend book operator!(s);

//

//};

//

//bool operator!(book &op) {

// cout << &op << endl;

// if(op.price==0)

// return true;

// else

// return false;

//}

//

//int main()

//{

// book Book("벼룩시장",0,50);

// cout << &Book << endl;

// if(!Book) cout << "공짜다 " << endl;

//}

/////////////////////////////////////////////////////////5

//#include <iostream>

//using namespace std;

//class color{

//int r,g,b;

//public:

// color(int r=0, int g=0, int b=0 ) { this->r=r; this->g=g; this->b=b; }

// void show() { cout << r << ' ' << g << ' ' << b << endl; }

// color operator+(color op2);

// bool operator==(color &op);

//};

//color color::operator+(color op2)

//{

// color tmp;

// tmp.r=this->r+op2.r;

// tmp.b=this->b+op2.b;

// tmp.g=this->g+op2.g;

// return tmp;

//}

//bool color::operator==(color &op)

//{

// if(r==op.r&&g==op.g&&b==op.b)

// return true;

// else false;

//}

//int main()

//{

// color red(255,0,0), blue(0,0,255),c;

// c= red+ blue;

// c.show();

// color fuchsia(255,0,255);

// if(c==fuchsia)

// cout << "보라색 맞음";

// else

// cout << "보라색 아님";

//}

#include <iostream>

using namespace std;

class Matrix{

int a1,a2,a3,a4;

public:

Matrix(int a1=0,int a2=0,int a3=0,int a4=0)

{

this->a1=a1; this->a2=a2; this->a3=a3; this->a4=a4;

}

void show();

Matrix& operator<<(Matrix &op,int x1);

Matrix& operator>>(Matrix &op,int y1);

};

void Matrix::show()

{

cout << "Matrix= { " << a1 << ' ' << a2 << ' ' << a3 << ' ' << a4 << ' ' << "}" << endl;

}

Matrix& Matrix::operator<<(Matrix &op,int x1)

{

x1[0]==op.a1;

x1[1]==op.a2;

x1[2]==op.a3;

x1[3]==op.a4;

return *this;

}

Matrix& Matrix::operator>>(Matrix &op,int y1)

{

op.a1=y1[0];

op.a2=y1[1];

op.a3=y1[2];

op.a4=y1[3];

return *this;

}

int main()

{

Matrix a(4,3,2,1),b;

int x[4],y[4] = {1,2,3,4};

a >> x;

b << y;

for(int i=0;i<4; i++)

{

cout << x[i] << ' ';

}

cout << endl;

b.show();

}