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/*

문제 1. Square 클래스와 Rectangle 클래스 상속관계 구현

*/

#include <iostream>

using namespace std;

class Rectangle {

private:

int width;

int height;

public:

Rectangle(int w, int h)

: width(w), height(h) {

}

void ShowAreaInfo() {

cout << "면적: " << width*height << endl;

}

};

class Square : public Rectangle {

public:

Square(int l) : Rectangle(l, l) {

}

};

int main() {

Rectangle rec(4, 3);

rec.ShowAreaInfo();

Square sqr(7);

sqr.ShowAreaInfo();

return 0;

}