명품 C++ 실습문제 5장 1번

#include <iostream>
#include <string>
#include <cstdlib>
#include <ctime>
using namespace std;

 class Circle{

    int radious;

public:
    Circle(int radious) {this -> radious = radious ;}
    int getradious(){return radious;}

};

 

void swap(Circle &k ,Circle &t);

int main() {
    Circle a(4);
    Circle b(5);
    cout << a.getradious() << b.getradious() << endl;

    swap(a,b);

    cout << a.getradious() << b.getradious() << endl;
    return 0;
}

void swap(Circle &k ,Circle &t){
    Circle tmp(1);
    tmp = k;
    k = t;
    t = tmp;
}