面向对象程序设计上机练习四（变量引用）

面向对象程序设计上机练习四（变量引用）

Problem Description

Input

Output

Example Input

88 66

Example Output

88 66
66 88

Author

#include <iostream>

using namespace std;

void chance(int &x, int &y)     //引用形参
{
int t = x;
x = y;
y = t;
}

int main()
{
int x, y;
cin >> x >> y;
cout << x << " " << y << endl;
chance(x, y);
cout << x << " " << y << endl;
return 0;
}