题解 | #编写函数实现两数交换（引用方式）#

#include <iostream>
using namespace std;

// write your code here......


int main() {

    int m, n;
    cin >> m;
    cin >> n;
    
    // write your code here......
    int *p, *q;
    p = &m;
    q = &n;
    swap(*p,*q);

    cout << m << " " << n << endl;

    return 0;
}