题解 | #编写函数实现两数交换（指针方式）#

#include <iostream>
using namespace std;

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

void swap(int* a, int* b);

int main() {

    int m, n;
    cin >> m;
    cin >> n;

    // write your code here......
    swap(m, n);
    

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

    return 0;
}

void swap(int* a, int* b)
{
    *a = *a + *b;
    *b = *a - *b;
    *a = *a + *b;
}