¶
~cpp
#include <iostream>
using namespace std;
void swap(int *n, int *i);
void main()
{
int a, b;
a = 1, b = 18;
cout << a << " " << b << endl;
swap(a, b);
cout << a << " " << b << endl;
}
void swap(int *n, int *i)
{
int m;
m = *n;
*i = *n;
*n = m;
}










