swap values in array c 2b 2b

1#include <algorithm>
2#include <iostream>
3
4using namespace std;
5
6int main()
7{
8     int array[]={1, 2};
9     cout<<array[0]<<" "<<array[1]<<endl;
10     swap(array[0], array[1]);
11     cout<<array[0]<<" "<<array[1];
12     return 0;
13}