M. Replace MinMax

//M. Replace MinMax
#include <iostream>
using namespace std;
int arr[1005];
int main ()
{
    int n, mx{0}, mn{0};
    cin >> n;

    for (int i = 0; i < n; i++)
    {
        cin >> arr[i];
    }
    for (int i = 0; i < n; i++)
    {
        if (arr[mn] > arr[i])
        {
            mn =i;
        }
        if (arr[mx] < arr[i])
        {
            mx = i;
        }
    }
    swap(arr[mn], arr[mx]);
    for (int i = 0; i < n; i++)
    {
        cout << arr[i] << " ";
    }
    return 0;
}