#include <iostream>
#include <algorithm>
#include <functional>
using std::cout;
using std::endl;
int main()
{
int arr[] = { 2, 8, 1, 7, 5, 3 };
std::sort(arr, arr + 6, std::greater<int>());
for (int i = 0; i < 6; i++)
cout << arr[i] << ' ';
cout << endl;
return 0;
}
/*
run:
8 7 5 3 2 1
*/