Cin2Cout_Descending

#include <iostream>
#include <queue>
#include <vector>
using namespace  std;
template <typename T, template <typename> class Comp >
void in2out_desc(istream & it, ostream & os) {
    priority_queue<T, vector<T>, Comp<T> > q{istream_iterator<T>(it), istream_iterator<T>()};
    while(!q.empty()) { os << q.top() << " "; q.pop();}
}
int main()
{
    //in2out_desc<int, greater>(cin, cout);
    in2out_desc<int, less>(cin, cout);
   //priority_queue< int> q{istream_iterator< int>(cin), istream_iterator< int>()};
   //while(!q.empty()) { cout << q.top() << " "; q.pop();}
}