greater

// greater example
#include <iostream>
#include <functional>
#include <algorithm>
using namespace std;

int main () {
  int numbers[]={20,40,50,10,30};
  sort (numbers, numbers+5, greater<int>() );
  for (int i=0; i<5; i++)
    cout << numbers[i] << " ";
  cout << endl;
  return 0;
}