#include <cstdio>
#include <cassert>
#include <algorithm>

using namespace std;

struct A { int x, y; };

int cnt1 = 0;
int cnt2 = 0;

struct ALess
{
  ALess()
  {
    //assert(++cnt1 <= 1);
    printf("ALess #%d created\n", ++cnt1);
  }

  bool operator() ( A u, A v ){ return u.y < v.y; }

  ~ALess()
  {
    //assert(++cnt2 <= 1);
    printf("ALess #%d destroyed\n", ++cnt1);
  }
};

const int n = 10;
A a[n];

int main()
{
  ALess *x = new ALess();
  sort(a, a + n, *x);
  return 0;
}