#include <algorithm>
#include <iostream>
#include <vector>

int main()
{
  std::vector<int> v = { 3, 7, 2, 0, 1, 9, 4, 6, 5, 8 };
	
  std::make_heap(begin(v), end(v));

  for(auto e : v) std::cout << e << " "; std::cout << '\n';
	std::cout << "is_heap? " << std::is_heap(begin(v), end(v)) << '\t';
}