std::unordered_set::load_factor

// unordered_set hash table stats
#include <iostream>
#include <unordered_set>

int main ()
{
  std::unordered_set<int> myset;

  std::cout << "size = " << myset.size() << std::endl;
  std::cout << "bucket_count = " << myset.bucket_count() << std::endl;
  std::cout << "load_factor = " << myset.load_factor() << std::endl;
  std::cout << "max_load_factor = " << myset.max_load_factor() << std::endl;

  return 0;
}