#include <algorithm>
#include <string>
#include <iostream>

int main()
{
  std::string p = "abcdefghijklmnopqrstuvwxyz";
  std::string q = "aeiou";  

  if (std::includes(begin(p), end(p), begin(q), end(q))
  {
    std::cout << p << " enthält alle Vokale.\n";   
  }
}