Your friend is trying to write a function that removes all vowels from a string. They write:

std::string removeVowels(std::string text) {
  std::regex vowels("[aiou]");
  std::stringstream result;
  std::regex_replace(std::ostream_iterator<char>(result), text.begin(), text.end(), vowels, "");
  return result.str();
}

However, it seems that it doesn't work? Fix your friend's code so that it actually does remove all vowels.

Examples

removeVowels("candy") ➞ "cndy"

removeVowels("hello") ➞ "hell"
// The "o" is removed, but the "e" is still there!

removeVowels("apple") ➞ "pple"

Notes

All letters will be lowercase.