text: // https://www.codewars.com/kata/5899dc03bc95b1bf1b0000ad/train/cpp
  // My solution
  #include <vector>
  
  std::vector<int> invert(std::vector<int> values)
  {
      std::vector<int> inverted;
      for (int value : values)
          inverted.push_back(-value);
      return inverted;
  }
  // ...
  #include <vector>
  #include <algorithm>
  #include <functional>
  
  std::vector<int> invert(std::vector<int> values)
  {
      transform(values.begin(), values.end(), values.begin(), std::negate<int>());
      ;
      return values;
  }