Learn/C++/C++ Advanced/Move Semantics Under the Hood/Checkpoint: Move Mechanics/Move GauntletMove GauntletChallenge on lesson: Checkpoint: Move MechanicsInstructionsCodeOutputImplement a forwarding factory and an NRVO builder so the counters prove zero accidental copies.Difficulty: advancedSubmitPress Submit to check your solution.Back to lesson: Checkpoint: Move Mechanics