Learn/C++/C++ Beginner/STL Algorithms & Lambdas/Checkpoint: STL Algorithms/Data QuestionsData QuestionsChallenge on lesson: Checkpoint: STL AlgorithmsInstructionsCodeOutputGiven std::vector<int> v, implement sorted_desc(v) (new vector, sorted descending), count_above(v, t) (number of elements > t), and sum_of_evens(v) (sum of even elements). Empty input: empty vector / 0 / 0.Difficulty: beginnerSubmitPress Submit to check your solution.Back to lesson: Checkpoint: STL Algorithms