Question 2: Write the template function Cube which returns 2? (4 points) Question 3: Trace the following code and write the output into the provided space. Answers without intermediate steps will not get any grade. [6 points) Output 1. std::vector v; 2. std::string s; 3. std::fill_n(std::back_inserter(v.begin()), 5, -1); 4. int i = 0; 5. for(auto &val : v) { 6. s += std::to_string(val + i++); 7. ] 8. std::reverse (s.begin(), s.end(); 9. std::cout