(Sorting) Read a set of numerical scores from the keyboard into an array. The maximum number of grades to be entered is 50, and data entry should be terminated when a negative number is entered. Have your main() function pass the array to another function which sorts and displays the scores in descending order (from highest to lowest). Use pass by reference and the selection sort method. Must be written in C++ and only use the #include using namespace std;

Thank you for your help in advanced!