Description: This C++ program manages a list of courses for a Computer Science student's program using a linked list. It allows users to add, delete, and display courses through a menu-type interface.

Program Features: Add 10 Courses: Adds 10 new courses to the list, ensuring it is inserted in order by course code(integers). Delete Course: Deletes a course by specifying its course code. Display Course List: Shows all courses in the list with course codes, credit hours, and grades. Delete Two Courses: Deletes two user-specified courses and displays the updated list. Input Validation: Ensures the course code is a 3-digit number, credit hours are between 1 and 5, and the grade is a single character.