Write a c++ program to manage a simple shopping cart. Use a global variable totalcost (set it to 0 at the beginning and int data type) to store the the cost of items in the cart. Implement void functions to add items with their respective prices to the cart addItemToCart (accept int data type of item price). Test your program by adding items to the cart and print the final total cost. In main: the function is called multiple times. At the end, it prints the total cost