don't use vector,list,queue, and array using c++ and use function only

Hospital Billing System Your group are assigned to help a small private hospital and oversee the hospital billing system for their patients. This requires a development of a C++ program that computes a patient's bill for the hospital using user-defined functions. Your program should have the following features: . Patient bill that will calculate the total of patient's charges which includes hospital stay, surgery charges, pharmacy charges and other services charges. Hospital stay that keep track of the number of days spent in the hospital. The group will decide on the hospital's daily rate base on room types and may include food charges as well. Surgery charges for at least five (5) types of surgery. The group will decide on types of surgery performed and their respective rates. Pharmacy charges for at least five (5) types of medication. The group will decide on types of medication and their respective prices. Service charges, for example, X-ray/radiology, laboratory test, physiotherapy. The group will decide on the types, duration/frequency, and their respective prices. Design a menu that allows the hospital admin to enter type of surgery, type of medication and type of services and then check the patient out of the hospital. When the patient checks out, the total charges should be displayed. You program must have the following features: i. Interactive, easy navigation, informative menu and user friendly for users 11. Meaningful comments in the source codes