Suppose you have to develop a program for managing the sales of your Mohallah grocery store. The following functions have been requested by your client (the Dukaan wala):
The program should allow the user to select and buy different items present in that shop.
The user should be able to see the items that he has bought and print his total bill on the screen
The program should not end until the user specifies it to end. (The user should press 'q' to quit the program)
Develop the flowchart for this task and implement it in C.