i need code of program in C languange.

Subject : Algorithm and Data structure

Task 1: Application of scheduling process in a phone answering system. System Details: - Tell Tone Sdn. Bhd. is a telecommunication company that has a phone answering system for its service centre. Whenever customers call the customer service center, they will be put in a que they are being served by the customer service representative. If the operators are busy, the are asked to wait and given a certain number. The time that a customer has to wait could be as minute or as long as 30 minutes. This also depends on the types of customer. Platinum custom given a higher priority compared to a Gold customer. Thus, when a call from a Platinum custon it will be processed first. If there are no Platinum customer left in the queue, the system will Gold customer. Demonstrate the scheduling process of a switch in a phone answering system by using queue. Construct a program to demonstrate the problem. Calculate the average waiting time for each call