Exercise 6.1: Write a menu driven program to perform different operations with queue such a Enqueue (), Dequeue() and DisplayQueue(). Exercise 6.2: In this Exercise, you have to take a single string as input. Using this input string, you have to create multiple queues in which each queue will comprise of separate word appeared in input string. At the end, you will again concatenate all queues to a single queue. Example: String = "Data Structure and Algo" Q1 = Data Q2 =S e Q3 = and Q4 = A +1+go At the end concatenate all queues and display them. Q1 Q2 Q3 Q4 Exercise 4.3: Write a program to demonstrate a printer queue in which jobs for printing are added on the basis of priority. Each printing job should have name (e.g. A, B, C, D ...) and priority value (e.g. 1=High, 2=Medium, 3=Low). If two jobs has same priority then FIFO rule should be applied. front A A C rear 1 No 2 3