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Describe queue?
Ans: It is a type of data structure in which the data are stored in and retrieved on a First in first out (FIFO) basis. It grows in the direction of increasing addresses in the memory. New data are added at the back of the queue (High-address end) and retrieved from the front (low-address end) of the queue.
Illustrate difference between Stack and Queue?
STACK: One end of stack is remain fixed ( the bottom) whereas the other end rises and falls as data are popped and pushed Single Pointer is required to point to the top of the stack
QUEUE: Both of the ends of a queue move to higher addresses .2 pointers are required to keep track of the two ends of the queue.
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