what is queue? explain with example.
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A queue is an ordered list in which insertion is done at one end called REAR and deletion at another end called FRONT . The first inserted element is available first for the operations to be performed and is the first one to be deleted. Hence, it is known as First In First Out, FIFO , or Last In Last Out, LILO .
The ticket queue outside a cinema hall is a real-world example of a queue, where the person who enters first gets the ticket first, and the person who enters last gets the last ticket.