C++ Queues

The C++ Queue is a container adapter that gives the programmer a FIFO (first-in, first- out) data structure.
As you see in the above animation the box which goes in first is getting processed first (ie. first-in, first-out) than others and so own.

Queue Constructor
  • back - return a reference iterator to the last element of a queue
  • empty - returns true(1) if the queue has no element else return false (0)
  • front - returns a reference iterator to the first element of a queue
  • pop - removes the first element from a queue
  • push - adds an element to the end of the queue
  • size - returns the number of the elements in the queue
Below is the implementation of the Queue Constructor.

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