7/1/2023 0 Comments C file peek cHandling of interrupts in real-time systems.For example: IO Buffers, pipes, file IO, etc When data is transferred asynchronously between two processes.The queue is used for synchronization.If you use pop(N) in python code, then the complexity might be O(n) depending on the position of the item to be popped. The complexity of enqueue and dequeue operations in a queue using an array is O(1). This is implemented by a modified queue called the circular queue. Limitation of a queueĪnd we can only add indexes 0 and 1 only when the queue is reset (when all the elements have been dequeued).Īfter REAR reaches the last index, if we can store extra elements in the empty spaces (0 and 1), we can make use of the empty spaces. 1Īs you can see in the image below, after a bit of enqueuing and dequeuing, the size of the queue has been reduced. deQueue removes element entered first i.e. 6th element can't be added to because the queue is full deQueue is not possible on empty queue * Function to display elements of Queue */ } /* Q has only one element, so we reset the queue after deleting it. Queue Implementations in Python, Java, C, and C++ for the last element, reset the values of FRONT and REAR to -1.add the new element in the position pointed to by REAR.for the first element, set the value of FRONT to 0.
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