Front - An element is inserted in the front end.If the queue is empty, it is a condition of the Queue Underflow. An element is removed in the same order as it is inserted. Dequeue - The dequeue is an operation where we remove an element from the queue.If the queue is full, it is a condition of the Queue The time complexity of enqueue is O(1). Enqueue - The enqueue is an operation where we add items to the queue.We can perform the following operations in the Queue. The operating system manages the queue for processing the various processes within a computer. If we are the last in line, we need to wait until all other tasks are completed that ahead of ours. The students want to print their paper the printer will print the first task and second, so on. The next element is inserted from the rear end and removed from the front end.įor example - There are 20 computers in the computer science lab and connected to a single printer. The queue has the two ends front and rear.
It is also known as "first come first severed". The concept of queue is based on the FIFO, which means " First in First Out". What is the Queue?Ī queue is a linear type of data structure used to store the data in a sequentially. In this tutorial, we will discuss the Queue's basic concepts and built-in Queue class and implement it using the Python code.
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