What is Queue? Where it will be use? what is the use of queue

Queue is a First-In-First-Out (FIFO) data structure. In a FIFO data structure, the first element added to the queue will be the first one to be removed.

Queues provide services in computer science, transport and operations research where various entities such as data, objects, persons, or events are stored and held to be processed later. In these contexts, the queue performs the function of a buffer.

What is Queue? Where it will be use? what is the use of queue

what is the stack where it is used ? what is the use of the stack

The stack is a place in the computer memory where all the variables that are declared and initialized before runtime are stored.

A stack is a last in, first out (LIFO) data structure.

The push operation adds to the top of the stack, hiding any items already on the stack, or initializing the stack if it is empty. The pop operation removes an item from the top of the stack, and returns this value to the caller. A pop either reveals previously concealed items, or results in an empty stack.

Stack is used in

1. Expression evaluation and syntax parsing

Many compilers use a stack Expression evaluation before translating into low level code.

Example (general)

what is the stack where it is used ? what is the use of the stack

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The C Programming Language is a well-known programming book written by Brian Kernighan and Dennis Ritchie, the latter of whom originally designed and implemented the language (as well as co-designed the Unix operating system with which development of the language was closely intertwined). The book was central to the development and popularization of the C programming language and is still widely read and used today. Because the book was co-authored by the original language designer, and because the first edition of the book served for many years as the de facto standard for the language, the book is regarded by many to be the authoritative reference on C

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