/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 2 What is the common name for an o... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 21: Problem 2

What is the common name for an operation that removes an element from a stack?

Short Answer

Expert verified
Answer: The common name for the operation that removes an element from a stack is "pop."

Step by step solution

01

Understand what a stack is

A stack is a linear data structure that follows a particular order in which operations are performed. The order is based on the Last In First Out (LIFO) principle 鈥� the newest element in the stack should be removed before an older element.
02

Identifying the operation that removes an element from a stack

In a stack, there are two main operations: adding an element (also known as pushing) and removing an element (also known as popping). The operation we are looking for is the one that removes an element from the stack.
03

Provide the common name for the operation

The common name for the operation that removes an element from a stack is "pop."

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Stack in Data Structures
Imagine a stack of plates at a buffet; plates are added to the top and removed from the top as well. In computer science, a stack is analogous to this pile of plates, functioning as a linear data structure where items are added or removed in a particular order, one at a time. The structure is straightforward but powerful, serving as a fundamental building block in algorithm design and memory allocation.

Characteristics of a Stack:
  • It is a linear structure with only one end for all additions and removals.
  • It has a dynamic size, which can grow or shrink as needed.
  • Its simplicity allows for quick and efficient management of data elements.
  • Stacks can be implemented using arrays or linked lists in most programming languages, each with their own advantages.
Understanding stacks is pivotal for grasping more complex data structures and algorithms.
LIFO Principle
At the heart of a stack's functionality lies the Last In, First Out (LIFO) principle. This organizing principle dictates the way elements are retrieved from a stack. Why LIFO? Because the last element added (pushed) to the stack will be the first one to be removed (popped), much like the last plate added to our buffet stack is the first to be taken away.

This behavior is essential in many computing scenarios, such as:
  • Undo functions in software programs.
  • Managing function calls in program execution.
  • Storing temporary variables in memory.
  • Backtracking algorithms, where one must backtrack to the most recent choice before exploring alternative paths.
The LIFO principle is intuitive and mimics many real-world processes, enhancing our ability to design systems that are both efficient and naturally align with human behavior patterns.
Pop Operation
The action of removing an item from a stack is known as a pop operation. Leveraging the LIFO principle, the pop operation targets the most recently added element, which is at the top of the stack. This operation is critical for managing data in stack structures and comes with certain conventions:

  • It decreases the size of the stack by one.
  • The pop operation is simple and typically executes in constant time, making it highly efficient.
  • If attempted on an empty stack, it results in an underflow condition, which needs to be handled appropriately in the code.
  • It often returns the popped element, so it can be used if needed.
Grasping the pop operation equips students to understand a wide variety of algorithms, including those for parsing expressions, navigating back in browsing history, and even in complex recursive algorithms.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

In what order are elements added and removed from a stack?

Cite an example from everyday life where a collection of items behaves like a stack.

Cite an example of a queue from everyday life.

In an array implementation of a queue, why is it necessary to treat the array as a circular buffer?

What is the common name for an operation that adds an element to a queue?
See all solutions

Recommended explanations on Computer Science Textbooks

Algorithms in Computer Science

Read Explanation

Computer Organisation and Architecture

Read Explanation

Functional Programming

Read Explanation

Blockchain Technology

Read Explanation

Data Structures

Read Explanation

Game Design in Computer Science

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.