Deque meaning in DSA Last Updated : 01 Jul, 2025 Summarize Comments Improve Suggest changes Share Like Article Like Report Deque, which stands for Double Ended Queue, is a special type of queue that allows adding and removing elements from both front and rear ends. Characteristics: of Deque:Dynamic size: The size of a deque can change dynamically during the execution of a program.Linear: Elements in a deque are stored linearly and can be accessed in a sequential manner.Double Ended: Elements can be added and removed from both the front and the rear endApplications of Deque:Browser History: A deque can be used to store the history of recently visited web pages.Text Editor: A deque can be used to undo and redo operations in a text editor.Disk Scheduling: A deque can be used to schedule disk requests to improve disk performance.To learn more about applications, please refer to this article.Advantages of Deque:Dynamic Size: The size of a deque can be adjusted dynamically during the execution of a program.Versatility: A deque can be used as both a queue and a stack, making it a versatile data structure.To learn more about advantages, refer to this article.Disadvantages of Deque:Complexity: The implementation of a deque is more complex than that of a queue or a stack.Overhead: The overhead of adding or removing elements from both ends of a deque is greater than that of adding or removing elements from only one end.To learn more about the advantages, refer to this article.What else can you read?Introduction to DequeApplications, Advantages and Disadvantages of DequeDifferent Types of Queue Comment More infoAdvertise with us Next Article Subarray meaning in DSA N nayan_nand Follow Improve Article Tags : Queue DSA Definitions and Meanings deque Practice Tags : DequeQueue Similar Reads Hashing meaning in DSA Hashing is defined as a data distribution technique that transforms given key into a different value using hash function for faster access to data. Characteristics of Hashing:Hashing maps the data object to exactly one memory bucket.It allows uniform distribution of keys across the memory.Uses diffe 2 min read Array Definition & Meaning in DSA An array is a collection of items of same data type stored at contiguous memory locations Array exampleTypes of Arrays:One-dimensional Array: It is the simplest kind of array where all the elements are stored linearly in a single row. Two-dimensional Array: A two-dimensional array is an array with 2 4 min read Graph definition & meaning in DSA A Graph is a non-linear data structure consisting of vertices and edges where two vertices are connected by an edge. Example of GraphProperties of a Graph:Vertices (nodes): The points where edges meet in a graph are known as vertices or nodes. A vertex can represent a physical object, concept, or ab 4 min read Subarray meaning in DSA A subarray is a portion of an array that consists of consecutive elements from the original array. SubarrayCharacteristics of a Subarray:Contiguity: The elements in a subarray are contiguous, meaning they are consecutive and in order in the original array.Length: The length of a subarray can be any 2 min read Operations on Deque A Deque (Double-Ended Queue) is a linear data structure that allows elements to be added or removed from both endsâfront and rear. Unlike a regular queue that adds and removes elements from one end (FIFO) or a stack that works by adding and removing elements from the top (LIFO), a deque allows you t 4 min read Deductive Reasoning in AI Deductive reasoning is a critical thinking skill human, that is integrated into AI systems to enhance AI's decision-making skills. In this article, we are going to understand deductive logic along with examples and how it is integrated into AI systems. Table of Content What is Deductive Reasoning?Ru 7 min read Like