www.cs.cmu.edu/~adamchik/15-121/lectures/Stacks and Queues/Stacks and Queues.html
Stacks and Queues. An array is a random access data structure, where each element can be accessed directly and in constant time. A typical illustration of random access is a book - each page of the book can be open independently of others.
Stacks and Queues  Stacks . A stack is a basic data structure that can be logically thought of as a linear structure represented by a real physical stack or pile, a structure where insertion and deletion of items takes place at one end called top of the stack.
Learn the difference between linear data structures stacks and queues. This video is a part of HackerRank's Cracking The Coding Interview Tutorial with Gayle Laakmann McDowell.
Stack and Queue are the very important data structures in programming. Whether you are writing a complex program or preparing for placement or getting into the career, you will come across questions related to the basic difference between stack and queue.
Additionally, the fact that a data structure is provided to you as a stack or as a queue it does not necessarily mean that it is implemented as such, there are instances in which a data structure can be implemented as anything and be provided as a specific data structure simply because it can be made to behave like such.
Stack has only one end open for pushing and popping the data elements on the other hand Queue has both ends open for enqueuing and dequeuing the data elements. Stack and queue are the data structures used for storing data elements and are actually based on some real world equivalent.
Stacks and queues are simple data structures that allow us to store and retrieve data sequentially. In a stack, the last item we enter is the first to come out. In a queue, the first item we enter is the first come out. We can add items to a stack using the push operation and retrieve items using the pop operation.
Basic features of Stack. Stack is an ordered list of similar data type.; Stack is a LIFO(Last in First out) structure or we can say FILO(First in Last out).; push() function is used to insert new elements into the Stack and pop() function is used to remove an element from the stack. Both insertion and removal are allowed at only one end of Stack called Top. ...
In computer science, a queue is a collection in which the entities in the collection are kept in order and the principal (or only) operations on the collection are the addition of entities to the rear terminal position, known as enqueue, and removal of entities from the front terminal position, known as dequeue.This makes the queue a First-In-First-Out (FIFO) data structure.
Queue is an abstract data structure, somewhat similar to Stacks. Unlike stacks, a queue is open at both its ends. One end is always used to insert data (enqueue) and the other is used to remove data (dequeue). Queue follows First-In-First-Out methodology, i.e., the data item stored first will be ...