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Introduction to Stack

Introduction to Queue:

  • A stack is a linear data structure in computer science that follows the Last-In-First-Out (LIFO) principle. It is a data structure in which the insertion and removal of elements can only be performed at one end, which is called the top of the stack.
  • In a stack, elements are pushed onto the top of the stack, and elements are popped off from the top of the stack. The last element that is pushed onto the stack is the first one to be popped off, hence it implies the LIFO principle. 

The stack operations can be summarized as follows:

  • push: Add an element to the top of the stack
  • pop: Remove the element from the top of the stack
  • top: Get the value of the element at the top of the stack
  • empty: Check if the stack is empty

A stack can be implemented using an array, a linked list, or a dynamic array (such as a vector in C++ or ArrayList in Java). In programming, stacks are used to implement recursive algorithms, undo/redo functionality, expression evaluation, and more.

Most efficient way to implement Stack and Queue together

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Introduction to Stack:

A stack is a linear data structure in computer science that follows the Last-In-First-Out (LIFO) principle. It is a data structure in which the insertion and removal of elements can only be performed at one end, which is called the top of the stack. In a stack, elements are pushed onto the top of the stack, and elements are popped off from the top of the stack. The last element that is pushed onto the stack is the first one to be popped off, hence it implies the LIFO principle....

Introduction to Queue:

A queue is a linear data structure in computer science that follows the First-In-First-Out (FIFO) principle in which the insertion of elements is done at the rear (tail) end and the removal of elements is done at the front (head) end. In a queue, the element that is inserted first is the first one to be removed, hence it implies the FIFO principle....

Different Ways to implement Stack and Queue together:

There are several ways to implement a data structure that combines both a stack and a queue:...

Most efficient ways to implement a Stack and Queue:

1) Using Double-Ended Queue:...

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#Arrays #DSA #Queue #Stack #Arrays #Queue #Stack

Introduction to Queue: