Python-Data-Structures

Hash Map in Python

Last Updated: 20 August 2023

Hash maps are indexed data structures. A hash map makes use of a hash function to compute an index with a key into an array of buckets or sl...read more

Max Heap in Python

Last Updated: 25 August 2023

A Max-Heap is a complete binary tree in which the value in each internal node is greater than or equal to the values in the children of that...read more

Heap

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Queue in Python

Last Updated: 21 November 2023

Like a stack, the queue is a linear data structure that stores items in a First In First Out (FIFO) manner. With a queue, the least recently...read more

Stack in Python

Last Updated: 14 March 2024

A stack is a linear data structure that stores items in a Last-In/First-Out (LIFO) or First-In/Last-Out (FILO) manner. In stack, a new eleme...read more

Priority Queue in Python

Last Updated: 29 August 2022

Priority Queues are abstract data structures where each data/value in the queue has a certain priority. For example, In airlines, baggage wi ...read more

Heap queue (or heapq) in Python

Last Updated: 22 March 2023

Heap data structure is mainly used to represent a priority queue. In Python, it is available using the "heapq" module. The property of this ...read more

priority-queue

Deque in Python

Last Updated: 06 March 2023

Deque (Doubly Ended Queue) in Python is implemented using the module "collections". Deque is preferred over a list in the cases where we nee...read more

Python collections-module

deque

Insertion Sort for Singly Linked List

Last Updated: 10 January 2023

We have discussed Insertion Sort for arrays. In this article, we are going to discuss Insertion Sort for a linked list.Below is a simple ins ...read more

Search an element in a Linked List (Iterative and Recursive)

Last Updated: 10 April 2023

Given a linked list and a key 'X' in, the task is to check if X is present in the linked list ornot.Examples:Input: 14-21-11-30-10, X = 14Ou ...read more

Understanding the basics of Linked List

Last Updated: 16 February 2024

Linked List is a linear data structure, in which elements are not stored at a contiguous location, rather they are linked using pointers. Li...read more

Write a function to delete a Linked List

Last Updated: 23 February 2024

Algorithm For C/C++: Iterate through the linked list and delete all the nodes one by one. The main point here is not to access the next of t ...read more

Linked Lists

Delete a Linked List

Program for Nth node from the end of a Linked List

Last Updated: 02 April 2024

Given a Linked List and a number N, write a function that returns the value at the Nth node from the end of the Linked List. Examples:Input:...read more

Find Middle of the Linked List

Last Updated: 23 April 2024

Given a Singly Linked List, the task is to find the middle of the linked list. If the number of nodes are even, then there would be two midd...read more

Write a function to get Nth node in a Linked List

Last Updated: 10 January 2023

Write a GetNth() function that takes a linked list and an integer index and returns the data value stored in the node at that index position ...read more

GetNth

Linked Lists