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Data Structures

Distance, Diameter, Eccentricity, Radius and Center of a Graph

A graph is defined as a set of Vertices and lines joining these vertices known as Edges.  Today we will learn about various properties...

HeapSort Algorithm Tutorial and Implementation

HeapSort is an efficient (O(N*lognN) time) comparison-based sorting algorithm based on Binary Heaps. It works by dividing input unsorted array into the sorted and...

Build Heap and Heapify Operation [Tutorial]

Build Heap is a process of building a Heap from a given element generally in an array format. The resulting heap will be either...

Binary Heap Data Structure [Introduction]

A Binary Heap is a form of Binary Tree with the following additional properties - A Binary Heap is a complete Binary tree with...

Check if a Binary Tree is a Binary Search Tree

Given a Binary Tree, we have to validate whether it is a valid Binary Search Tree(BST) or not. Print true, if given Binary Tree...

Sieve of Eratosthenes

Sieve of Eratosthenes is an algorithm to find all prime numbers up to a given range. This concept is very important when it comes...

AVL Tree Deletion Tutorial

AVL tree is a height-balanced Binary Search Tree(BST) with best and worst-case height as O(log N). In AVL tree the difference of height of...

AVL Tree Insertion Tutorial

AVL tree is a height-balanced Binary Search Tree(BST) with best and worst-case height as O(log N). In AVL tree the difference of height of...

Introduction to AVL Tree and its properties

AVL tree(Adelson-Velsky and Landis tree named after it's inventor) is a height-balanced Binary Search Tree such that the difference between the height of a...

NlogN time sorting algorithms

In this post, we are going to discuss all the sorting algorithms with either the best case or worst case or average-case time complexity...

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