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Strongly Connected Components

Last Updated: 20 September 2023

A strongly connected component is the component of a directed graph that has a path from every vertex to every other vertex in that component. It can only be used in a dir...read more

Heap Sort - Data Structures and Algorithms Tutorials

Last Updated: 25 July 2023

Heap sort is a comparison-based sorting technique based on Binary Heap data structure. It is similar to the selection sort where we first find the minimum element and plac...read more

Find the number of islands using DFS

Last Updated: 01 August 2023

Given a binary 2D matrix, find the number of islands. A group of connected 1s forms an island. For example, the below matrix contains 4 islands.Example:Input: mat[][] = {{...read more

Streamoid Technologies

DFS

graph-connectivity

DSA

Longest Palindromic Substring

Last Updated: 21 September 2023

Given a string str, the task is to find the longest substring which is a palindrome.Examples:Input: str = "forgeeksskeegfor"Output: "geeksskeeg"Explanation: There are seve...read more

Find Subarray with given sum | Set 1 (Non-negative Numbers)

Last Updated: 24 August 2023

Given an array arr[] of non-negative integers and an integer sum, find a subarray that adds to a given sum.Note:There may be more than one subarray with sum as the given s ...read more

Activity Selection Problem | Greedy Algo-1

Last Updated: 17 August 2023

Greedy is an algorithmic paradigm that builds up a solution piece by piece, always choosing the next piece that offers the most obvious and immediate benefit. Greedy algor...read more

Amazon

Activity Selection Problem

Last Updated: 31 July 2023

Prerequisites: Introduction to Knapsack Problem, its Types and How to solve themGiven N items where each item has some weight and profit associated with it and also given ...read more

N Queen Problem | Backtracking-3

Last Updated: 09 May 2023

We have discussed Knight’s tour and Rat in a Maze problem earlier as examples of Backtracking problems. Let us discuss N Queen as another example problem that can be solve...read more

Last Updated: 12 January 2023

We have discussed Backtracking and Knight's tour problem in Set 1. Let us discuss Rat in a Maze as another example problem that can be solved using Backtracking.A Maze is ...read more

Write a function to get the intersection point of two Linked Lists

Last Updated: 10 April 2023

There are two singly linked lists in a system. By some programming error, the end node of one of the linked lists got linked to the second list, forming an inverted Y-shap...read more

Find the Missing Number

Last Updated: 25 April 2023

Given an array arr[] of size N-1 with integers in the range of [1, N], the task is to find the missing number from the first N integers.Note: There are no duplicates in th ...read more

limited-range-elements

DSA

Largest Sum Contiguous Subarray (Kadane's Algorithm)

Last Updated: 22 August 2023

Given an array arr[] of size N. The task is to find the sum of the contiguous subarray within a arr[] with the largest sum.Recommended PracticeSave Your LifeTry It!The ide...read more

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