Samsung

300+ posts

Last Updated: 15 November 2024

Given an array of coins[] of size n and a target value sum, where coins[i] represent the coins of different denominations. You have an infin ...read more

Amazon

Morgan Stanley

Oracle

Samsung

Factorial of a Number

Last Updated: 13 November 2024

Given the number n (n =0), find its factorial. Factorial of n is defined as 1 x 2 x ... x n. For n = 0, factorial is 1. We are going to disc...read more

Basic Coding Problems

Queue - Linked List Implementation

Last Updated: 12 December 2024

In this article, the Linked List implementation of the queue data structure is discussed and implemented. Print '-1' if the queue is empty.A ...read more

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Detect cycle in an undirected graph

Last Updated: 09 August 2024

Given an undirected graph, The task is to check if there is a cycle in the given graph.Examples:Input: V = 4, E = 4 Output: Yes Explanation...read more

Counting Sort - Data Structures and Algorithms Tutorials

Last Updated: 06 August 2024

What is Counting Sort?Counting Sort is a non-comparison-based sorting algorithm. It is particularly efficient when the range of input values...read more

Longest Palindromic Substring

Last Updated: 01 September 2024

Given a string str, the task is to find the longest substring which is a palindrome. If there are multiple answers, then return the first ap...read more

Floyd Warshall Algorithm

Last Updated: 06 December 2024

The Floyd-Warshall algorithm, named after its creators Robert Floyd and Stephen Warshall, is a fundamental algorithm in computer science and...read more

Coin Change - Count Ways to Make Sum

Last Updated: 07 January 2025

Given an integerarray of coins[] of size nrepresenting different types of denominations and an integer sum, the task is to count all combina...read more

Next Greater Element (NGE) for every element in given Array

Last Updated: 06 January 2025

Given an arrayarr[]of integers, the task is to find the Next Greater Element for each element of the array in order of their appearance in t...read more

Merge two sorted linked lists

Last Updated: 23 December 2024

Given two sorted linked lists consisting of n and mnodes respectively. The task is to merge both of the lists and return the head of the mer...read more

Count set bits in an integer

Last Updated: 11 April 2023

Write an efficient program to count the number of 1s in the binary representation of an integer.Examples :Input : n = 6Output : 2Binary repr...read more

Search in a Sorted and Rotated Array

Last Updated: 07 December 2024

Given a sorted and rotated array arr[] of n distinct elements, the task is to find the index of given key in the array. If the key is not pr...read more

Detect loop or cycle in a linked list

Last Updated: 28 December 2024

Given a singly linked list, check if the linked list has a loop (cycle) or not. A loop means that the last node of the linked list is connec...read more

Tortoise-Hare-Approach

DSA

Find Middle of the Linked List

Last Updated: 04 September 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

Find the Missing Number

Last Updated: 28 November 2024

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 ...read more

limited-range-elements

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