Given a grid mat[][] of size M * N, consisting of only 0s, 1s, and 2s, where 0 represents empty place, 1 represents a person… Read More

All Hard Articles

An abstract class is a class declared with an abstract keyword. Properties of an abstract class: An abstract can have an abstract and non-abstract method.… Read More

Given an array arr[] consisting of N integers and an integer K, the task is to count the number of subsequences of the given array… Read More

In Java, a Pagoda is a priority queue enforced with a modification of a binary tree. The binary tree is constrained to have priority queue… Read More

Given n electric components and m electric wires to connect them where each wire has a length. Find the optimized wire length between the two… Read More

Shor’s Factorization Algorithm: Shor’s Factorization Algorithm is proposed by Peter Shor. It suggests that quantum mechanics allows the factorization to be performed in polynomial time,… Read More

Given a Binary Tree and an integer target, denoting the value of a node, the task is to find the sum of distances of all… Read More

Given two Binary trees and two integer keys K1, K2 where both K1, K2 can be present in the same tree or in different trees.… Read More

In this article, we will learn how to draw lines using the keyboard (arrow keys) in the turtle graphics. Let’s first discuss some methods used… Read More

Given a string S of length N, the task is to find the smallest balanced substring in S. If no such substring is present, print… Read More

Given a positive integer N, the task is to construct an array of length N and find the maximize the value at index K such… Read More

In this article, we will learn how to draw lines at any position which is clicked by the mouse using a turtle module. Turtle graphics: … Read More

In this article, we will be explaining the steps and various logic required in making of the famous Pig Game, which is a virtual dice… Read More

React Developer Tools: React Developer Tools is a Chrome DevTools extension for the React JavaScript library. A very useful tool, if you are working on… Read More

Given a file reference, find the number of lines in this file using PHP. There are a total of 3 approaches to solve this. test.txt:… Read More

In this article, we are going to learn how to draw the shape of a Diamond using turtle graphics in Python. Turtle graphics: forward(length): moves… Read More

In order to learn about Backpropagation, we first have to understand the architecture of the neural network and then the learning process in ANN. So,… Read More

What is PCA? The main guiding principle for Principal Component Analysis is FEATURE EXTRACTION i.e. “Features of a data set should be less as well… Read More

Online Assessment Test: The round consisted of four sections. Debugging (time constraint): There were 7 questions to be debugged. Coding Section (time constraint): There were… Read More

Resume Shortlisting: This round was very integral as many people were rejected in this round because their profile didn’t resonate with what the company was… Read More