All Hard Articles

Count of distinct differences between two maximum elements of every Subarray

Given an array arr[] of size N. The task is to count the number of unique differences between the two maximum elements of every subarray… Read More

Algo-Geek 2021

subarray

Algo Geek

Arrays

DSA

Mathematical

Recursion

Stack

Php Program to Inplace rotate square matrix by 90 degrees | Set 1

Given a square matrix, turn it by 90 degrees in anti-clockwise direction without using any extra space.Examples : Input: Matrix: 1 2 3 4 5… Read More

Amazon

Facebook

Google

Microsoft

Morgan Stanley

rotation

Zoho

Arrays

DSA

Matrix

PHP

PHP Programs

Web Technologies

Minimum hours taken by Zombies to infect all Humans by infecting up, left, down and right only

Given a 2D grid, each cell is either a zombie 1 or human 0. Zombies can turn adjacent horizont or vertical (up/down/left/right) human beings into… Read More

Amazon

BFS

TrueGeek-2021

Arrays

Competitive Programming

DSA

Pattern Searching

Searching

TrueGeek

How to Normalize Data in R?

In this article, we will discuss how to normalize data in the R programming language. What is Normalization? Normalization is a pre-processing stage of any… Read More

Picked

R Language

Prevent duplicated columns when joining two Pandas DataFrames

Column duplication usually occurs when the two data frames have columns with the same name and when the columns are not used in the JOIN… Read More

pandas-dataframe-program

Picked

Python pandas-dataFrame

Python Pandas-exercise

Python-pandas

Python

How to Use setwd and getwd in R?

In this article, we will discuss how to use setwd and getwd in the R programming language. getwd() function getwd() stands forget working directory. It… Read More

Picked

R-Functions

R Language

Maximize sum of products at corresponding indices in two arrays by reversing at most one subarray in first Array

Given two arrays A and B of size N, the task is to maximize the sum of A[i]*B[i] across all values of i from 0… Read More

subarray

Arrays

DSA

Dynamic Programming

Mathematical

AiDash Internship Interview Experience for SDE | Off-Campus 2021

Applied on LinkedIn. After 3-4 days, I received an invitation call for scheduling my Interview. Interview date: 9 Dec 2021 Interview Platform: MS Teams Duration:… Read More

AiDash

Off-Campus

Experiences

Internship

Interview Experiences

Maximum sum subsequence of length K | Set 2

Given an array sequence arr[] i.e [A1, A2 …An] and an integer k, the task is to find the maximum possible sum of increasing subsequence… Read More

subsequence

Arrays

DSA

Greedy

Misc

Searching

Sorting

Texas Instruments Interview Experience (On-Campus)

Texas Instruments visited our campus for full-time roles. They offered 3 roles Digital Engineer Software Engineer Analog Engineer CPI criteria were 7. There were a… Read More

On-Campus

Texas

Experiences

Interview Experiences

C++ Program to Rotate the matrix right by K times

Given a matrix of size N*M, and a number K. We have to rotate the matrix K times to the right side. Examples: Input : N… Read More

rotation

C++

C++ Programs

DSA

Matrix

How Technology Has Influenced the Stock Market?

Technology has completely revolutionized the world we live in. As per the survey, the number of active web users globally is more than 4 billion,… Read More

GBlog

Java Program to Print a given matrix in reverse spiral form

Given a 2D array, print it in reverse spiral form. We have already discussed Print a given matrix in spiral form. This article discusses how… Read More

pattern-printing

spiral

DSA

Java

Java Programs

Matrix

School Programming

Find the Longest Common Subsequence (LCS) in given K permutations

Given K permutations of numbers from 1 to N in a 2D array arr[][]. The task is to find the longest common subsequence of these… Read More

LCS

permutation

Arrays

Combinatorial

DSA

Mathematical

Matrix

Pattern Searching

Implement Dynamic Multi Stack (K stacks) using only one Data Structure

In this article, we will see how to create a data structure that can handle multiple stacks with growable size. The data structure needs to… Read More

Advanced Data Structure

DSA

Stack

Swiggy Interview Experience for SDE-1 | Off-Campus 2021

Swiggy Interview Experience for Software Development Engineer I-Backend role. Current state: I have a 6 months internship experience from Quantiphi. Currently working as a full-time… Read More

Off-Campus

Swiggy

Experiences

Interview Experiences

Gemini Solutions Interview Experience | On-Campus

The criteria decided by the company was 70% in 10th,12th, and B.Tech current semester for giving company written test. Round 1: This was an online… Read More

Gemini

On-Campus

Experiences

Interview Experiences

Juspay Interview Experience

Round 1: It was an online round hosted of Juspay on Talscale. It consisted of 3 coding question. The coding question goes like this: Maximum… Read More

Juspay

Experiences

Interview Experiences

Paytm Interview Experience for SDE-1 | 1.2 Years of Experience

I was contacted by an Interviewer through Instahyre. Round 1(Online Assessment): There were total 34 Questions in the assessment- 1 coding question(restricted to use Java… Read More

Paytm

Experienced

Experiences

Interview Experiences

Tata 1MG Interview Experience for SDE-1 (On-Campus)

This is an On-campus offer. Eligibility Criteria was a minimum of 7 pointer. There were a total of 4 rounds (1 Coding Test+2 Technical Interviews+… Read More

1mg

On-Campus

Experiences

Interview Experiences