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Class 9 NCERT Solutions – Chapter 4 Linear Equations in two variables – Exercise 4.1

Question 1. The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement.… Read More

NCERT Solutions Class-9

Picked

Class 9

Mathematics

NCERT

School Learning

Sum of first N natural numbers with alternate signs

Given an integer N, the task is to find the sum of first N natural numbers with alternate signs, i.e 1 – 2 + 3… Read More

Natural Numbers

DSA

Mathematical

School Programming

Numbers formed by flipping common set bits in two given integers

Given two positive integers A and B, the task is to flip the common set bitsin A and B. Examples: Input: A = 7, B… Read More

Bit Algorithms

Bitwise-XOR

Bit Magic

DSA

Mathematical

Pattern Searching

Probability of collision between two trucks

Given two strings S and T, where S represents the first lane in which vehicles move from left to right and T represents the second… Read More

Amazon

interview-preparation

Probability

DSA

Mathematical

Strings

Generate Bitonic Sequence of length N from integers in a given range

Given integers N, L and R, the task is to generate a Bitonic Sequence of length N from the integers in the range [L, R]… Read More

Amazon

bitonic

deque

interview-preparation

Arrays

DSA

Greedy

Mathematical

Count substrings of same length differing by a single character from two given strings

Given two strings S and T of length N and M respectively, the task is to count the number of ways of obtaining same-length substring… Read More

substring

DSA

Greedy

Strings

Relational Database from CSV Files in C

In C programming, using arrays and string for data storage at run time which is volatile and gets memory in RAM. But to store data… Read More

C-File Handling

CSV

File Handling

Advanced Data Structure

Articles

C Language

C Programs

DSA

Project

Amazon Interview Experience for 6 months Intern (On-Campus)

Amazon conducted 3 rounds. Round 1: An online assessment that consisted of 4 sections. Code Debug(20 mins): It consisted of 6 questions. (Cakewalk) Work Style… Read More

Amazon

On-Campus

Experiences

Internship

Interview Experiences

Paytm Interview Experience for Software Engineer

The process consisted of 4 rounds: Online Test Technical Interview I Technical Interview II Technical + HR Online Test (70 min): This test had 3… Read More

Paytm

Experiences

Interview Experiences

Top 10 Natural Language Programming Libraries

You can surely understand me if I say something! But what about a computer? Can it understand what I am saying? Normally the answer is… Read More

GBlog

Machine Learning

Western Digital Corporation Interview Experience for FTE+Intern (Virtual Hiring)

Round 1 (Online Round): It was an Online Aptitude Test on the Codility platform of 45 mins. There were 5 sections namely 1) Aptitude, 2)… Read More

Western Digital

Experiences

Internship

Interview Experiences

Cerner Interview Experience | On-Campus 2020 (Virtual)

The Hiring process of Cerner consisted of 4 rounds and the eligibility criteria was a minimum CGPA of 8.0, and they offered the role of… Read More

Cerner

On-Campus

Experiences

Interview Experiences

Arista Networks Interview Experience for FTE (On-Campus)

Recently Arista Networks visited our campus. Min CGPA requirement was 8. There was an online coding test followed by 3 FTF interviews on G-meet. Round… Read More

Arista Networks

On-Campus

Experiences

Interview Experiences

ARM Interview Experience for Intern (On-Campus Virtual 2020)

ARM talent acquisition team visited our campus virtually for an intern role in the verification domain. There were totally 3 rounds, Round 1 (Written Test)… Read More

ARM

Marketing

On-Campus

C Language

C++

Computer Organization & Architecture

Digital Logic

Experiences

Interview Experiences

Operating Systems

Amazon AWS Interview Experience for Cloud Support Associate

“During our hiring meetings, we ask people to consider three questions before making a decision… Will you admire this person?… Will this person raise the… Read More

Amazon

Experiences

Interview Experiences

Number of Longest Increasing Subsequences

Given an array arr[] of size N, the task is to count the number of longest increasing subsequences present in the given array. Examples: Input:… Read More

LIS

Memoization

subsequence

Arrays

DSA

Dynamic Programming

Recursion

Scraping Amazon Product Information using Beautiful Soup

Web scraping is a data extraction method used to exclusively gather data from websites. It is widely used for Data mining or collecting valuable insights… Read More

Python web-scraping-exercises

Web-scraping

Python

Append digits to the end of duplicate strings to make all strings in an array unique

Given an array arr[] consisting of N strings, the task is to modify the array by replacing the duplicate strings by appending any number such… Read More

cpp-unordered_map

frequency-counting

HashTable

Technical Scripter 2020

Arrays

C/C++ Puzzles

DSA

Hash

Searching

Strings

Technical Scripter

Java Program to Sort the Elements of an Array in Ascending Order

Problem statement: Sort the given array in ascending order such that elements will be arranged from smallest to largest. Consider an illustration below: Let the… Read More

Java-Array-Programs

Picked

Java

Java Programs

How to Display an OpenCV image in Python with Matplotlib?

The OpenCV module is an open-source computer vision and machine learning software library. It is a huge open-source library for computer vision, machine learning, and… Read More

OpenCV

Python-matplotlib

Python-OpenCV

Technical Scripter 2020

Python

Technical Scripter