All Hard Articles

How to Install the Windows Subsystem for Linux on Windows 11?

As a programmer, it is very important to test software on multiple platforms. However, it can be very tedious and inefficient to use multiple virtual… Read More

how-to-install

How To

Installation Guide

Recursive Join in SQL

A recursive query is a powerful feature that allows us to query hierarchical data which are used in relational databases. They are a compound operation… Read More

DBMS-Join

Picked

SQL

How to Install Facebook Messenger on Windows?

Facebook Messenger is the most popular and commonly used social media messaging application in the world. Facebook Messenger is another messaging service other than WhatsApp… Read More

how-to-install

How To

Installation Guide

Find given occurrences of Mth most frequent element of Array

Given an array arr[], integer M and an array query[] containing Q queries, the task is to find the query[i]th occurrence of Mth most frequent… Read More

cpp-map

frequency-counting

Arrays

DSA

Greedy

Hash

How to Generate mesh in Python with Gmsh module?

In this article, we will cover how to Generate meshes using Gmsh module in Python. What is Mesh? A connected 2D, 3D, or multi-dimension structure… Read More

Data Visualization

python-modules

Python

How to find the equation of an ellipse given the center and two points?

A conic section can be defined as the set of points that describe the intersection of a right circular cone with a plane. The angle… Read More

Conic Sections - MAQ

Picked

Mathematics

Maths MAQ

School Learning

Minimize refills to reach end of path

Given an integer target which represents the total distance to be covered by a car on a straight road. Given another array, station[] of size… Read More

cpp-priority-queue

Permutation and Combination

Arrays

DSA

Greedy

Sum of nodes within K distance from target

Given a binary tree, a target node and a positive integer K on it, the task is to find the sum of all nodes within… Read More

Binary Tree

DFS

HashTable

DSA

Recursion

Searching

Tree

Flipkart Interview Experience for SDE-1

Total 3 Rounds: Machine Coding Round (120 min)Problem Solving and Data Structures (60 – 90 min)Hiring Manager Round (45 min) Round 1(Machine Coding Round –… Read More

Experiences

Interview Experiences

Different Ways to Initialize an Set in C++

A set is an associative container available in the C++ Standard Template Library(STL) that is used for unique elements in a specific order, it internally… Read More

cpp-set

STL

C++

Melting of Glaciers

The Arctic and Antarctic regions define the North and South poles of earth respectively. The Arctic is a sea region surrounded by land and contains… Read More

Geography

UPSC

Journal Entry (Capital, Drawings, Expenses, Income & Goods)

1. Capital Account: The amount invested in the business whether in the means of cash or kind by the proprietor or owner of the business is… Read More

Accountancy

Commerce

NIELIT Scientist B Syllabus

The National Institute of Electronics and Information Technology (NIELIT) is an autonomous Scientific Society that comes under the hold of the Ministry of Electronics &… Read More

TechTips

Strict Type Checking in C++

Strict type checking means the function prototype(function signature) must be known for each function that is called and the called function must match the function… Read More

C++

C Program to Show a Man Walking in Rain

In Turbo C graphics the graphics.h functions are used to draw different shapes(like a circle, rectangle, etc), and display text(any message) in different formats (different… Read More

computer-graphics

C Language

C Programs

Minimize subtraction of power of 2 to convert N to 0

Given a positive integer N, the task is to find the minimum number of subtractions of power of 2 required to convert N to 0.… Read More

Data Structures

DSA

Heap sort for Linked List

Given a linked list, the task is to sort the linked list using HeapSort. Examples: Input: list = 7 -> 698147078 -> 1123629290 -> 1849873707… Read More

Advanced Data Structure

Algorithms

DSA

Heap

Java

Java Programs

Linked List

Sorting

Hexaware Interview Experience for Premier Graduate Engineer Trainee (2022)

Hello Everyone, Hexaware came to our campus in August 2021 and the process was completed within 1 week. Hexaware offered a PGET profile which means… Read More

Algorithms

Computer Networks

CS - Placements

DBMS

DSA

Experiences

Interview Experiences

QA - Placements

Dell EMC R&D Center Interview Experience for Software Engineer (Off-Campus)

Round 1:Phone screening with the hiring manager. Round 2 (Technical Interview): Basic knowledge of check-in programming, operating system, oops concept, and data structures. Conceptual questions: How… Read More

Experiences

Interview Experiences

For each value in [1, N] find Minimum element present in all Subarray of that size

Given an array A[] of size N, the task is to find the minimum element present in all subarrays for all sizes from 1 to… Read More

Analysis of Algorithms

Competitive Programming

DSA