All Medium Articles

Black box testing – Software Engineering

Black box testing is a testing technique in which the internal workings of the software are not known to the tester. The tester only focuses… Read More

Software Testing

Manual Testing

Software Engineering

Software Testing

Basic Concept of Classification (Data Mining)

Data Mining: Data mining in general terms means mining or digging deep into data that is in different forms to gain patterns, and to gain… Read More

data mining

Computer Subject

Machine Learning

Comparing dates in Python

Comparing dates is quite easy in Python. Dates can be easily compared using comparison operators (like <, >, <=, >=, != etc.). Let’s see how… Read More

date-time-program

python-modules

Python

C program to write an image in PGM format

PGM stands for Portable Gray Map. Saving a 2D array in C as images in PNG, JPG or other formats would need a lot of… Read More

C Language

C Programs

Print the longest leaf to leaf path in a Binary tree

C++ // C++ program to print the longest leaf to leaf // path #include <bits/stdc++.h> using namespace std; // Tree node structure used in… Read More

Data Structures

DSA

Tree

vi Editor in Linux

The default editor that comes with the Linux/UNIX operating system is called vi (visual editor). Using vi editor, we can edit an existing file or… Read More

linux-command

Linux-text-processing-commands

Linux-Unix

PHP | $_FILES Array (HTTP File Upload variables)

How does the PHP file handle know some basic information like file-name, file-size, type of the file and a few attributes about the file which… Read More

PHP

Web Technologies

Newton’s Divided Difference Interpolation Formula

Interpolation is an estimation of a value within two known values in a sequence of values. Newton’s divided difference interpolation formula is an interpolation technique… Read More

DSA

Mathematical

MultiMap in Java Guava

Introduction : A Multimap is a general way to associate keys with arbitrarily many values. Guava’s Multimap framework makes it easy to handle a mapping… Read More

Misc

Swiggy Recruitment Process

This article will give you information about the company, its recruitment process, sample questions that have been asked previously, lots of experiences shared by other… Read More

Recruitment Process

Swiggy

Interview Preparation

Misc

Recruitment Process

Java Swing | Simple Calculator

Java Swing is a GUI (graphical user Interface) widget toolkit for Java. Java Swing is a part of Oracle’s Java foundation classes . Java Swing… Read More

java-swing

Java

Merge Sort for Linked Lists in JavaScript

Prerequisite: Merge Sort for Linked Lists Merge sort is often preferred for sorting a linked list. The slow random-access performance of a linked list makes… Read More

DSA

JavaScript

Linked List

Recursion

Sorting

Web Technologies

Segment Tree | Set 2 (Range Maximum Query with Node Update)

Given an array arr[0 . . . n-1]. Find the maximum of elements from index l to r where 0 <= l <= r <=… Read More

array-range-queries

Segment-Tree

Advanced Data Structure

DSA

Servlet Collaboration In Java Using RequestDispatcher and HttpServletResponse

What is Servlet Collaboration? The exchange of information among servlets of a particular Java web application is known as Servlet Collaboration. This enables passing/sharing information… Read More

java-servlet

Java

Carrier Sense Multiple Access (CSMA)

This method was developed to decrease the chances of collisions when two or more stations start sending their signals over the data link layer. Carrier… Read More

Misc

Maximum profit from sale of wines

Given n wines in a row, with integers denoting the cost of each wine respectively. Each year you can sale the first or the last… Read More

DSA

Dynamic Programming

Misc

Walmart Labs Interview Experience | Set 18 (For Experienced)

I’ve 3.4 Years of experience in Java. I got a call from Walmart labs through employee referral. There were 4 rounds. Round 1: 1 Hrs… Read More

Experiences

Interview Experiences

Counting values greater than equal to x after increments

Consider an array of size n with initial 0 values. How many indices will contain a value at least x after performing m range updates?… Read More

Competitive Programming

DSA

Dynamic Programming

Maximum product of indexes of next greater on left and right

Given an array a[1..N]. For each element at position i (1 <= i <= N). Where L(i) is defined as closest index j such that… Read More

Generate n-bit Gray Codes | Set 2

Given a number n, generate bit patterns from 0 to 2^n-1 such that successive patterns differ by one bit. Examples: Input: n=2Output: 00 01 11… Read More

Algorithms

Bit Magic

C++

C++ Programs

DSA

Misc