Software Engineering Learn to use For loop in Kotlin For loop is a commonly used type of loop that is supported in Kotlin and we will learn about it in this article.
Software Engineering Learn about While and Do While loops in Kotlin While and Do While are two types of loops that are supported in Kotlin and we will learn about them in this article.
Software Engineering Learn about While loop in Python While loop statement in Python programming language repeatedly executes a target statement as long as a given condition is true.
Software Engineering Master the use of Constructors in Java In Java, a constructor is a block of code similar to a method which is used to initialize objects. It is called when an instance of a class is created.
Software Engineering Using CSS to print an HTML webpage nicely You will learn ow to use CSS to make printing a webpage convenient? along with features like adding page break, hiding particular part from printing and others, How to block an user from printing a webpage? and a demonstration to clarify the ideas involved
Problems on Binary Tree Sum of k smallest elements in Binary Search Tree Given a binary search tree and a integer k our task is to find out sum of all the elements which is less or equal to the k th smallest element
Problems on Binary Tree Find k-th smallest element in Binary Search Tree Given root of the tree and k as input, output K th smallest element. We reduce the time complexity from O(N) to O(log N).
Problems on Binary Tree Algorithm to convert Binary Search Tree into Balanced Binary Search Tree In this article, we will explore an algorithm to convert a Binary Search Tree (BST) into a Balanced Binary Search Tree in linear time O(N).
Machine Learning (ML) Data Analysis using Regression In this article, we have clarified the most usually utilized kinds of regressions in information science and its application in data analysis
Machine Learning (ML) Using Histogram of Oriented Gradients (HOG) for Object Detection Principle behind histogram of oriented gradients is that local object appearance and shape within an image can be described by the distribution of intensity gradients or edge directions and hence, can be used for object detection
Machine Learning (ML) Learn about various Object Detection Techniques We will understand what is object detection, why we need to do object detection and the basic idea behind various techniques used to solved this problem. We start with the basic techniques like Viola Jones face detector to some of the advanced techniques like Single Shot Detector.
Software Engineering Creating a Very Simple Web API in Node.JS In this article, we will explore how to build a simple API in Node.JS. We will cover the basics of an API before going into the implementation details.
Software Engineering Work with Routing in Node.js In this article, we will take a look at how routing works in Node.js and set up different routes with combinations of pathname and query to test our idea.
Software Engineering Create a simple Web Server using Node.js In this tutorial, we will a simple web server in Node.js and run it locally on our machine listening to a port. It will response with a text data and HTTP headers.
Software Engineering Introduction to Modules in Node.js In this article, we will go through the three types of modules in Node.js namely in-built, third party and local modules and explore them with examples.
Software Engineering Introduction to Node.js In this article, we will take you through the basic idea of NodeJS and its package manager NPM, Installation guide and a basic example with When to use it
Machine Learning (ML) Build and use an Image Denoising Autoencoder model in Keras In this article, we will see How encoder and decoder part of autoencoder are reverse of each other? and How can we remove noise from image, i.e. Image denoising, using autoencoder? in Keras
Software Engineering Build an HTML form to insert data in a database in PHP MySQLi In this article, we are going to see how a form is made and how the details entered by the user are stored in a database. We will use PHP and MySQL
Problems on Binary Tree Copy a binary tree where each node has a random pointer We explored an algorithm to copy a binary tree with an additional pointer which points to any random node in the tree. We explored two techniques Naive solution using 2 traversals and Efficient solution using hashing.
Algorithms Find Maximum Subarray Sum using divide and conquer We are interested in to find maximum subarray sum (contiguous) of given 1-D array. Array may contain negative and positive numbers which makes this a difficult problem. Brute force will take O(N^2) time while a divide and conquer approach will take O(N log N) time.
Algorithms Converting Postfix to Infix using Stack We have explored an algorithm to convert a Postfix expression to Infix expression using Stack. This takes linear time O(N)
Data Structures Count inversions in an array using Fenwick Tree Fenwick tree is usually used for range query problems but it can be used to solve the problem of finding the number of inversions in an array efficiently.
Data Structures Understanding Fenwick tree (Binary Indexed Tree) with Range product Fenwick tree is a tree based data structure that is widely used to solve range query problems in logarithmic time O(log N) which would otherwise have taken linear time O(N). In this article, we have explained it in depth using the range product query problem.
Software Engineering Start using Local Storage in JavaScript in Browser Local storage is a key value storage such that you can store a data as a set of size 2 such as {key, value}. To get the value back, we need to pass key, then we get back value.
Software Engineering Work with files on the web using FileReader API in JavaScript FileReader object helps in reading data from a file or a Blob and store it in a JavaScript variable. The read is done asynchronously so as not to block the browser.
