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Longest increasing sequence by the boundary elements of an Array

Given an array arr[] of length N with unique elements, the task is to find the length of the longest increasing subsequence that can be… Read More

LIS

two-pointer-algorithm

Arrays

Competitive Programming

DSA

Greedy

Create an n x n square matrix, where all the sub-matrix have the sum of opposite corner elements as even

Given an integer N. The task is to generate a square matrix of ( n x n ) having the elements ranging from 1 to… Read More

Python matrix-program

Python-Matrix

Python

Print all K digit repeating numbers in a very large number

Given a very large number N in the form of a string and a number K, the task is to print all the K-digit repeating… Read More

cpp-map

cpp-unordered_map

large-numbers

number-digits

subarray

substring

DSA

Hash

Mathematical

Strings

Python Decorators: A Complete Guide

A decorator is a design pattern tool in Python for wrapping code around functions or classes (defined blocks). This design pattern allows a programmer to… Read More

Python Decorators

Python

Three-dimensional Plotting in Python using Matplotlib

3D plots are very important tools for visualizing data that have three dimensions such as data that have two dependent and one independent variable. By… Read More

Python-matplotlib

Python

Minimum number of steps needed to remove the substring K from given string

Given a binary string S, and a substring K, the task is to find the minimum no of steps required to flip the characters in… Read More

substring

Competitive Programming

DSA

Pattern Searching

Strings

Count of subsequences in an array with sum less than or equal to X

Given an integer array arr[] of size N and an integer X, the task is to count the number of subsequences in that array such… Read More

subsequence

Arrays

Competitive Programming

DSA

Dynamic Programming

Order of teams in a tournament such that every team has won against its consecutive team

Given N teams and the results of round-robin tournament in which no match resulted is draw or tie. The task is to find the order… Read More

Permutation and Combination

Algorithms

DSA

Recursion

Check if row-major order path of Matrix is palindrome or not

Given a matrix mat[][], the task is to check if the row-major order path of the matrix is a palindrome or not. Examples: Input: mat[][]… Read More

palindrome

Algorithms

Arrays

Competitive Programming

DSA

Mathematical

Matrix

How to convert a Stream into a Map in Java

Introduced in Java 8, the Stream API is used to process collections of objects. A stream is a sequence of objects that supports various methods… Read More

Java 8

Java-Collectors

java-map

java-stream

Java-Stream-Collectors

Java

Java Programs

Difference between Java Servlet and CGI

The world has changed into a mobile-first era but even today, none of the applications could emerge as effective as the web-based apps. Surfacing on… Read More

CGI

java-servlet

Difference Between

Java

Draw a Chess Board using Graphics Programming in C

Prerequisite: graphics.h, How to include graphics.h in CodeBlocks? In Computer Graphics, we use graphics.h which provide direct functions to draw different coordinate shapes(like circle, rectangle… Read More

c-graphics

chessboard-problems

C Language

Computer Subject

Project

Find K elements whose absolute difference with median of array is maximum

Given an array arr[] and an integer K, the task is to find the K elements of the array whose absolute difference with median of… Read More

median-finding

Algorithms

Arrays

Competitive Programming

Data Structures

DSA

Sorting

Comparison between Lists and Array in Python

Python List Python programming language has four collection data types namely List, Tuple, Set, and Dictionary . A list is a mutable and ordered collection… Read More

Picked

Python list-programs

Python-array

Arrays

Data Structures

Difference Between

DSA

Programming Language

Python

Python Programs

How to create text-fill animation using CSS ?

Text-fill animation on hover is a type of text-animation of modern web design concepts. In this animation, the text is filled with a color different… Read More

CSS-Advanced

CSS

Web Technologies

How to place text on image using HTML and CSS?

Adding text over images is a very common task in web development and developers have been doing it for a long time. Instead of using… Read More

CSS-Misc

HTML-Misc

CSS

HTML

Web Technologies

IndexedDB | Introduction

IndexedDB is a key-value database in the browser. It is a NoSQL Database. It is transactional, i.e. if a particular action falls within a transaction,… Read More

JSON

HTML

JavaScript

JS++

Web Technologies

Parsing form data in express app manually without body-parser

Parsing means accessing the data submitted by user with HTML form. When the form is submitted with the ‘GET’ method, data are appended in ‘query… Read More

Node.js-Misc

Node.js

Web Technologies

CSS conic-gradient() Function

The conic-gradient() function is an inbuilt function in CSS that is used to set a conic gradient as the background image. The conic gradient angle… Read More

CSS-Functions

CSS

Web Technologies

Count of longest possible subarrays with sum not divisible by K

Given an array of integers arr[] and a positive integer K, the task is to find the count of the longest possible subarrays with sum… Read More

divisibility

Number Divisibility

sliding-window

subarray

Arrays

Competitive Programming

DSA

Greedy

Mathematical