All Basic Articles

Count the number of nodes at a given level in a tree using DFS

Given an integer l and a tree represented as an undirected graph rooted at vertex 0. The task is to print the number of nodes… Read More

DFS

Data Structures

DSA

Graph

GATE | GATE CS 2019 | Question 36

Consider the following C program: #include<stdio.h> int r(){ int static num=7; return num--; } int main() { for(r();r();r()) { printf("%d ",r()); };… Read More

GATE

GATE | GATE CS 2019 | Question 14

In 16-bit 2’s complement representation, the decimal number −28 is: (A) 1111 1111 0001 1100 (B) 0000 0000 1110 0100 (C) 1111 1111 1110 0100… Read More

GATE

GATE | GATE CS 2019 | Question 8

In the given diagram, teachers are represented in the triangle, researchers in the circle and administrators in the rectangle. Out of the total number of… Read More

GATE

GATE | GATE CS 2019 | Question 7

“A recent High Court judgement has sought to dispel the idea of begging as a disease – which leads to its stigmatization and criminalization –… Read More

GATE

Modify a binary array to Bitwise AND of all elements as 1

Given an array, a[] consists of only 0 and 1. The task is to check if it is possible to transform the array such that… Read More

binary-string

Bitwise-AND

Arrays

Bit Magic

DSA

C program to check syntax of ‘for’ loop

As defined by C standards, the for loop syntax is: for (initialisation; condition; increment/decrement) ... Syntactically, there should be two semicolons, one opening parenthesis, one… Read More

Compiler Design

Variadic Functions in Go

The function that is called with the varying number of arguments is known as variadic function. Or in other words, a user is allowed to… Read More

Go-Functions

Golang

Go Language

Lex program to count the number of lines, spaces and tabs

Lex is a computer program that generates lexical analyzers and was written by Mike Lesk and Eric Schmidt. Lex reads an input stream specifying the… Read More

Lex program

C Language

Compiler Design

Python | Split string into list of characters

Given a string, write a Python program to split the characters of the given string into a list using Python. In this article, we will… Read More

Python string-programs

python-list

python-string

Python

Python Programs

Edge Computing

Edge Technology aims at making Internet Of Things (IOT) with 100 thousand of sensors in next decade, with the increased usage and manipulation of large… Read More

Computer Networks

Drop rows from the dataframe based on certain condition applied on a column

In this post, we are going to discuss several approaches on how to drop rows from the dataframe based on certain conditions applied to a… Read More

AI-ML-DS With Python

Python pandas-dataFrame

Python-pandas

Pandas

Python

Reader’s View of a GeeksforGeeks webpage

Reader’s View: Reader’s View is a feature that removes all the unnecessary things from the webpage like buttons, ads etc and changes the layout of… Read More

CSS

JavaScript

JQuery

Web Technologies

What does ‘<?=’ short open tag mean in PHP ?

The <php is used to identify the start of a PHP document. In PHP whenever it reads a PHP document, It looks for: <?php ?>… Read More

Picked

PHP

PHP Programs

Web Technologies

Python | Pandas Series.truncate()

Pandas series is a One-dimensional ndarray with axis labels. The labels need not be unique but must be a hashable type. The object supports both… Read More

AI-ML-DS With Python

Python pandas-series-methods

Python-pandas

Pandas

Python

HTML | DOM Input Range Object

The Input Range Object in HTML DOM is used to represent the HTML < input > element with type=”range”. This object is used to access… Read More

HTML-DOM

Picked

HTML

Web Technologies

Difference between scanf() and gets() in C

scanf() It is used to read the input(character, string, numeric data) from the standard input(keyboard). It is used to read the input until it encounters… Read More

c-input-output

C Language

Difference Between

Step by step guide to make your first WordPress Plugin

Plugin in WordPress is a component to add or extend functionality that can be enabled or disabled as required and makes no interference with the… Read More

Picked

PHP

Web Technologies

Wordpress

Find frequency of smallest value in an array

Given an array A of N elements. Find the frequency of the smallest value in the array. Examples: Input : N = 5, arr[] =… Read More

school-programming

Algorithms

Arrays

DSA

Maximize the value of A by replacing some of its digits with digits of B

Given two string A and B which represents two integers, the task is to print the maximized value of A after replacing 0 or more… Read More

Constructive Algorithms

math

Sorting Quiz

Algorithms

DSA

Strings