All Medium Articles

Minimum number of towers required such that every house is in the range of at least one tower

Given a map of the city and the network range, the task is to determine the minimum number of the tower so that every house… Read More

Arrays

DSA

Asynchronous Transfer Mode (ATM) in Computer Network

Why ATM networks? Driven by the integration of services and performance requirements of both telephony and data networking: “broadband integrated service vision” (B-ISON). Telephone networks… Read More

Computer Networks

Technical Scripter

How to remove error Call to undefined function curl_init()?

Problem: Call to undefined function curl_init()? Solution: This error occurs when cURL library is not installed on your system or enabled in your PHP installation.… Read More

Picked

Technical Scripter 2018

PHP

Technical Scripter

Web Technologies

Maximum number of fixed points using atmost 1 swap

Given a permutation of N elements (Elements are in range 0 to N-1). A fixed point is an index at which the value is same… Read More

array-rearrange

limited-range-elements

Arrays

DSA

Maximum difference elements that can added to a set

Given a set containing N elements, you are allowed to add an element Z > 0 to this set only if it can be represented… Read More

GCD-LCM

DSA

Mathematical

K- Fibonacci series

Given integers ‘K’ and ‘N’, the task is to find the Nth term of the K-Fibonacci series. In K – Fibonacci series, the first ‘K’… Read More

Fibonacci

Competitive Programming

DSA

Dynamic Programming

Sub-strings of length K containing same character

Given a string ‘str’ and an integer ‘k’, the task is to count the number of sub-strings of length ‘k’ which are comprised of the… Read More

sliding-window

substring

Competitive Programming

DSA

Strings

Rotate the sub-list of a linked list from position M to N to the right by K places

Given a linked list and two positions ‘m’ and ‘n’. The task is to rotate the sublist from position m to n, to the right… Read More

DSA

Linked List

Technical Scripter

Minimum swaps required to convert one binary string to another

Given two binary string M and N of equal length, the task is to find a minimum number of operations (swaps) required to convert string… Read More

binary-string

Bit Magic

DSA

Strings

Technical Scripter

Count number of integers less than or equal to N which has exactly 9 divisors

Given a number N(1<=N<=109), the task is to find the total number of integers less than equal to n which have exactly 9 divisors. Examples: … Read More

Directi

divisors

Prime Number

prime-factor

sieve

Technical Scripter 2018

Competitive Programming

DSA

Mathematical

First triangular number whose number of divisors exceeds N

Given a number N, find the first triangular number whose number of divisors exceeds N. Triangular numbers are sums of natural numbers, i. e., of… Read More

divisors

Prime Number

triangular-number

Competitive Programming

DSA

TCS Interview experience – Off campus drive via NQT

I had written the National qualifier test(NQT) conducted on 2nd September 2018 and I got a mail saying I had qualified the test. Later, I… Read More

Misc

Count minimum frequency elements in a linked list

Given a linked list containing duplicate elements. The task is to find the count of all minimum occurring elements in the given linked list. That… Read More

frequency-counting

DSA

Hash

Linked List

ROTATE Instructions in 8085

ROTATE is a logical operation of the 8085 microprocessor. It is a 1-byte instruction. This instruction does not require any operand after the opcode. It… Read More

microprocessor

Computer Organization & Architecture

GATE CS

Check if the characters of a given string are in alphabetical order

Given a string ‘s’, the task is to find if the characters of the string are in alphabetical order. The string contains only lowercase characters. … Read More

Competitive Programming

DSA

Sorting

Strings

numpy.add() in Python

NumPy, the Python powerhouse for scientific computing, provides an array of tools to efficiently manipulate and analyze data. Among its key functionalities lies numpy.add() a… Read More

Python numpy-Mathematical Function

Python-numpy

Python

HTML | oncontextmenu Event Attribute

This attribute works when the user right-clicks on an element to open the context menu.Supported Tags: It supports all HTML elements. Syntax: <element oncontextmenu="script"> Attribute… Read More

HTML-DOM

HTML

Web Technologies

HTML draggable Attribute

The HTML draggable attribute allows elements to be dragged and dropped within or between web pages. When set to “true”, elements become draggable, facilitating interactive… Read More

HTML-Attributes

HTML

Web Technologies

Exception Handling in PHP

An exception is an unexpected program result that can be handled by the program itself. Exception Handling in PHP is almost similar to exception handling… Read More

PHP

PHP Programs

Web Technologies

Print nodes in the Top View of Binary Tree | Set 3

Top view of a binary tree is the set of nodes visible when the tree is viewed from the top. Given a binary tree, print… Read More

tree-level-order

tree-view

DSA

Tree