# Category Archives: Technical Scripter

## Move all special char to the end of the String

In this article, we will learn how to move all special char to the end of the String. Examples: Input : !@\$%^&*AJAY Output :AJAY!@\$%^&* Input… Read More »

## How to run JavaScript from PHP?

JavaScript is the client side scripting language and PHP is the server side scripting language. JavaScript is used as client side to check and verify… Read More »

## Expected number of coin flips to get two heads in a row?

Problem : Find the expected number of times a coin must be flipped to get two heads consecutively? Solution : The key is to observe… Read More »

## Futuristic Solution to Privacy and Security in online social media

Social media has become an important part of our lives. This has led to rising of lots of messaging apps like Messenger, WhatsApp and so… Read More »

## Digits of element wise sum of two arrays into a new array

Given two arrays of positive integers A and B of sizes M and N respectively, the task is to push A[i] + B[i] into a… Read More »

## How to position a div at the bottom of its container using CSS?

Set the position of div at the bottom of its container can be done using bottom, and position property. Set position value to absolute and… Read More »

## Service Now On Campus Placement

Round-1 (Online Test Round) There were 30 questions asked in 30 minutes duration in an online test environment created by Service Now. The questions were… Read More »

## Number of sub-strings which are anagram of any sub-string of another string

Given two strings S1 and S2, the task is to count the number of sub-strings of S1 that are anagrams of any sub-string of S2.… Read More »

## Sum of Bitwise-OR of all subarrays of a given Array | Set 2

Give an array of positive integers. The task is to find the total sum after performing the bitwise OR operation on all the sub-arrays of… Read More »

## Sum of first N natural numbers which are divisible by X or Y

Given a number N. Given two numbers X and Y, the task is to find the sum of all those numbers from 1 to N… Read More »

## Find maximum among all right nodes in Binary Tree

Given a Binary Tree. The task is to find the maximum value among all of the right child nodes of the Binary Tree. Note: If… Read More »

## ML | Unsupervised Face Clustering Pipeline

Live face-recognition is a problem that automated security division still face. With the advancements in Convolutions Neural Networks and specifically creative ways of Region-CNN, it’s… Read More »

## Minimize the difference between minimum and maximum elements

Given an array of integers and an integer . It is allowed to modify an element either by increasing or decreasing them by k (only… Read More »

## Rearrange all elements of array which are multiples of x in decreasing order

Given an array of integers arr[] and an integer x, the task is to sort all the elements of the array which are multiples of… Read More »

## Introduction to Merkle Tree

Merkle tree also known as hash tree is a data structure used for data verification and synchronization. It is a tree data structure where each non-leaf… Read More »