All Medium Articles

Check if the language is Context Free or Not

Prerequisite – Pumping Lemma, How to identify if a language is regular or not We typically face questions to identify which of the given languages… Read More

Theory of Computation

How to identify if a language is regular or not

Prerequisite – Regular Expressions, Regular Grammar and Regular Languages, Pumping Lemma There is a well established theorem to identify if a language is regular or not,… Read More

Theory of Computation

ZS Associates – Software Engineer (Applications) Position

Round 1: A single code was asked to be written online in a span of 1 hour. The code was to find if two strings… Read More

Experiences

Interview Experiences

Nutanix Interview Experience – Campus Placements

Nutanix Technologies came to our campus BITS Goa for On-Campus Recruitment process. They conducted multiple rounds of screening to finally select 3 Candidates. Online Test: Hackerrank… Read More

Articles

Binary Search Tree

C++

C++ Programs

Competitive Programming

CS - Placements

Data Structures

Divide and Conquer

DSA

Dynamic Programming

Experiences

Interview Experiences

Matrix

Operating Systems

Project

Tree

PHP | imagefilledpolygon() Function

The imagefilledpolygon() function is an inbuilt function in PHP which is used to draw a filled polygon. This function Returns TRUE on success and returns… Read More

Web Technologies

Minimum changes needed to make a 3*3 matrix magic square

Given a 3*3 matrix, find the minimum number of changes that need to be made to it in order to turn it into a magic… Read More

DSA

Matrix

Wipro off campus drive Interview

Round 1: It was a Amcat aptitude test and the duration of test was 110 minutes total there was 5 sections in this aptitude test… Read More

Experiences

Interview Experiences

Sort 3 numbers

Given three numbers, how to sort them? Examples: Input : arr[] = {3, 2, 1} Output : arr[] = {1, 2, 3} Input : arr[]… Read More

Picked

School Programming

Convert an Iterable to Collection in Java

Iterable and Collection have served to be of great use in Java. Iterators are used in Collection framework in Java to retrieve elements one by… Read More

Java-Collections

Java

Goldman Sachs Interview Experience (On-Campus for internship)

ONLINE TEST: It was a 2 hour on-line test on hackerrank platform with 1 coding question (LCS), 9 MCQs related to computer science and 10… Read More

Experiences

Interview Experiences

Goldman Sachs Internship Interview Experience (On-Campus)

Interview Experience- Goldman Sachs Hi, I am Ashish Gupta, student of Mathematics and Computing branch, Delhi Technological University. I recently gave interview for Goldman Sachs… Read More

DSA

Experiences

Interview Experiences

Strings

Interview Rejections – How to handle?

It takes time and effort to build up a nice resume, to become a perfect candidate for a post in your dream company. Months of… Read More

Experienced

Experiences

Interview Experiences

Cognizant Placement Paper | Aptitude Set 1

This is a model placement paper for aptitude preparation of Cognizant Technology Solutions Interview. This placement paper will cover aptitude questions that are asked in… Read More

Cognizant

interview-preparation

placement preparation

Placements

Oracle Interview Experience (On-Campus)

Round 1: It was an online test consisting of MCQ’s for 1 hr 45 mins in Oracle platform There were around 4 sections each of… Read More

Experiences

Interview Experiences

Builder Method Design Pattern in Java

Method Chaining: In java, Method Chaining is used to invoke multiple methods on the same object which occurs as a single statement. Method-chaining is implemented… Read More

Misc

Sum of all the prime divisors of a number

Given a number N. The task is to find the sum of all the prime divisors of N. Examples: Input: 60Output: 102, 3, 5 are… Read More

divisors

Prime Number

sieve

DSA

Mathematical

Count of strings that can be formed from another string using each character at-most once

Given two strings str1 and str2, the task is to print the number of times str2 can be formed using characters of str1. However, a… Read More

Constructive Algorithms

Hash

DSA

Hash

Strings

Sum of elements in range L-R where first half and second half is filled with odd and even numbers

Given a number N, create an array such the first half of the array is filled with odd numbers till N, and the second half… Read More

Arrays

Constructive Algorithms

Numbers

Competitive Programming

DSA

Mathematical

Iterator vs Collection in Java

Iterator and Collection, both has helped and comforted the programmers at many a times. But their usage and application has a very wide difference. 1.… Read More

Java - util package

Java-Collections

Java

Sudo Placement[1.5] | Partition

Given an array of positive and negative numbers. The task is to find a partition point such that none of the elements of left array… Read More

prefix-sum

Sudo Placement

Arrays

DSA

Hash