I applied through a college or university. The process took two days.

On the first day, it started at 9:30 AM with a pre-placement talk by the HR. They asked people what they knew about the company. It was like a buzzer round, and answering questions on their product line got impressions. Around 11:00 AM, they started an online coding exam on HackerEarth, with three questions on graphs, trees, and forests for a total of 421 marks. People who got more than 20% went to the next stage. By 12:45 PM, we were asked to take a lunch break and assemble back by 2:00 PM. Then we were asked to submit a solution to the rotating cube problem. We had to draw a cube in canvas that rotates with mouse drags, and also have it decelerate to stop. We were given a day of time to solve it.

On the second day, we submitted our results by 11:00 AM in the morning, and once we got it verified, we proceeded to the technical round. The technical round consists of questions on your final year projects, personal projects on your resume, and a review on how you solved the cube problem. At 1:00 PM, we were given a lunch break, and it was followed by a few more questions on loops, optimisation, favourite frameworks, and more. Around 2:30 PM, we were called in for an HR round, where everything was general questions: what we knew about them, why you want to join, how did you prepare for this interview, and so on. By 3:00 PM, we were told that we were selected, and they collected our mail IDs. They informed us that there was a mandatory six-month internship, and after that, they would consider whether to keep you or not. The next day at 10:00 AM, we received the offer letters in the mail.

How do you write a custom function to escape URL special characters? If you were to implement string replace function in C++, how would you do that? There were 2 answers. How will you find the level order traversal in a forest?