I applied through university. The first round was a coding challenge on HackerRank, with three coding questions, two of which were easy. After a month, I received a reply on LinkedIn stating that I had been selected.

The next interviews were scheduled a month after the results were announced. All of these were telephonic interviews conducted via Skype.

• The second round was technical and coding-focused, where they also tested my testing skills.
• The third round was also coding-based, and here my knowledge of algorithms was tested.
• The fourth round consisted entirely of technical questions with no coding, as we were running out of time.

I never received a call back regarding the result, neither a yes nor a no. I waited for a month but did not get a response. They could have shown some courtesy by replying with a yes or no. Even an interviewee's time is precious. Since I felt I did well, I was expecting a call back.

Convert the given Hindu-Arabic numeral to Roman numeral.

Level order traversal of a given tree.