I was reached out to by a recruiter to schedule a quick chat.

She was very kind and professional, and also understanding when I told her about the limited time window I had (due to an upcoming offer from another company).

She also gave me background on what my interviews would be like, as well as the internship programs at MongoDB.

My first round was a 45-minute technical phone interview with an engineer.

After that, I moved onto the final round interviews about a week later. Over the course of three hours, I had video interviews with three different MongoDB engineers from different teams.

All the engineers were very courteous, respectful, and interesting. They told me a bit about their product and the work they do.

Two of the interviews were technical, whereas the last one was technical and partly about getting to know me and my projects.

Overall, it was a very organized and enjoyable interview process where I got to learn a lot about the company and meet some cool people.

You have a Go board full of white pieces, black pieces, and empty spots. Given the representation as an array, come up with a program to find all connected clusters of white pieces. Two pieces are said to be connected when they are touching vertically or horizontally.