I had the initial recruiter call, after which the phone interview was scheduled.

The interviewer seemed to be very distracted during the interview. The question was not difficult. He said I didn't necessarily have to get the code running.

But besides a few initial minor typos, which I fixed immediately, I had fully working code with correct output for all the discussed test cases after running it.

Since we had extra time, he asked me an extension, which I also solved correctly very quickly and had the code running and passing every test case.

Since we still had time left, I wanted to refactor my code a little. I told him initially that I wanted to do this after ensuring the correctness of the code, and he agreed. But he later said the code looked good and moved on to questions, and the interview ended 10 minutes early.

I got a generic email reject without any feedback 2 days after the interview. I've never had such a bad interview experience. This was such a waste of time.

Compute the size of the largest connected shape in a matrix and compute the total number of disconnected shapes.