Meta Software Engineer Internship interview questions

You have an OA, then a phone interview with an engineer. The question was very fair. The experience was neutral, because I got rejected, which wouldn't be as bad if they permitted feedback. If they gave feedback on what was wrong, it would've been more positive, but seems like a waste of my time to get spend 2 hours solving problems, get the right answers or pretty close, and then just get rejected with no feedback