Meta Software Engineer(Internship) interview questions

2 separately scheduled technical interviews with different interviewers which consisted of two easy to medium leetcode difficulty questions per interview and no behavioral component lasted around 1 hour each. They include a thorough technical interview preparation page before hand.

2 Rounds. 2 problems in each interview. Needed to optimize fully to pass the interview. I was not able to solve one optimally and the interviewer wouldn't let me move on