Resume screen, OA, recruiter screen, technical phone (rejected).

My interviewer was a recent grad with <= 2 YOE, and the interview frankly did not go very smoothly (and I've done a lot of interviews).

The question given was very nebulous, and asking for clarification regarding the problem was quite time-consuming and laborious.

There was a follow-up question, and when I presented my approach and pseudocode for it (interviewer only asked for pseudocode), my interviewer did not provide any guidance beyond "I'm not sure if this works," when I can say with 90%+ confidence that my approach did in fact work.

Received a standard rejection email a few days later with no feedback.

question involving storage and file sizes