Fb onsite has to perform perfectly?
Had fb onsite today at Menlo Park. Six interviews. Aced four. Didn't do perfectly in two of them. One coding one, interviewer asked me a bunch of trie questions which I all solved. But he finally followed it up with how to compress a trie to save storage when there was only 10min left so I walked through the idea but didn't have time to code it up. I searched online and it seems impossible to implement a full trie compression bug free in a 10min interview. He said it was ok and most candidates couldn't even come close to that, but I dont know if he was just being polite. Another shadowed/training interview, the interviewer only had one correct answer in his mind and had to correct me every time I proposed an alternative option. That was a system design interview so I didn't understand why would he only accept one single correct answer. Anyway, what is the chance that I am gonna pass or get rejected? If I get rejected, I really dont see anything I can improve on other than luck.
Based on what you said, it doesn't sound bad. Good luck!!
Sounds fine, you don't need to be perfect. Shadows don't count, sounds like that person should fail their training and have to redo.
You should be fine
You're not expected to code a solution for everything you're asked. I often have follow-up questions that dives deeper into the topic for people that are able to complete the coding with time left. I don't expect any coding on the follow-ups.
So this follow up is on top of two coding questions you are suppose to complete in 45 mins?
Just mentioning something like a ternary search trie and what it looks like without coding it should be enough
On the trie one, they're just testing your thinking, even if it's impossible. I actually like that question. My FB interview was def not perfect and I got an offer.
Facebook interviews are crazy