Bloomberg Software Developer interview questions

Phone Screen + 4 rounds on site, aced phone screen and 2 on site rounds, third round was design which went okay too, 4th round was very tough, got leetcode hard question, although I explained my though process and solution, interviewer didn't seem too happy

Interview was simple but very difficult to get into. Getting interviews is easier than getting the job which makes it harder. Interviews have a lot of Technical rounds and HR round.