RingCentral Associate Software Engineer interview questions

Online assesment having 2 questions . one is on Graph (some modificaiton of Dijstra's) and other one was of Bitwise(somewhat like number of rotations required to make given number to zero ).

Initial phone call with recruiter, followed by 4 rounds of video call interviews and one written assessment. It was overall a lengthy process, but it was not stressful. After each interview within the next couple of days, I was notified by the recruiter if they were moving forward or not.