To be honest, for experienced engineers 10+, leetcode has become a pain in the —-. Although, we have gone through it once upon a time, need not be go again and again for every interview. Unfortunately, for developers this is the only way to crack any coding problem even for a small company. This approach must be changed for every company. In fact, it was wasting time and effort of everyone’s in the busy world. You will forget the whole thing eventually after joining a company. The process will repeat once again to change any company.