I applied through a recruiter.

From my understanding, this company lacks organizational structure. Teams seem unaware of each other's projects, resulting in wasted time and resources on duplicate efforts. Trust seems to be low within cross teams. During the interview, I proposed several methods to address these challenges, although the interviewer did not seem to be happy about receiving recommendations. The interview poses little challenge for an experienced or knowledgeable developer. I finished the assignment 15 minutes ahead of schedule. However, the interviewer seemed to struggle to ask additional questions. They primarily focus on hashing and arrays. It's worth noting that they won't hold back wasting your time even if they've already chosen another candidate long before your interview. While I found their conduct unprofessional, it wasn't a setback at all. If you plan on working for this company, I wouldn't recommend that; however, you could use the interview as a training session.

Hashing, arrays, writing test cases, and running your code to make sure it passes all test cases.