Overall communication was a mess. I got an email stating there was a technical round solving a LeetCode medium/hard question, followed by four hours of interviews. After completing the rounds of interviews, I was met with a week of silence. Then, the hiring manager told me to return for another technical round because they had a change in process, and the recruiter was MIA. After that technical round, a week went by. The hiring manager then emailed, stating they hoped to have a decision by next week. Another week went by. Geico announced layoffs, and I received an automated email stating I had been rejected.

Build a math equation evaluator given a string as input. The evaluator must also work with () to prioritize operations.