The hiring manager gave me a HackerRank test (implement this data structure). He sat back and let me struggle. True to numerous interview guides, I asked clarifying questions and vocalized my thought process. He didn't seem to care. I suspect he was reading email for most of it. After timing out with most of the assignment complete, I said I knew it didn't go great and asked for advice. He said something like, "You should do more LeetCode exercises to sharpen your mind." WOW. The guy doesn't know me and thinks if I don't remember SelectMany syntax off the top of my head, then my brain is tapioca. And he's a manager! Stay away from this company unless you could care less about human interaction and just want to make a lot of money. You'll fit right in!

Implement MultiMap and get the tests to pass while I check my Slack messages.