Thinkify SDE-1 Backend Developer interview questions

The CEO came in the meeting after the HR low balled me to accept 5.5lpa and he gave me, LRU cache and diameter of a tree problem. As I took 2-3 minutes to think, after just 5 minutes he left, as I didn't rot the questions so I needed time. He left the meeting told me to send the code to the HR just after 5 minutes and when I sent the code to the HR, after 10 mails she replied, she will forward it. As I knew he made me a fool and I will never ever apply and will recommend to not apply there. He recently commented on Kula'd LinkedIn post to get tools to hire. Just improve your brain and behavior tools won't do much.