TikTok Software Engineer interview questions

First, I briefly introduced myself and they asked me a few behavioral questions based on my resume. Then, there were two LeetCode questions: a classic island problem, and a variation of a stock problem. They were very tricky, and I didn't give the best solution. Because the interviewer was in Asia, the interview was conducted at night.

The interview asked an Algorithm. Better prepare divide & conquer, greddy and dynamic programming. Better to prepare by do some similar questions. It also based on a real life scenario, not merely algorothm description.