TikTok Software Engineer interview questions

Contacted by a recruiter and scheduled a virtual on-site interview. I know I didn't do well for that interview because I could not answer some questions about a project I did 3 years ago. Then I was ghosted about two or three weeks and got a rejection letter.

In the onsite interview, use 5 minutes to talk about my resume and ask me to finish 2 Leetcode medium questions in 40 minutes. The question is very popular and under the company tag