Rakuten Software Engineer interview questions

3 interview questions, 1 easy, 1 medium and 1 very hard in 3 hours. Couldn't finish 3rd so did not get any response. Answers were available online but I checked after the interview. If someone is good with algorithms and data structures they might end up solving all 3 easily.

In my interview, there was a manager and a team leader without a technical background. I had a generic conversation and no technical questions. They asked me where I live, how much time take to go to work and stuff like that. Since they are in desperate need of staff because nobody wants to work here, they do not check whether a candidate with the skills necessary to understand this role. They check if a person is good looking and can have polite conversations.