Airbnb Software Engineer interview questions

After passed the OA, received the two round phone interview in two weeks. the Interview lasted for 2 nearly two hours. The question is not easy and needs a good understanding of algorithms and data structures.

The whole process contains 3 onsite interviews and 2 culture interviews. The onsite interviews focus on algorithms and data strucutres, and require the candidate to solve a problem on a online code site like leetcode within 45 mins. The problem is between middle and hard, and your code should pass all testcases the interviewer provides.