Axon Fulltime Tech Phone Screen Experience: Data Structure Design Interview

The interviewer was Chinese. We started by discussing the information on my resume and asking some basic technical questions. Then came a data structure design question, similar to one from LeetCode's

The interviewer was Chinese. We started by discussing the information on my resume and asking some basic technical questions. Then came a data structure design question, similar to one from LeetCode's first interview. Afterwards, I checked online and found it mentioned in other interview experiences. It involved designing a system to manage the location of a police officer at different timestamps, and then finding the officer's location at any given time (if the timestamp wasn't in the system), returning the most recent timestamp. Understanding this took some time. After I finished, the interviewer said it was okay. We spent the remaining few minutes chatting about their daily work, and the atmosphere seemed pleasant overall. I was

rejected the next day. I don't know if it was because the technical requirements weren't met, or if they thought my coding was too slow, or if there was a second question?