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The process was one HR round followed by three technical rounds. HR pre-empted that some rounds might be conducted in Mandarin. Some interviewers were late and rude, and they didn't pay attention during the coding sections, only checking the output a

The process was non-human interaction, the classic day and age where you need to spew out some algorithms on a coding test in a set amount of time and hope you answered it well enough to move forward in the process.

They asked me to implement an LRU cache, but I couldn’t. He was nice about it and helped me try to overcome my problems. He guided me to smaller problems to solve, such as what hashing means and how to hash.