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An employee from the Ads department invited me to talk on Skype. On time, they first introduced what the Ads department does and then offered me a link to work on a coding problem. After finishing, they asked me about the time and space complexity an

First, there was a technical screening interview. Then, virtual onsite interviews followed, with multiple rounds covering technical problems, system design, and behavioral questions. Prepare thoroughly on data structures and algorithms.

There were a total of 5 problem-solving questions during the virtual onsite, including a system design session and a behavioral interview. All the algorithmic questions can be found on LeetCode, with difficulty levels ranging from easy to hard.