basics of c printfs. The patterns used in clg days was a bit confusing for a 15 yrs exp person like me. Dont know if its of any use on daily work as a SDE. Then BST programs 30mins 3 programs. Had written 2 and half and its correct for sure. Did ask for 5 extra mins to complete. But was denied. Keep strong in basics and expect interviewer a SE asian to be strict on time. I thought i would be in for 2nd given i answered most of them. But was rejected.

First round: three medium level questions from Leetcode. Second round: how to implement a stack with generic elements; how to use gcc to debug. Third round: the interviewer not showing up.