Heaps, Binary Trees, DFS/BFS, and Dynamic Programming. I forget the individual questions, but my biggest advice would be to purchase the Leetcode membership and start doing the Facebook questions about 3-4 weeks before your first interview. A lot of their questions are reused and can be easily solved with practice.
Can't disclose. Signed nda agreement
I can not really remember the question.
Given a string, we can cyclicly shift the string. Return the number of strings that has same character on the front and tail.
Create your own queue with arrays
Describe about yourself.
Best time to sell stock.
What did you do in your previous employment
One simple System design question (didn't go too in-depth). A couple different related technical coding questions. Know your standard algorithms and data structures: graphs, queue, stack, lists, hashmaps ect. and be able to apply them to real world situations.
Some basic Java questions
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