PayPal Software Engineer interview questions

I applied through college/university.The whole process took two days.On day 1 there was a hacker rank screening test.The next day 20 members were selected for interviews.There were a series of 4/5 interviews after which the results were announced.

the interview included algorithms, databases, web development, heaps, trees, data structures, culture fit questions, and of course, lots of coding, lots of debugging and using unix tools, code up a method for splitting a heap into two trees, unix tools about coreutils and other technological things. operations on data were asked to transform them into useful digestible things