After applying through a referral for several jobs, one of the recruiters contacted me to know more about my background and sent me a C++ related coding assignment.

There was a typical 20-minute screen after a couple of days.

Immediately that day, my resume was forwarded to a hiring manager of a different team.

He called and asked a tricky mathematical question. Since I haven't been in touch with these concepts for several years, I was unable to solve it. He mocked me, saying, "You must have definitely learned it," and moved on to the next question, adding, "I hope you remember this at least."

There were some object-oriented related questions.

Then, we discussed my solution to the coding assignment.

Finally, there were a couple of easy data structures and algorithms questions.

Rude hiring manager!

What are ways to represent or store a graph, and how do we decide on our option?