I got the opportunity through a staffing firm.

The interview consisted of three sections, each taking approximately one hour:

1. I met with two senior engineers for technical questions related to C++, data structures, and algorithms.
2. I met with the hiring manager and another senior engineer for technical questions and an introduction to the job.
3. I met with a senior manager for questions about my past experience and technical questions.

In all sections, I was asked to write code on paper to solve small algorithm problems. It's very important to be able to write high-quality code.

I received the offer two days after the interview.

Write a function to find out whether a linked list is cyclic.

Find the Mth-to-Last element in a linked list.