I was brought in for a software engineer interview. There were four technical sessions with a lunch in the middle.

Initially, I was brought in with a group of people. They gave us an introduction to the interview process and said that our interviews would be scheduled later.

The problems ranged from algorithms to architecting a system.

Shift the elements of an array in place by a given amount.

Traverse a binary tree in order without using recursion from an arbitrary node in the tree.

A design session where they wanted to keep a database of words to articles that contained those words. How would I design a system to look that up.