The position I interviewed for was a 10-month contract through a staffing agency. To get an in-person interview, I answered a 4-question written test that was emailed to me. In my opinion, the questions were not very well thought out and did not reflect well on the hiring process I was about to enter. At least one of the questions was relevant to the position for which I was interviewing, though it was rather trivial.

The in-person interview consisted of three 45-minute sessions, each of which involved solving a programming problem on the whiteboard. The questions were not relevant to the task I would be performing if hired; they were generic algorithms from a Comp Sci 101 test.

Unfortunately, I am not adept at solving irrelevant problems in a "prison cell interrogation" environment, so I did not receive a callback. Fortunately, this weakness has not prevented me from having an extremely successful career, just not at any companies that utilize this lazy approach to interviewing.

Write a function to compute the square root of a number without using any built-in functions.

Given two very large numbers, each of which is so large that it can only be represented as an array of integers, write a function to multiply them.

Write a function to display a JSON string in pretty format.