Create an algorithm for sorting a peculiar arrays. If your fundamentals are strong (from K&R) and also from interview questions you will find on the net, and if you do at least a 100 of them, you should be able to hold your ground.
Sigiloso
I asked questions Wrote down the conditions clearly on the board Created a basic working algo Wrote down test cases Ran them through my code Made sure they saw that I had covered the boundary conditions well.