IO Budget / Timing: Since I was out of touch on this topic, I was not very well prepared on this. But I think I handled it well Also, was surprised to see a question like: How many ping pong balls would you need to fill up a 20X20 meeting room? etc. The idea was to see more on how I'd approach the problem and not necessarily give the right answer.

generate a output pulse which is high for one clk pulse and low for N clk pulse. N is 2^n-1. n is input from user