I managed a referral from an employee at Yahoo, Champaign. The recruiter contacted me for a phone interview, and then we had to attend an onsite interview in Champaign, IL. The onsite interview had three technical sessions and one session with the hiring manager.

We have a reservoir of numbers, or a range of numbers, in [a, b]. Write a program that will return the minimum of the numbers from the reservoir and remove that very number from the reservoir. At any point in time, values that were queried and taken off from the reservoir might be put back into the reservoir.