Online - automated

Phone - 2 questions

Onsite - 4 interviewers/questions

Phone - 2 interviewers/questions

Applied through a referral at Google Careers while in college. Completed their first automated interview with no human interaction, which was absurdly easy. This was followed by a phone interview that was not too difficult, and then an onsite that ranged from average to semi-difficult. All problems had many parts with increasing difficulty.

All onsite interviews felt very good, but all phone interviews felt a little impersonal.

Find the minimum amount of power to power any city in a grid from a power plant with all positive weight connections.