Pergunta de entrevista da empresa Bridgewater Associates
The case was an open-ended invitation to identify a problem with elevators and design a software-based solution. The interviewers were aggressive about asking why I chose the topic I did, what I wanted to do with it, etc. They wanted to make sure I could have strong opinions and back them up. I think the process was supposed to mimic a three-way brainstorming session, with me coming up with ideas and them trying to pick them apart. It all felt quite fair.
Resposta da entrevista
Sigiloso
The problem I chose had to do with elevators changing their direction of travel. When a down-elevator becomes an up-elevator, it often opens its doors unnecessarily. My solution involved designing a program to fix this. I was asked how much memory it would require, how many variables it would need, how many states it would have, etc.