Work in HR or Recruiting?
Groupon
2.9 of 5 276 reviews
www.groupon.com Chicago, IL 5000+ Employees

64 interview experiences Back to all Groupon Interview Questions & Reviews

Interview Question for Software Developer at Groupon:
Feb 14, 2013

Brain teaser question: You have two glass balls and you wanna test how strong they are by dropping them from a 100-story building. What's the algorithm that requires minimum number of trails.


Tags: brain teaser
Add Tags [?]

See more for this Groupon Software Developer Interview

Helpful Question?  
Yes | No
Inappropriate?

Answers & Comments (1)

Mar 1, 2013

by Michael:

Start at sqrt(number-of-floors), or 10 in this case. Increase by that same number until one breaks. Go back down by that number and go up by 1 for the remaining tests.
Helpful Answer?  
Yes | No
Inappropriate?

To comment on this question, Sign In with Facebook or Sign Up

Groupon – Why Work for Us?

We're making life less boring by crafting a new evolution of local commerce. We're changing the way merchants and consumers connect with each other worldwide, and the change has barely started. We're also hiring. As we… Full Overview

Provided by employer [?]

Tags are like keywords that help categorize interview questions that have something in common.