Backer Interview Questions

3,650 backer interview questions shared by candidates

We have a 4x4 grid, and we know there's a mouse trapped in one of the cells. We want to figure out which cell it's in, but we can only ask queries of the following form: given a subset of the cells, we can "scan" our grid and know whether there's a mouse within that subset or not, but not where it is. How would we figure out where the mouse is using the fewest number of scans? FOLLOW UP: How would we do this if there were two mice?
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Back End Engineer

Interviewed at EarnIn

4.1
Aug 21, 2017

We have a 4x4 grid, and we know there's a mouse trapped in one of the cells. We want to figure out which cell it's in, but we can only ask queries of the following form: given a subset of the cells, we can "scan" our grid and know whether there's a mouse within that subset or not, but not where it is. How would we figure out where the mouse is using the fewest number of scans? FOLLOW UP: How would we do this if there were two mice?

Typical HR, tell us about yourself, why you want to work here, what you know about Gorilla Logic, why you leave your previous work, all questions in a form of conversation, so you really don't feel like in an interrogatory. Technical Interview, I don't know he discard me almost immediate without talking.
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Back-End Senior Engineer (Python)

Interviewed at Gorilla Logic

4.1
Mar 14, 2022

Typical HR, tell us about yourself, why you want to work here, what you know about Gorilla Logic, why you leave your previous work, all questions in a form of conversation, so you really don't feel like in an interrogatory. Technical Interview, I don't know he discard me almost immediate without talking.

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