Algorithm Development Interview Questions

882 algorithm development interview questions shared by candidates

The English exam was easy, just a bunch of MCQs and two small paragraphs. The technical exam was 3 problem solving exam that must be finished in 3 hours. In my opinion it was an easy exam but I was a bit clumsy, so I didn't have the chance to even read the third question. So be prepare to be short in time.
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Algorithm Engineer

Interviewed at Valeo

3.7
May 22, 2019

The English exam was easy, just a bunch of MCQs and two small paragraphs. The technical exam was 3 problem solving exam that must be finished in 3 hours. In my opinion it was an easy exam but I was a bit clumsy, so I didn't have the chance to even read the third question. So be prepare to be short in time.

Given a binary image with a single unfilled circle, try to find an efficient algorithm for finding it's radius and center. Follow-up: now assume the circle has a small degree of noise, how would you estimate the radius and center efficiently?
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Cameras Algorithm Engineer

Interviewed at Intel Corporation

3.9
Feb 12, 2017

Given a binary image with a single unfilled circle, try to find an efficient algorithm for finding it's radius and center. Follow-up: now assume the circle has a small degree of noise, how would you estimate the radius and center efficiently?

In addition to lots of stats questions, A/B testing, sql and R coding questions, I was given one of those stupid brain teaser questions. Setup was a "chicken" can move 1 foot at a time. Chickens are in a 10 foot radius circle with no fence. Farmer will hit chicken and cause it to move back 2 feet in the opposite direction if chicken gets closer to the perimeter of the circle. However, farmer will not hit chicken if the chicken will end up equally or closer to the perimeter after the 2 ft retreating move. Describe an algorithm to get the chicken out of the circle without getting hit. How many moves will it take? Is there a shape you can imagine that the chicken could not escape from?
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Algorithm Analyst/Statistician

Interviewed at Apple

4.1
Nov 23, 2016

In addition to lots of stats questions, A/B testing, sql and R coding questions, I was given one of those stupid brain teaser questions. Setup was a "chicken" can move 1 foot at a time. Chickens are in a 10 foot radius circle with no fence. Farmer will hit chicken and cause it to move back 2 feet in the opposite direction if chicken gets closer to the perimeter of the circle. However, farmer will not hit chicken if the chicken will end up equally or closer to the perimeter after the 2 ft retreating move. Describe an algorithm to get the chicken out of the circle without getting hit. How many moves will it take? Is there a shape you can imagine that the chicken could not escape from?

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