Development Interview Questions

137,190 development interview questions shared by candidates

I was asked a pretty straight forward brain teaser during my last phone interview, which they said they don't normally do, but because I put that I was a logical problem solver on my resume they couldn't resist the opportunity to. It was the following "There are 20 different socks of two types in a drawer in a completely dark room. What is the minimum number of socks you should grab to ensure you have a matching pair?"
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Software Development Engineer In Test (SDET)

Interviewed at Webtrends

3.2
Sep 26, 2012

I was asked a pretty straight forward brain teaser during my last phone interview, which they said they don't normally do, but because I put that I was a logical problem solver on my resume they couldn't resist the opportunity to. It was the following "There are 20 different socks of two types in a drawer in a completely dark room. What is the minimum number of socks you should grab to ensure you have a matching pair?"

Given an array of numbers, nums, return an array of numbers products, where products[i] is the product of all nums[j], j != i. Input : [1, 2, 3, 4, 5] Output: [(2*3*4*5), (1*3*4*5), (1*2*4*5), (1*2*3*5), (1*2*3*4)] = [120, 60, 40, 30, 24] You must do this in O(N) without using division.
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Software Development Engineer

Interviewed at Amazon

3.5
Sep 25, 2012

Given an array of numbers, nums, return an array of numbers products, where products[i] is the product of all nums[j], j != i. Input : [1, 2, 3, 4, 5] Output: [(2*3*4*5), (1*3*4*5), (1*2*4*5), (1*2*3*5), (1*2*3*4)] = [120, 60, 40, 30, 24] You must do this in O(N) without using division.

In a party of N people, only one person is known to everyone. Such a person may be present in the party, if yes, (s)he doesn’t know anyone in the party. We can only ask questions like “does A know B? “. Find the stranger (celebrity) in minimum number of questions.
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Software Development Engineer

Interviewed at Amazon

3.5
Aug 3, 2016

In a party of N people, only one person is known to everyone. Such a person may be present in the party, if yes, (s)he doesn’t know anyone in the party. We can only ask questions like “does A know B? “. Find the stranger (celebrity) in minimum number of questions.

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