Developer Interview Questions

271,240 developer interview questions shared by candidates

"You are given an array of integers where every integer occurs an even number of times, except one integer that appears an odd number of times. Return the odd occurring integer. Write functioning code and read it to me when you're done."
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Software Developer

Interviewed at Amazon

3.5
Oct 22, 2011

"You are given an array of integers where every integer occurs an even number of times, except one integer that appears an odd number of times. Return the odd occurring integer. Write functioning code and read it to me when you're done."

5 horses on a 5-lane track. You have 5 horses and you want to rank the top three. All you have available to you is a track and the ability to tell perfectly in which order the horses crossed the finish line. How many races are necessary in order to rank the top three horses?
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Software Developer

Interviewed at Oracle

3.5
May 29, 2010

5 horses on a 5-lane track. You have 5 horses and you want to rank the top three. All you have available to you is a track and the ability to tell perfectly in which order the horses crossed the finish line. How many races are necessary in order to rank the top three horses?

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