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A question that I have seen several times with regard to Palantir: You have an array of integers where each integer has a duplicate somewhere in the array, apart from one. How would you find the non-duplicated integer? How many times would you need to iterate through the array given your solution (didn't need to know Big O notation)?
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Product Support Engineer

Interviewed at Palantir Technologies

3.8
Mar 24, 2014

A question that I have seen several times with regard to Palantir: You have an array of integers where each integer has a duplicate somewhere in the array, apart from one. How would you find the non-duplicated integer? How many times would you need to iterate through the array given your solution (didn't need to know Big O notation)?

Brainteaser: 4 people have to cross a rope bridge at night. Only 2 can cross at a time and they only have 1 flashlight. The people cross at different speeds - 10 mins, 5 mins, 2 mins, 1 min - and they cross at the speed of the slowest person. What's the fastest way to get everyone across?
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Product Designer

Interviewed at IXL Learning

3.4
Apr 2, 2013

Brainteaser: 4 people have to cross a rope bridge at night. Only 2 can cross at a time and they only have 1 flashlight. The people cross at different speeds - 10 mins, 5 mins, 2 mins, 1 min - and they cross at the speed of the slowest person. What's the fastest way to get everyone across?

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