# Intern Interview Questions

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### Intern at Yahoo

Mar 31, 2009
 “Write a function given x, the function returns the xth number in the Fibonacci sequence.”

### Mechanical Engineer Intern at Nokia

Mar 9, 2012
 “If you have a refrigerator in an isolated room (no heat in or out) and left the door to the refrigerator open, what would happen to the temperature to the room? Would it go up, down or say the same?”

### Software Development Engineer Intern at Amazon.com

May 15, 2009
 “Given an array of integers, all but one of which appears an even number of times, find the one integer which appears an odd number of times. Upon completion, asked to improve the algorithm in terms...”

### Trading Assistant Intern at TransMarket Group LLC

Jun 12, 2012
 “What the probability of getting 2 consecutive heads in a total of N tosses (I found this one pretty hard and I didn't figure out the right answer at the time.)”

### Software Engineer Intern at Facebook

Nov 15, 2012
 “Given an unsorted array, extract the max and min value using the least number of comparison.”

### Software Development Engineering Intern at Amazon.com

Jun 10, 2012
 “Can you think of an example of a scenario where you would want to use a tree with more degrees of branching than a binary tree?”

Sep 28, 2010
 “What is 29^2?”

Feb 21, 2012
 “You have three barrels. One barrel is filled with apples, one with oranges, and one with both apples and oranges. Each barrel is mislabeled. You can take out as many fruit as you like form each...”

### Web Technology Intern at Riot Games

Apr 25, 2014
 ““Imagine that you have three boxes, one containing two black marbles, one containing two white marbles, and the third, one black marble and one white marble. The boxes were labeled for their contents...”

### Software Development Engineer Intern at Amazon.com

Feb 10, 2013
 “I was asked two questions. Q 1. You are given two version numbers of a software, like Version 10.3.4 and Version 10.3.41. Write a program to find out which of the version numbers are the latest. If...”
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