Developer Intern Interview Questions

5,249 developer intern interview questions shared by candidates

There are 20 floors in a building. If you're on an elevator and you're trying to get to the 20th floor, what is the probability that 4 people ahead of you click the 20th floor before you do? Assuming you click last.
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Financial Software Developer Intern

Interviewed at Bloomberg

4
17 Apr 2012

There are 20 floors in a building. If you're on an elevator and you're trying to get to the 20th floor, what is the probability that 4 people ahead of you click the 20th floor before you do? Assuming you click last.

Suppose there is a rectangular map where you can only travel up or right to go from a start location in the bottom left corner to the top right corner, and each move is discrete. Write a program that prints all possible solutions to get from the start to finish.
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Financial Software Developer Intern

Interviewed at Bloomberg

4
5 Mar 2010

Suppose there is a rectangular map where you can only travel up or right to go from a start location in the bottom left corner to the top right corner, and each move is discrete. Write a program that prints all possible solutions to get from the start to finish.

how would you design how a cellphone implements its contact list when you press a certain letter. For example, If you press M it will tell you all the names starting with M. then if you press MI it will tell you all names starting from MI and so forth....
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Amazon Software Developer Intern

Interviewed at Amazon

3.5
1 Apr 2011

how would you design how a cellphone implements its contact list when you press a certain letter. For example, If you press M it will tell you all the names starting with M. then if you press MI it will tell you all names starting from MI and so forth....

Give me 5 different ways of finding the median (middle element) of a linked list. For the sake of simplicity, assume the list has odd number of ints. Also mention the runtime for each. Follow up: What's the fastest way you could find the median? What is the runtime? Oh.. and yes, code your answer(s) in any language of your preference.
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Software Developer Intern

Interviewed at Expedia Group

3.7
27 Aug 2012

Give me 5 different ways of finding the median (middle element) of a linked list. For the sake of simplicity, assume the list has odd number of ints. Also mention the runtime for each. Follow up: What's the fastest way you could find the median? What is the runtime? Oh.. and yes, code your answer(s) in any language of your preference.

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