Software Development Intern Interview Questions

2,989 software development intern interview questions shared by candidates

Asked general computer science topics (Describe a hash table, etc.) Didn't ask any behavioral questions, or anything about my résumé. Had two coding questions: 1) Given a Binary Search Tree, print out the median value. If there is an even number of nodes, print the average of the two middles. 2) Given a Genealogy Tree, print out the tree, row by row. For example: Dave / \ Michael Sarah / \ / \ Joe Alex Sam Tom Output would be: Dave Michael Sarah Joe Alex Sam Tom The questions weren't very hard, but I nearly ran out of time because I couldn't understand them. I spent a lot of time just trying to understand what they were asking for. They asked about the time and space complexities of everything I was doing. After I finished the second question, he gave me another problem with it. Asked if there would be a way where you get stuck in an infinite loop, and how to fix it. Also, they allowed me to choose which language I was more comfortable with. I used Java.
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Software Development Engineer Intern

Interviewed at Amazon

3.5
Mar 23, 2013

Asked general computer science topics (Describe a hash table, etc.) Didn't ask any behavioral questions, or anything about my résumé. Had two coding questions: 1) Given a Binary Search Tree, print out the median value. If there is an even number of nodes, print the average of the two middles. 2) Given a Genealogy Tree, print out the tree, row by row. For example: Dave / \ Michael Sarah / \ / \ Joe Alex Sam Tom Output would be: Dave Michael Sarah Joe Alex Sam Tom The questions weren't very hard, but I nearly ran out of time because I couldn't understand them. I spent a lot of time just trying to understand what they were asking for. They asked about the time and space complexities of everything I was doing. After I finished the second question, he gave me another problem with it. Asked if there would be a way where you get stuck in an infinite loop, and how to fix it. Also, they allowed me to choose which language I was more comfortable with. I used Java.

There multiple variations of Binary Tree traversal including normal methods like in-order, post-order, then more complex methods like skipping alternate nodes and levels. Final question was to display the binary tree in a zig-zag pattern.
Apr 14, 2021

There multiple variations of Binary Tree traversal including normal methods like in-order, post-order, then more complex methods like skipping alternate nodes and levels. Final question was to display the binary tree in a zig-zag pattern.

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