# Software Development Engineer Test Interview Questions

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### Software Development Engineer In Test at Google

Oct 1, 2009
 “The Game of Nim worded diffently.”

### Software Development Engineer In Test at Amazon.com

Dec 6, 2012
 “Most of them were expected. Almost all are problem solving questions. 1. Given a BST with following property find the LCA of two given nodes. Property : All children has information about their...”

### Software Development Engineer In Test (SDET) at Microsoft

Mar 16, 2011
 “Given a set of numbers -50 to 50, find all pairs that add up to a certain sum that is passed in. What's the O notation for what you just wrote? Can you make it faster? Can you find an O(n...”

### Software Development Engineer In Test at Amazon.com

May 20, 2010
 “Given a list of n numbers. All numbers except one are unique. Find the number with duplicate entry.”

### Software Development Engineer In Test at Amazon.com

Jan 27, 2012
 “Asked to implement a function that takes an integer and returns whether or not the number had an odd or even number of 1 bits.”

### Software Development Engineer In Test (SDET) at Microsoft

May 13, 2013
 “Given a binary tree, how would you set the keys/values of all the nodes and their child pointers to null. No language restriction. Do it iteratively in O(N) time with O(1) space complexity where N...”

### Software Development Engineer In Test (SDET) at Expedia

Apr 18, 2012
 “Describe and code an algorithm that returns the first duplicate character in a string?”

### Software Development Engineer In Test at Amazon.com

Dec 6, 2012
 “2. Find top 100 maximum number from a continuous input stream.”

### Software Development Engineer In Test at Amazon.com

Jan 27, 2012
 “First explain what a tree, then binary tree, then a binary search tree is. Now implement a function that verifies whether a binary tree is a valid binary search tree.”

### Software Development Engineer In Test || at Amazon.com

Mar 14, 2012
 “Write a method to decide if the given binary tree is a binary search tree or not.”
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