# Software Development Engineer Interview Questions

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### Software Development Engineer at Amazon.com

Sep 1, 2011
 “Using only putchar how would you print out the ascii values for each digit in an integer. For example if the integer was 123, then you would want to print the ascii values for 1, 2, and 3.”

### Software Development Engineer at Amazon.com

Sep 13, 2010
 “Design a system for counting how many times an item is clicked on. You need to record clicks and be able to report how many clicks for a given item. Be able to report which items are the most...”

### Software Development Engineer Intern at Amazon.com

Jan 6, 2011
 “Write a program to find the square root of a double.”

### Software Development Engineer Intern at Amazon.com

Jan 6, 2011
 “Given the head pointers to two linked lists of unknown length, find the node of intersection if they do intersect.”

### Software Development Engineer at Amazon.com

Jan 21, 2010
 “Given a set of N numbers, assume that you have the set of numbers from 1 to N+1, with the exception of one number. How do you determine what number that is? What is the complexity of your solution?”

### Software Development Engineer Intern at Amazon.com

Jan 25, 2011
 “Write a function that takes in an array and repeats an integer that appears the most.”

### 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 at Microsoft

Mar 31, 2012
 “Given two binary trees T1 and T2. Find if T2 is a sub-tree of T1.”

### Software Development Engineer at Microsoft

Jan 4, 2010
 “Write an algorithm to verify if a tree is a binary search tree.”

### 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.”
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