# Problem solving Interview Questions

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### Customer Service REp at Yahoo

Apr 3, 2009
 “How many tennis balls are in this room and why?”

### 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 Engineer In Test at Google

Jan 15, 2010
 “You are a parking lot attendant in a lot that has one open spot, and you want to move the cars from their original positions into a new arrangement. Create a program that will print out instructions...”

### Software Developer at Epic Systems Corporation

Aug 29, 2009
 “I have a log that consists of more than 100 million lines. Each line is just a data about user login, login time, etc. I want to sort them based on user login, and then if there is a tie based on...”

### Web Development Intern at AllofE Solutions

Aug 28, 2012
 “One of the software engineers asked me the question about the colored chameleons bonking into each other question. Basically, there are 15 red, 17 green, and 19 blue chameleons on a desert island...”

### Software Developer at Epic Systems Corporation

Aug 29, 2009
 “Please write a function that accepts a floating number and returns its square-root. You may not use built-in square root function from your language. However, basic operators like addition...”

### Financial Software Developer at Bloomberg L.P.

Jan 30, 2010
 “You have 25 horses, and you want to know which are the top 3 fastest, but you don't have a stopwatch. You can race the horses, but the track is only big enough to fit 5 horses at a time. How do you...”

### Technical Support Engineer at HealthEdge Software

May 29, 2012
 “If you had 9 marbles, all the same size. One is heavier than the rest. You have a balance scale. How do you determine the heavy marble in the least number of moves.”

### Trade Processor Associate at State Street Global Markets

Oct 8, 2011
 “Five guys, all of different ages enter a bar and take a seat at a round table. What is the probability that they are seated in ascending order of age? (clockwise or counter-clockwise)”

### Trade Processor Associate at State Street Global Markets

Oct 8, 2011
 “A fair die is rolled, you will be given the amount in dollars, equals to the number that shows up on the die. Up to how much dollars you will pay for playing once?”
110 of 101 Interview Questions