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Member of Technical Staff Interview Questions


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How many race heats are needed to find the 3 fastest pinewood derby cars out of a field of 8, if only 4 cars can run at a time (assuming that every car will always run the way/speed and each lane is exactly equivalent)?

7 Answers

Each heat rules out 1 car (that cannot be one of the 3 fastest).

so is the answer 4 heat 1 (first 4 car) + 1 (4 second set) + 1( Top 2 from first + Top 2 from second set) + 1 (3 car heat among the 3rd placed car)

Only two races of four cars in each. Get the times of all cars and sort them. You don't need any more races because the times will be the same in subsequent races. :)

How do you reverse print a string. After answering the same by providing an out of the box API, the next unexpected question was "What if it does NOT exist". While and 2nd alternative was provided, it was pretty much shot down as being not acceptable.

3 Answers

Given a binary tree, how would you write program for getting mirror image of tree in O(n) time? Is it possible ? Assume you have no constraints on space.

4 Answers

Explain to me everything you know about multi threading.

1 Answer

Write a linked list class. Make sure it has a method where we can insert a method at a specific index.

1 Answer

Implement strstr() in C.

1 Answer

Merge 2 sorted single-linked lists into the brand new list (no pointer copy allowed). The resulting list should have the data from both lists all correctly sorted.

1 Answer

Various questions on virtualisation

1 Answer

Why do you want to leave your current position as a contract employee?

1 Answer

Given 99 unique numbers between 1..100 how do you find the missing number.

1 Answer
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