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Staff Engineer 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. :)

Given a series of strings, find the biggest common prefix.

4 Answers

If you have a 600 digit number with only 0's and 1's, and exactly 300 1's, can the number be a square?

5 Answers

Suppose you have a device that fires an interrupt every time it fills up with 5 bits of information; how do you commit this data into a 32-bit addressable memory location, without any padding bits?

3 Answers

Describe major issues seen with Bisted memories and how to detect/avoid these issues.

2 Answers

How do you reverse an integer value (e.g. 1234 => 4321)

2 Answers

What are your people skill strengths?

1 Answer

Do you balance your checkbook?

1 Answer

describe the shortest path of a graph with negative weights

1 Answer

They didn't ask any questions

1 Answer
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