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Senior Engineer Interview Questions


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A list with a set of integers. All elements appear even number of times while one appear odd number of times. Find this number that appear odd number of times

5 Answers

There is a body of water that starts with 1 square unit, and doubles in size every day (2 units after 2 days, 4 units after 4 days). It takes 100 days to fill up. How many days would it take to fill if you started with 2 square units?

6 Answers

In saturation, the channel region pinches off well before the drain. How does current get from the source to drain then? (Since the channel is pinched off, it does not touch the drain)

3 Answers

The most difficult questions are about some particular algorithms or mathematical problems that interviewer is very familiar with but the candidate has never heard of. Not only it may create a stressful situation (candidate thinks that it is something he/she is supposed to know), it is not how the people solve new problems in IT. Many people may not be able to fully understand a particular mathematical (e.g. theoretical) theorem in a matter of 10-15 minutes and without good understanding of that particular theorem it may be hard to apply it to the real-life problem presented by the interviewer. For example, the question about finding the majority number in a large input sequence.

3 Answers

I had not expected to be asked logic questions, which made me nervous. The first one was a weigh nine items on a balancing scale to find the odd one out in the fewest scale uses

3 Answers

"Given a log file spanning multiple days, and given a page transition A -> B -> C, find all the unique users who made this page transition in the logs"

3 Answers

serialize binary tree

3 Answers

If you could be any Linux command, which would you be?

3 Answers

what is the bubble sort algorithm

3 Answers

Implement a queue using only stacks.

3 Answers
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