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Intern Software Development Engineer In Test Interview Questions

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You have a building with 100 stories. You also have two glass balls. You can drop the glass balls as many times as you want before they break. How can you find the floor at which they start breaking with the fewest number of drops?

3 Answers

Not truly a brain teaser because the answer is mathematical.

If you have N stories, you use the first glass ball to increment by sqrt(N) stories. Once that ball breaks, you use your second to go to the level of sqrt(N) below where it broke, and increment floor by floor. You know it must break somewhere in that group of sqrt(N) stories. I believe this method gets you a runtime of O(n^0.5).

search for "two egg problem". its a minimization of maximum regret problem http://www.datagenetics.com/blog/july22012/index.html

Design a test for ______

1 Answer

You have two results from a database query. Check if they return the same thing.

1 Answer

How would you test this plastic, compostable knife?

1 Answer

Given an eBay type service with multiple front-end applications, user information is being truncated when sent back to the user (Name was 'Andrew' but shows 'And'). Discuss your strategy on debugging this issue.

1 Answer

There was a question about delimiters that was tough.

1 Answer

Remove a node from a singly linked list.

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Concatenate two strings replacing every space or set of multiple spaces with a single dash

Given an integer, write a function that rotates the digits to the right.