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Write a function in C that takes a string, and in-place xors the first char with the last, second with second last, etc., and after the middle part sets the char to 0. Do this efficiently. Is strlen after the function always equal to (strlen before +1)/2? When is it not?
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Senior Software Engineer

Interviewed at Google

4.4★
Jan 22, 2014

Write a function in C that takes a string, and in-place xors the first char with the last, second with second last, etc., and after the middle part sets the char to 0. Do this efficiently. Is strlen after the function always equal to (strlen before +1)/2? When is it not?

The system design question was way out of my league, I am an interviewing for an embedded engineering position, instead I was asked to design a distributed network-based system. None of that applies to my domain and none of my experience helps me answer that question.
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Senior Embedded Software Engineer

Interviewed at Google

4.4★
Oct 26, 2017

The system design question was way out of my league, I am an interviewing for an embedded engineering position, instead I was asked to design a distributed network-based system. None of that applies to my domain and none of my experience helps me answer that question.

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