I’m a full stack JavaScript engineer. I didn’t study computer science in school so I don’t know anything about bit manipulation. Do I have to learn this? Have you ever got bit manipulation questions during interviews? I’m trying to interview for fang and top companies.
It depends on the role u r applying to and also on what you have said on ur resume. If you have C, C++ on ur resume, bit manipulation questions are fair game. I usually ask people very basic bit manipulation questions for positions in my team because we use it. Even if you don't know how to solve it, I think for any software engg role, having basic knowledge of bit ops is a must. No one is looking for Stanford bit twiddling level hacks during interview
i got asked a bit manipulation question about taking the absolute value without conditionals at google
I’ve asked questions that knowing bits helps on. Maybe at one time straight up bit manipulation. If you are not in to backend dev you should be clear and say front end or web dev. If you feel like you are hardcore just don’t know low level (don’t know how you can be both, but maybe) then yes, study it.
Yes as likely as weighted topic in data structures
Yes, we do that to make sure people don't screw up some control mask they need to send down low. Also this is a good way to screen people for fundamental understanding of the architecture.
Make sure you can confidently go through "Cracking the Coding Interview", which includes basic bit manipulation. Yes, I agree the current state of interviews sucks. Yes, I agree but manipulation has nothing to do with frontend development. But unfortunately Cracking the Coding Interview and other similar books form the bedrock of phone screens at least. Face to face interviews are much more difficult.
Imagine being asked leetcode hard questions on a firmware interview when you have been a firmware guy for 15 years...
Yes. Facebook and Two Sigma asked me
Sometimes.. multiplication using bit is a common one... I tried to answer using bit when I can
Nvidia does
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No, unless it’s very very basic