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Twitter swe intern coding challenge timeout on test cases what now?

New Grad2 points3 points4 points7 months ago(1 child)

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Good question! Its like this: if the question is more about college/university, it goes in/r/csmajors; if its more about a job, it goes here; if its in between, it can go in either one.

Not difficult, very standard algorithmic questions. One of them felt so easy, I thought it might have been a joke/trick question. But therere a bunch of coding challenges floating around so this just applies to mine!

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They recommended 90 minutes for the challenge so not sure why they gave us the whole week. Yeah haha it was a fun challenge anyway so no regrets, thanks for the reply!

I wouldnt expect to hear back. If theyre giving you an entire week, I would guess they get a lot of solutions that pass everything. That bein said, last year when I took it I think there were only two questions, so maybe they added a harder weed-out question that they dont intend for everyone to pass. So its not impossible, but I really wouldnt bank on it, and I would chalk this up as a learning experience. Also twitters recruitment process is nonsense and you wont hear back for months anyway.

[S]0 points1 point2 points7 months ago(4 children)

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Its kinda a tough situation there, since you shouldnt copy from the internet, but you sort of knew what to do. I guess I would have tried to implement it from memory, maybe?

-1 points0 points1 point7 months ago(0 children)

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[S]0 points1 point2 points7 months ago(6 children)

or did you brute force it and did it the O(n3) way?

submitted7 months agobycclefevre

Im not sure I would have stopped early, since it sounds like you were really close, and odds are they dont mind if you go a little over. Of course, I was rejected at the end of it all, so take that advice with a grain of salt.

[S]0 points1 point2 points7 months ago(2 children)

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lol you remind me of myself like ~2 years ago

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0 points1 point2 points7 months ago(5 children)

I actually dont think I was close at all; there was no way I could have optimized my particular algorithm further. If you were me, would you have used the time to reimplement something from the internet?

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No idea about even the existence of this thing called leetcode and a coding challenge back then, got sent hackerrank by Twitter, bombed it completely (like maybe 3/30 test cases passed), walked away in shame

No not exactly but a similar problem. I definitely brute forced it though

New Grad0 points1 point2 points7 months ago(3 children)

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It required intense internal struggle but yes, I stopped after 90 minutes.

You mentioned Manacher so longest palindromic substring?

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off top of my head I can do it in O(n2), hackerrank times out for that?

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I received the week-long Twitter coding challenge for a summer SWE internship. There were 3 questions; the first 2 I passed all the test cases but on the 3rd I had 3/10 of them timeout. Pretty sure my implementation would give me the correct answer, just took too long.

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applied a year later and surprise they gave me another chance for internship, bombed it again

Now Im too shameful to even apply for their full-time

[S]0 points1 point2 points7 months ago(2 children)

I know there was a more optimal algorithm (Manachers), but I didnt want to copy some implementation off the internet and its not something Ive ever learned or heard of either. Basically Im asking: how screwed am I? Anyone else heard back?

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Twitter swe intern coding challenge timeout on test cases, what now?(self.cscareerquestions)

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