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

Coding Challenge

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.

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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)

We could always do with more help and wisdom, friend! The better the FAQ, the harder we can come down on lazy posters with low-effort OPs, which means a higher quality subreddit experience foryou.

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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