How many leetcode problems until comfortable?

New
agmizu

New

PRE
Amazon
agmizumore
Feb 13 22 Comments

Poll time! How many LCs did you solve before you were comfortable and consistent in passing interviews? How much did you improve?

It’s a mix of both, but how did LCs help more - because you could generalize better to new problems, or because you were likely to see a previously-solved problem?

Post your # LCs, # on-sites, # offers! With company details if possible.

#leetcode

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TOP 22 Comments
  • New / Eng (>’-‘)>
    I did few LC (<50) but spent a couple months reviewing concepts like i was studying for an exam. EPI was helpful in summarizing concepts and guiding my study.
    Feb 13 5
    • New / Eng (>’-‘)>
      elements of programming interviews
      Feb 13
    • Thanks. I do the cracking the coding interview
      Feb 13
  • BYTON / Eng BYTOFF
    Like Arnold used to say, “start counting only after you get tired”
    Feb 13 3
    • BYTON / Eng BYTOFF
      “LC with me if you want to live!”
      (in the Bay Area)
      Feb 13
    • New
      agmizu

      New

      PRE
      Amazon
      agmizumore
      OP
      Winner ^
      Feb 13
  • Amazon / Eng
    ohhimark

    Amazon Eng

    PRE
    Amazon
    ohhimarkmore
    I did about ~200 for new grad apps and was decent (offers at Amazon and Bloomberg, rejected at HC at Google).

    300 I think would’ve been the peak of my performance.
    Feb 13 2
    • New
      agmizu

      New

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      Amazon
      agmizumore
      OP
      Thanks for the reply. In your interviews did you see many problems that were identical (or near-identical) to ones you’d already solved?
      Feb 13
    • Amazon / Eng
      ohhimark

      Amazon Eng

      PRE
      Amazon
      ohhimarkmore
      I’d say about half of my questions were straight from LC.
      Feb 13
  • Intel / Eng Feetcode
    200 questions for me,
    After that I didn't seen any improvements from solving mediums.

    Of course I can go after more hard problems but the time ROI is not worth it.

    I interviewed with Apple and passed their on-site, and I have upcoming on site with Amazon.
    Feb 13 4
    • New
      agmizu

      New

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      Amazon
      agmizumore
      OP
      Sorry, I was asking whether you saw similar problems *in actual interviews*. Spaced repetition makes sense!
      Feb 13
    • Intel / Eng Feetcode
      Oh gotcha, during my apple interview, one of the coding rounds had exactly a similar problem from leetcode. I didn't remember the exact solution but I remembered the general idea of how to solve it 🙂.
      Feb 13
  • Facebook TGEH76
    ~70 questions felt like enough. Learning and understanding concepts is more important IMO
    Feb 13 0
  • Oracle IDDQddgw
    But really, it is quite subjective
    Feb 13 2
    • New
      agmizu

      New

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      Amazon
      agmizumore
      OP
      True. I guess by “consistent” I’m thinking roughly >= 65% on-site pass rate. That’s roughly 90% pass rate for an individual round, assuming a simple model where you need to have 4 consecutive successful rounds, 0.9^4.
      Feb 13
    • New
      agmizu

      New

      PRE
      Amazon
      agmizumore
      OP
      People can also post their # LCs, # on-sites, # offers!
      Feb 13

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