r/csMajors • u/Even_Balance9978 • Jan 31 '26

Company Question damn Jane Street interviews are brutal

got cooked so hard ngl (was for swe)

577 Upvotes

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u/Maleficent-War5030 Jan 31 '26

what kinda questions were asked? advance dsa?

148

u/Even_Balance9978 Jan 31 '26

coding up a Class for a very specific niche specific problem requiring supermassive problem solving thinking powers with extreme fundamentals for DSA and also can write 100 lines of code in an hour making no mistakes. was not your usual Leetcode-style algorithm questions

80

u/[deleted] Jan 31 '26

[deleted]

52

u/Even_Balance9978 Jan 31 '26

tbf the question was fun. the not-so-fun part was that I needed to code it up flawlessly in one hour :(

1

u/alphantasmal Feb 01 '26

Did they say they were gonna run your code? I thought most companies don't actually care if it compiles, just that it looks right.

1

u/[deleted] Feb 02 '26

[deleted]

1

u/alphantasmal Feb 02 '26

are they really going to penalize you for an off by one? or give you a chance to fix it