arjunpatelSep 5, 2026

Two Sigma SWE loop, OA to VO breakdown

Hack2hire Community · 2026-09-05T00:00:00.173Z

Two Sigma SWE loop, OA to VO breakdown Just finished my Two Sigma SWE loop, figured I'd share since the interview post-mortems here have helped me a lot for other companies. OA was the classic two question set, IPO share allocation and Split Drainage Tree, cut one edge in a tree to make the two resulting flow totals as close as possible. Did a DFS to get subtree sums first then scanned all possible cuts for the minimum difference. Looked both up afterward and turns out they show up in a bunch of...

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Replies (5)

User-ui9x7Sep 5, 2026

tree max independent set with your own test cases sounds stressful, how much time did you get

User-v8kdgSep 5, 2026

usually about 45 minutes from what I've seen for that round

vikramreddy1995Sep 5, 2026

the mini db bar being just get it running is good to know, I would've wasted time on exception handling

User-95hpkSep 5, 2026

hope the SD round lands well, internal tooling questions are refreshing compared to another design twitter clone

ethanliu4829Sep 5, 2026

the drainage partition question is such a Two Sigma classic at this point, glad you got exposure to it beforehand

User-o77jdSep 5, 2026

yeah searching before the OA seems to be basically expected for this company

User-m8d7pSep 5, 2026

good luck waiting to hear back, two sigma timelines seem to vary a lot

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