HRT rejection - watcher problem got me

Hack2hire Community · 2026-05-28T16:50:00.033Z

HRT rejection - watcher problem got me Result: Rejected Number of Rounds: 2 Had my HRT algo dev phone screen last week. Two rounds, both live coding on CoderPad over Zoom. First was the Watcher problem. 1D array, N players moving right, watcher who reverses direction at given timestamps, count how many reach the end by time T. Interviewer oral-stated the whole thing so I was scribbling notes while trying to think. Got the brute-force simulation working but fumbled edge cases on the reversals. Se...

User-z36544d ago

HRT rejection - watcher problem got me

Interview Experienceshudson river trading

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Replies (5)

noahdavis3d ago

boolean expression DP as a phone screen is rough. feels more like onsite difficulty to me

User-271ft3d ago

had the same thing with the watcher problem. oral delivery is sneaky, you're basically transcribing a problem statement while trying to think

benhe983d ago

yeah this is my biggest worry prepping for HRT. do they let you ask clarifying questions or do they just state it once?

User-n3rla3d ago

which track? algo dev or quant?

User-kbpem3d ago

brute force the watcher is manageable but getting all edge cases in 45 min under pressure is a different story

liamdavis05273d ago

c++ required or can you use python?

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