Capital One OA - passed, waiting on phone screen

Hack2hire Community · 2026-06-03T06:00:00.036Z

Capital One OA - passed, waiting on phone screen CodeSignal, 70 minutes, 4 questions. Camera, microphone, and screen share required. Upload your ID before starting - verification takes a few minutes and eats into your time if you're not ready. Q1: Count triplets in a string where first and last characters match (case-insensitive). Easy, under 5 minutes. Q2: Split array into two groups by greater element count with tiebreaker. Straightforward. Q3: Matrix operations - reverse row, swap rows, rotat...

leilajohnson_devJun 3, 2026

Capital One OA - passed, waiting on phone screen

Interview Experiencescapital one

217

3.4k

Replies (3)

yuna_sweJun 3, 2026

scan your ID in advance. the verification setup ate about 5 of my 70 minutes when I wasn't expecting it

User-otpctJun 3, 2026

Q4 is the one where order semantics matter. (1,212) and (212,1) are different pairs - make sure your hashmap accounts for that

georgiacarter_engJun 3, 2026

matrix rotation is the one that trips people up. new matrix approach is fine, don't waste time on in-place

leilajohnson_devJun 3, 2026

yeah I didn't even consider in-place. wrote a fresh matrix, worked fine