Honestly very fair and pleasant. I'm more frustrated that while I was able to complete the three parts to the question, I struggled to come up with a robust solution to meet the expectations for the role (I did a brute-force method).
This is the only company I've interviewed at where they actually gave me interview feedback after the interview. I felt that their justification for not continuing me through the process was fair (still disappointing, but I understood why).
It was DSA but within the domain I work in (web), so it wasn't straight-up LC.
Related to using web APIs
The following metrics were computed from 1 interview experience for the Block L6 software engineer role in United States.
Block's interview process for their L6 software engineer roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Block's L6 software engineer interview process in United States.