Pretty standard; basic, easy-to-medium LeetCode-style questions.
There were three rounds of 45-minute technical interviews.
Follow-ups regarded time and space complexity, but they were not too difficult.
Standard LeetCode preparation should be enough.
LeetCode question: Rotating 2D Matrix
The following metrics were computed from 4 interview experiences for the Block Software Engineer (Internship) role in New York, New York.
Block's interview process for their Software Engineer (Internship) roles in New York, New York is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for Block's Software Engineer (Internship) interview process in New York, New York.